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href="https://de.wikipedia.org/wiki/Photometrisches_System" title="Photometrisches System - tedesco" lang="de" hreflang="de" data-title="Photometrisches System" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Photometric_system" title="Photometric system - inglese" lang="en" hreflang="en" data-title="Photometric system" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Sistema_fotom%C3%A9trico" title="Sistema fotométrico - spagnolo" lang="es" hreflang="es" data-title="Sistema fotométrico" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li 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href="/wiki/Spettro_elettromagnetico#Suddivisione_in_bande" title="Spettro elettromagnetico">bande</a> di <a href="/wiki/Filtro_interferenziale" title="Filtro interferenziale">filtri</a> con una sensibilità nota alla <a href="/wiki/Radiazione_solare#Radiazione_incidente" title="Radiazione solare">radiazione incidente</a>, la quale dipende solitamente dal <a href="/wiki/Sistema_ottico" title="Sistema ottico">sistema ottico</a>, dai rilevatori e dai filtri utilizzati. Per ciascun sistema fotometrico è presa come standard una stella, il cui <a href="/wiki/Indice_di_colore" title="Indice di colore">indice di colore</a> è preso come valore 0. </p><p>Il primo sistema fotometrico standardizzato ad essere sviluppato è stato il Johnson-Morgan, meglio noto come <a href="/wiki/Sistema_fotometrico_UBV" title="Sistema fotometrico UBV">sistema fotometrico UBV</a> (1953); al giorno d'oggi si contano oltre 200 sistemi standardizzati. </p><p>I sistemi fotometrici si distinguono in base alle dimensioni delle bande di <a href="/wiki/Lunghezza_d%27onda" title="Lunghezza d'onda">lunghezze d'onda</a> sfruttate: </p> <ul><li><a href="/wiki/Banda_larga" title="Banda larga">banda larga</a>, con bande più estese di 30 <a href="/wiki/Nanometro" title="Nanometro">nm</a> (di cui fa parte il sistema UBV);</li> <li>banda intermedia, compresa tra 10 e 30 nm;</li> <li>banda stretta, inferiore a 10 nm.</li></ul> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Lettere_impiegate_in_fotometria">Lettere impiegate in fotometria</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sistema_fotometrico&veaction=edit&section=1" title="Modifica la sezione Lettere impiegate in fotometria" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sistema_fotometrico&action=edit&section=1" title="Edit section's source code: Lettere impiegate in fotometria"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Gli <a href="/wiki/Astrofisico" class="mw-redirect" title="Astrofisico">astrofisici</a> fanno uso delle lettere dell'alfabeto per designare una regione dello <a href="/wiki/Spettro_elettromagnetico" title="Spettro elettromagnetico">spettro elettromagnetico</a> caratterizzata da una propria lunghezza d'onda. La maggior parte delle lettere è compresa tra l'<a href="/wiki/Radiazione_ultravioletta" title="Radiazione ultravioletta">ultravioletto</a> vicino, il <a href="/wiki/Luce_visibile" class="mw-redirect" title="Luce visibile">visibile</a> e la gran parte dell'<a href="/wiki/Radiazione_infrarossa" title="Radiazione infrarossa">infrarosso</a> vicino. </p><p>L'<a href="/wiki/Indaco" title="Indaco">indaco</a> e il <a href="/wiki/Ciano" title="Ciano">ciano</a> non sono considerati colori standard;<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> l'<a href="/wiki/Arancione" title="Arancione">arancione</a>, il <a href="/wiki/Giallo" title="Giallo">giallo</a> e il <a href="/wiki/Verde" title="Verde">verde</a> ricadono entro la banda del visibile, mentre il <a href="/wiki/Violetto" title="Violetto">violetto</a> e il <a href="/wiki/Viola_(colore)" title="Viola (colore)">viola</a> cadono nelle bande del <a href="/wiki/Blu" title="Blu">blu</a>. </p><p>Nota, le lettere non sono considerate uno standard, ma sono solo riconosciute dagli astrofisici. </p> <table class="wikitable" style="text-align:center;border-collapse:collapse;" cellpadding="2"> <tbody><tr> <th>Lettera del filtro </th> <th>Punto medio della radiazione effettiva λ<sub>eff</sub><br />per il filtro standard<sup id="cite_ref-JamesBinney_2-0" class="reference"><a href="#cite_note-JamesBinney-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </th> <th><a href="/wiki/Larghezza_a_met%C3%A0_altezza" title="Larghezza a metà altezza">FWHM</a><sup id="cite_ref-JamesBinney_2-1" class="reference"><a href="#cite_note-JamesBinney-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </th> <th>Variante/i </th> <th>Descrizione </th></tr> <tr> <th colspan="5">Ultravioletto </th></tr> <tr> <td>U </td> <td>365 nm </td> <td>66 nm </td> <td>u, u', u* </td> <td>"U" sta per "ultravioletto". </td></tr> <tr> <th colspan="5">Visibile </th></tr> <tr> <td>B </td> <td>445 nm </td> <td>94 nm </td> <td>b </td> <td>"B" sta per "blu". </td></tr> <tr> <td>V </td> <td>551 nm </td> <td>88 nm </td> <td>v, v' </td> <td>"V" sta per "visibile". </td></tr> <tr> <td>G </td> <td> </td> <td> </td> <td>g, g' </td> <td>"G" sta per "green" (verde). </td></tr> <tr> <td>R </td> <td>658 nm </td> <td>138 nm </td> <td>r, r', R', R<sub>c</sub>, R<sub>e</sub>, R<sub>j</sub> </td> <td>"R" sta per "rosso". </td></tr> <tr> <th colspan="5">Infrarosso vicino </th></tr> <tr> <td>I </td> <td>806 nm </td> <td>149 nm </td> <td>i, i', I<sub>c</sub>, I<sub>e</sub>, I<sub>j</sub> </td> <td>"I" sta per "infrarosso". </td></tr> <tr> <td>Z </td> <td> </td> <td> </td> <td>z, z' </td> <td> </td></tr> <tr> <td>Y </td> <td>1020 nm </td> <td>120 nm </td> <td>y </td> <td> </td></tr> <tr> <td>J </td> <td>1220 nm </td> <td>213 nm </td> <td>J', J<sub>s</sub> </td> <td> </td></tr> <tr> <td>H </td> <td>1630 nm </td> <td>307 nm </td> <td> </td> <td> </td></tr> <tr> <td>K </td> <td>2190 nm </td> <td>390 nm </td> <td>K Continuum, K', K<sub>s</sub>, K<sub>long</sub>, K<sup>8</sup>, nbK </td> <td> </td></tr> <tr> <td>L </td> <td>3450 nm </td> <td>472 nm </td> <td>L', nbL' </td> <td> </td></tr> <tr> <th colspan="5">Infrarosso medio </th></tr> <tr> <td>M </td> <td>4750 nm </td> <td>460 nm </td> <td>M', nbM </td> <td> </td></tr> <tr> <td>N </td> <td> </td> <td> </td> <td>N<sub>1</sub>, N<sub>2</sub>, N<sub>3</sub> </td> <td> </td></tr> <tr> <td>Q </td> <td> </td> <td> </td> <td>Q' </td> <td> </td></tr> </tbody></table> <div class="mw-heading mw-heading2"><h2 id="Filtri_utilizzati">Filtri utilizzati</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sistema_fotometrico&veaction=edit&section=2" title="Modifica la sezione Filtri utilizzati" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sistema_fotometrico&action=edit&section=2" title="Edit section's source code: Filtri utilizzati"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La seguente tabella mostra i filtri attualmente in uso da parte di telescopi o enti osservativi.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Unit%C3%A0_di_misura" title="Unità di misura">Unità di misura</a>: </p> <ul><li>Å = <a href="/wiki/%C3%85ngstr%C3%B6m" title="Ångström">Ångström</a></li> <li>nm = <a href="/wiki/Nanometro" title="Nanometro">nanometro</a></li> <li>μm = <a href="/wiki/Micrometro_(unit%C3%A0_di_misura)" title="Micrometro (unità di misura)">micron</a></li></ul> <table class="wikitable" style="text-align:center;border-collapse:collapse;" cellpadding="2"> <tbody><tr> <th>Nome </th> <th colspan="9">Filtri </th> <th>Link </th></tr> <tr> <td>telescopio da 2,2 m - La Silla, ESO </td> <td>J = 1,24 µm </td> <td>H = 1,63 µm </td> <td>K = 2,19 µm </td> <td>L' = 3,78 µm </td> <td>M = 4,66 µm </td> <td>N<sub>1</sub> = 8,36 µm </td> <td>N<sub>2</sub> = 9,67 µm </td> <td>N<sub>3</sub> = 12,89 µm </td> <td colspan="1"> </td> <td><a href="/wiki/Osservatorio_di_La_Silla" title="Osservatorio di La Silla">telescopio da 2,2 m - La Silla</a>, <a href="/wiki/European_Southern_Observatory" class="mw-redirect" title="European Southern Observatory">ESO</a><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>2MASS </td> <td>J = 1,25 µm </td> <td>H = 1,65 µm </td> <td>K<sub>s</sub> = 2,15 µm </td> <td colspan="6"> </td> <td><a href="/wiki/2MASS" title="2MASS">Two Micron All-Sky Survey</a> </td></tr> <tr> <td>CFHTLS (Megacam) </td> <td>u<sup>*</sup> = 374 nm </td> <td>g' = 487 nm </td> <td>r' = 625 nm </td> <td>i' = 770 nm </td> <td>z' = 890 nm </td> <td colspan="4"> </td> <td><a href="/wiki/Canada%E2%80%93France%E2%80%93Hawaii_Telescope" class="mw-redirect" title="Canada–France–Hawaii Telescope">Canada-France-Hawaii Telescope</a> </td></tr> <tr> <td>Chandra X-ray Observatory </td> <td>LETG = 0,08-0,2 k<a href="/wiki/Elettronvolt" title="Elettronvolt">eV</a> </td> <td>HETG = 0,4-10 keV </td> <td colspan="7"> </td> <td><a href="/wiki/Chandra_X-ray_Observatory" title="Chandra X-ray Observatory">Chandra X-ray Observatory</a> </td></tr> <tr> <td>CTIO </td> <td>J = 1,20 µm </td> <td>H = 1,60 µm </td> <td>K = 2,20 µm </td> <td>L = 3,50 µm </td> <td colspan="5"> </td> <td><a href="/wiki/Cerro_Tololo_Inter-American_Observatory" class="mw-redirect" title="Cerro Tololo Inter-American Observatory">Cerro Tololo Inter-American Observatory</a>, divisione del <a href="/wiki/NOAO" class="mw-redirect" title="NOAO">NOAO</a> </td></tr> <tr> <td>Cousin RI photometry </td> <td>R<sub>c</sub> = 647 nm </td> <td>I<sub>c</sub> = 786,5 nm </td> <td colspan="7"> </td> <td>Cousin RI photometry, 1976<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>DENIS </td> <td>I = 0,79 µm </td> <td>J = 1,24 µm </td> <td>K = 2,16 µm </td> <td colspan="6"> </td> <td><a href="/w/index.php?title=Deep_Near_Infrared_Survey&action=edit&redlink=1" class="new" title="Deep Near Infrared Survey (la pagina non esiste)">Deep Near Infrared Survey</a> </td></tr> <tr> <td>Eggen RI photometry </td> <td>R<sub>e</sub> = 635 nm </td> <td>I<sub>e</sub> = 790 nm </td> <td colspan="7"> </td> <td>Eggen RI photometry, 1965<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>FIS </td> <td>N60 = 65,00 µm </td> <td>WIDES-S = 75,00 µm </td> <td>WIDE-L = 145,00 µm </td> <td>N160 = 160,00 µm </td> <td colspan="5"> </td> <td>Far-Infrared Surveyor on board, <a href="/wiki/Telescopio_spaziale_AKARI" title="Telescopio spaziale AKARI">telescopio spaziale AKARI</a> </td></tr> <tr> <td>GALEX </td> <td>NUV = 1800-2750Å </td> <td>FUV = 1400-1700Å </td> <td colspan="7"> </td> <td><a href="/wiki/GALEX" class="mw-redirect" title="GALEX">GALaxy Evolution Explorer</a> </td></tr> <tr> <td>GOODS (Hubble ACS) </td> <td>B = 435 nm </td> <td>V = 606 nm </td> <td>i = 775 nm </td> <td>z = 850 nm </td> <td colspan="5"> </td> <td><a href="/w/index.php?title=Advanced_Camera_for_Surveys&action=edit&redlink=1" class="new" title="Advanced Camera for Surveys (la pagina non esiste)">Advanced Camera for Surveys</a> sul <a href="/wiki/Telescopio_spaziale_Hubble" title="Telescopio spaziale Hubble">telescopio spaziale Hubble</a> </td></tr> <tr> <td>HAWC </td> <td>Band 1 = 53 µm </td> <td>Band 2 = 88 µm </td> <td>Band 3 = 155 µm </td> <td>Band 4 = 215 µm </td> <td colspan="5"> </td> <td>High-resolution Airborne Wideband Camera - <a href="/wiki/Stratospheric_Observatory_for_Infrared_Astronomy" title="Stratospheric Observatory for Infrared Astronomy">SOFIA</a><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>HDF </td> <td>450 nm </td> <td>606 nm </td> <td>814 nm </td> <td colspan="6"> </td> <td><a href="/wiki/Hubble_Deep_Field" class="mw-redirect" title="Hubble Deep Field">Hubble Deep Field</a> dal telescopio Hubble </td></tr> <tr> <td>IRTF NSFCAM </td> <td>J = 1,26 µm </td> <td>H = 1,62 µm </td> <td>K' = 2,12 µm </td> <td>K<sub>s</sub> = 2,15 µm </td> <td>K = 2,21 µm </td> <td>L = 3.50 µm </td> <td>L' = 3,78 µm </td> <td>M' = 4,78 µm </td> <td>M = 4,85 µm </td> <td><a href="/w/index.php?title=NASA_Infrared_Telescope_Facility&action=edit&redlink=1" class="new" title="NASA Infrared Telescope Facility (la pagina non esiste)">NASA Infrared Telescope Facility</a> NSFCAM<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>ISAAC UTI/VLT </td> <td>J<sub>s</sub> = 1,2 µm </td> <td>H = 1.6 µm </td> <td>K<sub>s</sub> = 2,2 µm </td> <td>L = 3.78 µm </td> <td><a href="/w/index.php?title=Brackett_series&action=edit&redlink=1" class="new" title="Brackett series (la pagina non esiste)">Brα</a> = 4,07 µm </td> <td colspan="4"> </td> <td><a href="/wiki/Very_Large_Telescope" title="Very Large Telescope">Infrared Spectrometer And Array Camera at Very Large Telescope</a> </td></tr> <tr> <td>Johnson system (UBV) </td> <td>U = 364 nm </td> <td>B = 442 nm </td> <td>V = 540 nm </td> <td colspan="6"> </td> <td><a href="/wiki/Sistema_fotometrico_UBV" title="Sistema fotometrico UBV">Sistema fotometrico UBV</a> </td></tr> <tr> <td>OMC </td> <td>Johnson V-filter = 500-580 nm </td> <td colspan="8"> </td> <td>Optical Monitor Camera<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> sull'<a href="/wiki/INTEGRAL" title="INTEGRAL">INTEGRAL</a> </td></tr> <tr> <td>Pan-STARRS </td> <td colspan="9">usa i filtri u,g,r,i,z dello Sloan + y = 1005 nm </td> <td><a href="/wiki/Pan-STARRS" title="Pan-STARRS">Panoramic Survey Telescope And Rapid Response System</a> </td></tr> <tr> <td>ProNaOS/SPM </td> <td>Band 1 = 180-240 µm </td> <td>Band 2 = 240-340 µm </td> <td>Band 3 = 340-540 µm </td> <td>Band 4 = 540-1200 µm </td> <td colspan="5"> </td> <td>PROgramme NAtional d'Observations Submillerètrique/Systéme Photométrique Multibande, balloon-borne experiment<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>Sloan </td> <td>u' = 354 nm </td> <td>g' = 475 nm </td> <td>r' = 622 nm </td> <td>i' = 763 nm </td> <td>z' = 905 nm </td> <td colspan="4"> </td> <td><a href="/wiki/Sloan_Digital_Sky_Survey" title="Sloan Digital Sky Survey">Sloan Digital Sky Survey</a> </td></tr> <tr> <td>SPIRIT III </td> <td>Band B1 = 4,29 µm </td> <td>Band B2 = 4,35 µm </td> <td>Band A = 8,28 µm </td> <td>Band C = 12,13 µm </td> <td>Band D = 14,65 µm </td> <td>Band E = 21,34 µm </td> <td colspan="3"> </td> <td>Camera infrarossa sul <a href="/wiki/Midcourse_Space_Experiment" title="Midcourse Space Experiment">Midcourse Space Experiment</a><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>Spitzer IRAC </td> <td>3,6 µm </td> <td>4,5 µm </td> <td>5,8 µm </td> <td>8,0 µm </td> <td colspan="5"> </td> <td>Infrared Array Camera sul <a href="/wiki/Telescopio_spaziale_Spitzer" title="Telescopio spaziale Spitzer">telescopio spaziale Spitzer</a> </td></tr> <tr> <td>Spitzer MIPS </td> <td>24 µm </td> <td>70 µm </td> <td>160 µm </td> <td colspan="6"> </td> <td><i>Multiband Imaging Photometer for Spitzer</i> sullo Spitzer </td></tr> <tr> <td>Filtri Stromvil </td> <td>U = 345 </td> <td>P = 374 </td> <td>S = 405 </td> <td>Y = 466 </td> <td>Z = 516 </td> <td>V = 544 </td> <td>S = 656 </td> <td colspan="2"> </td> <td>Fotometria Stromvil </td></tr> <tr> <td>Filtri Strömgren </td> <td>u = 350 nm </td> <td>v = 411 nm </td> <td>b = 467 nm </td> <td>y = 547 nm </td> <td>β narrow = 485,8 nm </td> <td>β wide = 485 nm </td> <td colspan="3"> </td> <td><a href="/wiki/Sistema_fotometrico_uvby" title="Sistema fotometrico uvby">Sistema fotometrico di Strömgren</a> </td></tr> <tr> <td>UKIDSS (WFCAM) </td> <td>Z = 882 nm </td> <td>Y = 1031 nm </td> <td>J = 1248 nm </td> <td>H = 1631 nm </td> <td>K = 2201 nm </td> <td colspan="4"> </td> <td><a href="/w/index.php?title=UKIRT_Infrared_Deep_Sky_Survey&action=edit&redlink=1" class="new" title="UKIRT Infrared Deep Sky Survey (la pagina non esiste)">UKIRT Infrared Deep Sky Survey</a> </td></tr> <tr> <td>Sistema fotometrico di Vilnius </td> <td>U = 345 nm </td> <td>P = 374 nm </td> <td>X = 405 nm </td> <td>Y = 466 nm </td> <td>Z = 516 nm </td> <td>V = 544 nm </td> <td>S = 656 nm </td> <td colspan="2"> </td> <td><a href="/wiki/Sistema_fotometrico_di_Vilnius" title="Sistema fotometrico di Vilnius">Sistema fotometrico di Vilnius</a> </td></tr> <tr> <td>VISTA IRC </td> <td>Z = 0,88 µm </td> <td>Y = 1,02 µm </td> <td>J = 1,25 µm </td> <td>H = 1,65 µm </td> <td>K<sub>s</sub> = 2,20 µm </td> <td>NB1.18 = 1,18 µm </td> <td colspan="3"> </td> <td><a href="/wiki/VISTA_(telescopio)" title="VISTA (telescopio)">Visible & Infrared Survey Telescope for Astronomy</a> </td></tr> <tr> <td>XMM-Newton OM </td> <td>UVW2 = 212 nm </td> <td>UVM2 = 231 nm </td> <td>UVW1 = 291 nm </td> <td>U = 344 nm </td> <td>B = 450 nm </td> <td>V = 543 nm </td> <td colspan="3"> </td> <td><a href="/wiki/XMM-Newton" title="XMM-Newton">XMM-Newton</a> Optical/UV Monitoring<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>XEST Survey </td> <td>UVW2 = 212 nm </td> <td>UVM2 = 231 nm </td> <td>UVW1 = 291 nm </td> <td>U = 344 nm </td> <td>B = 450 nm </td> <td>V = 543 nm </td> <td>J = 1,25 µm </td> <td>H = 1,65 µm </td> <td>K<sub>s</sub> = 2,15 µm </td> <td>Include <a href="/wiki/2MASS" title="2MASS">2MASS</a> con <a href="/wiki/XMM-Newton" title="XMM-Newton">XMM-Newton OM</a><sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </td></tr> </tbody></table> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sistema_fotometrico&veaction=edit&section=3" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sistema_fotometrico&action=edit&section=3" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://hyperphysics.phy-astr.gsu.edu/Hbase/vision/specol.html">Spectral Colors</a></span> </li> <li id="cite_note-JamesBinney-2"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-JamesBinney_2-0">a</a></i></sup> <sup><i><a href="#cite_ref-JamesBinney_2-1">b</a></i></sup></span> <span class="reference-text"><a href="/w/index.php?title=James_Binney&action=edit&redlink=1" class="new" title="James Binney (la pagina non esiste)">Binney, J.</a>; Merrifield M. <i>Galactic Astronomy</i>, Princeton University Press, 1998, ch. 2.3.2, pp. 53</span> </li> <li id="cite_note-3"><a href="#cite_ref-3"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.astronomy2006.com/files/glass_talk.pdf">Classic and New Photometric Systems</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070928074505/http://www.astronomy2006.com/files/glass_talk.pdf">Archiviato</a> il 28 settembre 2007 in <a href="/wiki/Internet_Archive" title="Internet Archive">Internet Archive</a>., IAU, Prague 2006</span> </li> <li id="cite_note-4"><a href="#cite_ref-4"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?1990MNRAS.247..624A&db_key=AST&nosetcookie=1">A study of the Chamaeleon I dark cloud and T-association. II - High-resolution IRAS maps around HD 97048 and 97300</a>, Assendorp, R.; Wesselius, P. R.; Prusti, T.; Whittet, D. C. B., 1990</span> </li> <li id="cite_note-5"><a href="#cite_ref-5"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://ulisse.pd.astro.it/Astro/ADPS/Systems/Sys_093/index_093.html">ADPS</a></span> </li> <li id="cite_note-6"><a href="#cite_ref-6"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://ulisse.pd.astro.it/Astro/ADPS/Systems/Sys_032/index_032.html">ADPS</a></span> </li> <li id="cite_note-7"><a href="#cite_ref-7"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160304022558/http://astro.uchicago.edu/hawc/"><span style="font-style:italic;">HAWC</span></a>, su <span style="font-style:italic;">astro.uchicago.edu</span>. <small>URL consultato il 4 maggio 2019</small> <small>(archiviato dall'<abbr title="https://astro.uchicago.edu/hawc/">url originale</abbr> il 4 marzo 2016)</small>.</cite></span> </li> <li id="cite_note-8"><a href="#cite_ref-8"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://irtfweb.ifa.hawaii.edu/~nsfcam2/Welcome.html">NSFCAM</a></span> </li> <li id="cite_note-9"><a href="#cite_ref-9"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="https://heasarc.gsfc.nasa.gov/docs/integral/inthp_about.html">About INTEGRAL</a></span> </li> <li id="cite_note-10"><a href="#cite_ref-10"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.aanda.org/articles/aa/pdf/2006/08/aa0226-03.pdf">Calibration of the PRONAOS/SPM submillimeter photometer, F.Pajot et al. 2006</a></span> </li> <li id="cite_note-11"><a href="#cite_ref-11"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160303212443/http://heasarc.nasa.gov/W3Browse/all/msxpsc.html"><span style="font-style:italic;">MSXPSC - Midcourse Space Experiment (MSX) Point Source Catalog, V2.3</span></a>, su <span style="font-style:italic;">heasarc.nasa.gov</span>. <small>URL consultato il 4 maggio 2019</small> <small>(archiviato dall'<abbr title="https://heasarc.nasa.gov/W3Browse/all/msxpsc.html">url originale</abbr> il 3 marzo 2016)</small>.</cite></span> </li> <li id="cite_note-12"><a href="#cite_ref-12"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120210085041/http://xmm.esac.esa.int/sas/7.1.0/watchout/Evergreen_tips_and_tricks/uvflux.shtml"><span style="font-style:italic;">XMM-Newton SAS: Watchout Page</span></a>, su <span style="font-style:italic;">xmm.esac.esa.int</span>. <small>URL consultato il 30 novembre 2009</small> <small>(archiviato dall'<abbr title="http://xmm.esac.esa.int/sas/7.1.0/watchout/Evergreen_tips_and_tricks/uvflux.shtml">url originale</abbr> il 10 febbraio 2012)</small>.</cite></span> </li> <li id="cite_note-13"><a href="#cite_ref-13"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/astro-ph/0611367">The XMM-Newton Optical Monitor Survey of the Taurus Molecular Cloud</a>, M.Audard et al. 2006</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Bibliografia">Bibliografia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sistema_fotometrico&veaction=edit&section=4" title="Modifica la sezione Bibliografia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sistema_fotometrico&action=edit&section=4" title="Edit section's source code: Bibliografia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/w/index.php?title=Harold_Johnson_(astronomer)&action=edit&redlink=1" class="new" title="Harold Johnson (astronomer) (la pagina non esiste)">Johnson, H. L.</a>; <a href="/wiki/William_Wilson_Morgan" class="mw-redirect" title="William Wilson Morgan">Morgan, W. W.</a> (1953), <i>Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas</i>, The Astrophysical Journal, vol. 117, pp. 313–352 <a rel="nofollow" class="external autonumber" href="http://adsabs.harvard.edu/abs/1953ApJ...117..313J">[1]</a></li> <li><a rel="nofollow" class="external text" href="http://ulisse.pd.astro.it/Astro/ADPS/Systems/index.html">The Asiago Database on Photometric Systems</a></li> <li>Michael S. Bessell (2005), <i>STANDARD PHOTOMETRIC SYSTEMS</i>, Annual Reviews of Astronomy and Astrophysics vol. 43, pp. 293–336</li> <li><a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/2005A&A...434..987A">Infrared portrait of the nearby massive star-forming region IRAS 09002-4732</a>, Apai, D.; Linz, H.; Henning, Th.; Stecklum, B., 2005</li></ul> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Sistema_fotometrico&veaction=edit&section=5" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Sistema_fotometrico&action=edit&section=5" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Fotometria_(astronomia)" title="Fotometria (astronomia)">Fotometria (astronomia)</a></li></ul> <div class="noprint" style="width:100%; 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