கெல்ட் - 20
{{Starbox begin
 |name=KELT-20}}
 {{Starbox observe
 |epoch=[[J2000.0]]
 |constell=[[Cygnus (constellation)|Cygnus]]
 |ra={{RA|19|38|38.735}}&lt;ref name=dr3/&gt;
 |dec={{DEC|+31|31|09.22}}&lt;ref name=dr3/&gt;
 |appmag_v=7.58&lt;ref name=tycho2&gt;{{Cite journal |bibcode=2000A&amp;A...355L..27H |title=The Tycho-2 catalogue of the 2.5{{nbsp}}million brightest stars |journal=Astronomy and Astrophysics |volume=355 |pages=L27 |last1=Høg |first1=E. |last2=Fabricius |first2=C. |last3=Makarov |first3=V. V. |last4=Urban |first4=S. |last5=Corbin |first5=T. |last6=Wycoff |first6=G. |last7=Bastian |first7=U. |last8=Schwekendiek |first8=P. |last9=Wicenec |first9=A. |date=2000 |doi=10.1888/0333750888/2862|isbn=978-0333750889 }}&lt;/ref&gt;
 }}
 {{Starbox character
 |class=A2V&lt;ref&gt;{{cite journal |bibcode=2017AJ....154..194L |title=KELT-20b: A Giant Planet with a Period of P ∼ 3.5 days Transiting the V ∼ 7.6 Early a Star HD 185603 |last1=Lund |first1=Michael B. |last2=Rodriguez |first2=Joseph E. |last3=Zhou |first3=George |last4=Gaudi |first4=B. Scott |last5=Stassun |first5=Keivan G. |last6=Johnson |first6=Marshall C. |last7=Bieryla |first7=Allyson |last8=Oelkers |first8=Ryan J. |last9=Stevens |first9=Daniel J. |last10=Collins |first10=Karen A. |last11=Penev |first11=Kaloyan |last12=Quinn |first12=Samuel N. |last13=Latham |first13=David W. |author14=Villanueva, Steven, Jr. |last15=Eastman |first15=Jason D. |last16=Kielkopf |first16=John F. |last17=Oberst |first17=Thomas E. |last18=Jensen |first18=Eric L. N. |last19=Cohen |first19=David H. |last20=Joner |first20=Michael D. |last21=Stephens |first21=Denise C. |last22=Relles |first22=Howard |last23=Corfini |first23=Giorgio |last24=Gregorio |first24=Joao |last25=Zambelli |first25=Roberto |last26=Esquerdo |first26=Gilbert A. |last27=Calkins |first27=Michael L. |last28=Berlind |first28=Perry |last29=Ciardi |first29=David R. |last30=Dressing |first30=Courtney |journal=The Astronomical Journal |date=2017 |volume=154 |issue=5 |page=194 |doi=10.3847/1538-3881/aa8f95 |arxiv=1707.01518 |display-authors=1 |doi-access=free }}&lt;/ref&gt;
 |type=[[main sequence star]]
 |variable=[[planetary transit]]
 }}
 {{Starbox astrometry
 |parallax=7.3015
 |p_error=0.0433
 |parallax_footnote=&lt;ref name=dr3&gt;{{cite Gaia DR3|2033123654092592384}}&lt;/ref&gt;
 |prop_mo_ra={{val|3.096|0.068}}
 |prop_mo_dec={{val|-6.157|0.075}}
 |pm_footnote=&lt;ref name=dr3/&gt;
 }}
 {{Starbox detail
 |source=
 |mass=2.3&lt;ref name=ticv8&gt;{{cite journal | display-authors = 1 | last1 = Stassun | first1 = Keivan G. | last2 = Oelkers | first2 = Ryan J. | last3 = Paegert | first3 = Martin | last4 = Torres | first4 = Guillermo | last5 = Pepper | first5 = Joshua | last6 = Lee | first6 = Nathan De | last7 = Collins | first7 = Kevin | last8 = Latham | first8 = David W. | last9 = Muirhead | first9 = Philip S. | last10 = Chittidi | first10 = Jay | last11 = Rojas-Ayala | first11 = Bárbara | last12 = Fleming | first12 = Scott W. | last13 = Rose | first13 = Mark E. | last14 = Tenenbaum | first14 = Peter | last15 = Ting | first15 = Eric B. | last16 = Kane | first16 = Stephen R. | last17 = Barclay | first17 = Thomas | last18 = Bean | first18 = Jacob L. | last19 = Brassuer | first19 = C. E. | last20 = Charbonneau | first20 = David | last21 = Ge | first21 = Jian | last22 = Lissauer | first22 = Jack J. | last23 = Mann | first23 = Andrew W. | last24 = McLean | first24 = Brian | last25 = Mullally | first25 = Susan | last26 = Narita | first26 = Norio | last27 = Plavchan | first27 = Peter | last28 = Ricker | first28 = George R. | last29 = Sasselov | first29 = Dimitar | last30 = Seager | first30 = S. | last31 = Sharma | first31 = Sanjib | last32 = Shiao | first32 = Bernie | last33 = Sozzetti | first33 = Alessandro | last34 = Stello | first34 = Dennis | last35 = Vanderspek | first35 = Roland | last36 = Wallace | first36 = Geoff | last37 = Winn | first37 = Joshua N. | title = The Revised ''TESS'' Input Catalog and Candidate Target List | journal = The Astronomical Journal | date = 9 September 2019 | volume = 158 | issue = 4 | page = 138 | eissn = 1538-3881 | doi = 10.3847/1538-3881/ab3467 | bibcode = 2019AJ....158..138S | arxiv = 1905.10694 | doi-access = free}}&lt;/ref&gt;
 |radius=1.6&lt;ref name=ticv8/&gt;
 |luminosity=15.7&lt;ref name=ticv8/&gt;
 |temperature=9,032&lt;ref name=ticv8/&gt;
 |gravity=4.38&lt;ref name=ticv8/&gt;
 |metal_fe={{val|-0.02|0.07}}&lt;ref name=talens2018&gt;{{cite journal |bibcode=2018A&amp;A...612A..57T |title=MASCARA-2 b. A hot Jupiter transiting the m&lt;SUB&gt;V&lt;/SUB&gt; = 7.6 A-star HD 185603 |last1=Talens |first1=G. J. J. |last2=Justesen |first2=A. B. |last3=Albrecht |first3=S. |last4=McCormac |first4=J. |last5=Van Eylen |first5=V. |last6=Otten |first6=G. P. P. L. |last7=Murgas |first7=F. |last8=Palle |first8=E. |last9=Pollacco |first9=D. |last10=Stuik |first10=R. |last11=Spronck |first11=J. F. P. |last12=Lesage |first12=A. -L. |last13=Grundahl |first13=F. |last14=Fredslund Andersen |first14=M. |last15=Antoci |first15=V. |last16=Snellen |first16=I. A. G. |journal=Astronomy and Astrophysics |date=2018 |volume=612 |doi=10.1051/0004-6361/201731512 |arxiv=1707.01500 |s2cid=119422884 }}&lt;/ref&gt;
 |age_gyr=0.200&lt;ref name=talens2018/&gt;
 }}
 {{starbox catalog
 |names={{odlist|HD=185603|HIP=96618}}, [[MASCARA]]-2, KELT-20
 }}
 {{Starbox reference
 |Simbad=HD+185603
 }}
 {{Starbox end}}
 
 '''கெல்ட் - 20''' என்பது 447 [[ஒளியாண்டு|ஒளி ஆண்டுகள்]] தொலைவில் உள்ள [[சிக்னசு (விண்மீன் குழாம்)|சிக்னஸ்]] விண்மீன் குழுவில் உள்ள ஒரு ஏ 2 முக்கிய வரிசை விண்மீனாகும். இது மாசுக்காரா - 2 என்றும் அழைக்கப்படும் 
 
 == பெயரிடல் ==
 கெல்ட் - 20 என்பது  [[கிலோ பாகை மிகச் சிறிய தொலைநோக்கி|ஒரு விண்மீனின்]] பெயராகும். இது மாசுக்காரா - 2 என்றும் அழைக்கப்படுகிறது , இது மாசுக்காரா  புறக்கோள் தேடல் திட்டத்தால் காணப்பட்ட இரண்டாவது விண்மீன் ஆகும். இதன்  என்றி திரேப்பர் பட்டிடல் பெயர் எச்டி 185603 ,  ஆகும்.  இதன் கிப்பார்காசு பெயர் எச்ஐபி 96618 ஆகும்.
 
 == கோள் அமைப்பு ==
 கெல்ட் - 20ளெனும் கோள்  2017 ஆம் ஆண்டில் கண்டுபிடிக்கப்பட்டமை அறிவிக்கப்பட்டது.&lt;ref&gt;{{Citation|arxiv=2208.04759|year=2023|title=Unifying High- and Low-resolution Observations to Constrain the Dayside Atmosphere of KELT-20b/MASCARA-2b|doi=10.3847/1538-3881/ac9f40|last=Kasper|first=David|last2=Bean|first2=Jacob L.|last3=Line|first3=Michael R.|last4=Seifahrt|first4=Andreas|last5=Brady|first5=Madison T.|last6=Lothringer|first6=Joshua|last7=Pino|first7=Lorenzo|last8=Fu|first8=Guangwei|last9=Pelletier|first9=Stefan|website=The Astronomical Journal|volume=165|number=1|page=7|bibcode=2023AJ....165....7K}}&lt;/ref&gt;&lt;ref&gt;{{Citation|arxiv=2201.02261|year=2022|title=Strong H&lt;sub&gt;2&lt;/sub&gt;O and CO Emission Features in the Spectrum of KELT-20b Driven by Stellar UV Irradiation|doi=10.3847/2041-8213/ac4968|last=Fu|first=Guangwei|last2=Sing|first2=David K.|last3=Lothringer|first3=Joshua D.|last4=Deming|first4=Drake|last5=Ih|first5=Jegug|last6=Kempton|first6=Eliza M. -R.|last7=Malik|first7=Matej|last8=Komacek|first8=Thaddeus D.|last9=Mansfield|first9=Megan|website=The Astrophysical Journal Letters|volume=925|number=1|pages=L3|bibcode=2022ApJ...925L...3F}}&lt;/ref&gt;&lt;ref&gt;{{Citation|arxiv=2201.08759|year=2022|title=Detection of iron emission lines and a temperature inversion on the dayside of the ultra-hot Jupiter KELT-20b|doi=10.1051/0004-6361/202142395|last=Yan|first=F.|last2=Reiners|first2=A.|last3=Pallé|first3=E.|last4=Shulyak|first4=D.|last5=Stangret|first5=M.|last6=Molaverdikhani|first6=K.|last7=Nortmann|first7=L.|last8=Mollière|first8=P.|last9=Henning|first9=Th.|website=Astronomy &amp; Astrophysics|volume=659|pages=A7|bibcode=2022A&amp;A...659A...7Y}}&lt;/ref&gt;
 
 == மேற்கோள்கள் ==
 {{reflist}}
 
 
 [[பகுப்பு:சிக்னசு (விண்மீன் குழாம்)]]