Bintang deret utama tipe-G: Perbedaan antara revisi
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[[Berkas:Sun_white.jpg|jmpl|250px|Matahari, salah satu contoh deret utama tipe-G.]]
{| class="wikitable floatright" style="text-align:center; font-size:smaller;"
|+ Properties of typical G-type main-sequence stars<ref>{{citation
| display-authors=1 | first1=Ilias M. | last1=Vardavas
| first2=Ilias | last2=Vardavas | first3=Frederic | last3=Taylor
| title=Radiation and Climate: Atmospheric Energy Budget from Satellite Remote Sensing
| chapter=Chapter 5. Incoming Solar Radiation
| series=International Series of Monographs on Physics | volume=138
| page=130 | publisher=[[OUP Oxford]] | year=2011 | isbn=0199697140
| url=https://books.google.com/books?id=GnJ0LJFLNbMC&pg=PA130
}}</ref>
|-
![[Spectral type|Spectral<br>type]]
![[Stellar mass|Mass]] ({{Solar mass|link=y}})
![[Surface gravity|Surface<br>gravity]]<br>(log ''g'')
![[Effective temperature|Effective<br>temperature]]<br>(K)
![[Color index|Color<br>index]]<br>{{nowrap|(B − V)}}
|-
| G0V || 1.15 || 4.32 || 5,980 || 0.583
|-
| G1V || 1.10 || 4.34 || 5,900 || 0.608
|-
| G2V || 1.07 || 4.35 || 5,800 || 0.625
|-
| G3V || 1.04 || 4.37 || 5,710 || 0.642
|-
| G4V <ref group=note>The Sun is not in this class because even though it corresponds to the same mass, the Sun is slightly hotter than the typical temperature for a G4V star (at 5,778 K), so it is a G2V star, which is normally slightly more massive than the Sun</ref> || 1.00 || 4.38 || 5,690 || 0.657
|-
| G5V|| 0.98 || 4.40 || 5,620 || 0.672
|-
| G6V || 0.93 || 4.42 || 5,570 || 0.690
|-
| G7V || 0.90 || 4.44 || 5,500 || 0.713
|-
| G8V || 0.87 || 4.46 || 5,450 || 0.740
|-
| G9V || 0.84 || 4.48 || 5,370 || 0.776
|}
'''Bintang deret utama tipe-G''' (tipe spektrum: GV), sering disebut '''Katai Kuning''', atau '''bintang katai G''', adalah [[bintang]] [[deret utama]] (luminositas kelas V) dari tipe [[spektrum]] G. bintang tersebut memiliki [[Massa matahari|massa]] 0,84-1,15 matahari dan [[Suhu efektif|suhu permukaan]] berkisar 5.300 hingga 6.000 K.<ref>{{Cite book|last=Gray|first=Richard|url=http://dx.doi.org/10.1888/0333750888/1891|title=The Encyclopedia of Astronomy and Astrophysics|publisher=IOP Publishing Ltd|isbn=0-333-75088-8}}</ref> Seperti bintang deret utama lainnya, bintang deret utama tipe G meleburkan [[Hidrogen|unsur hidrogen]] menjadi helium di intinya melalui [[fusi nuklir]].<ref>{{Cite book|last=Iben|first=Icko|url=http://dx.doi.org/10.1017/cbo9781139061223.010|title=Stellar Evolution Physics|location=Cambridge|publisher=Cambridge University Press|isbn=978-1-139-06122-3|pages=529–636}}</ref> Matahari, bintang yang mengikat gravitasi [[Bumi]] di Tata Surya, adalah contoh bintang deret utama tipe-G (tipe G2V). Setiap detik, Matahari menggabungkan sekitar 600 juta ton [[hidrogen]] menjadi [[helium]] dalam proses yang dikenal sebagai [[Reaksi rantai proton-proton|rantai proton-proton]] (4 hidrogen membentuk 1 helium), proses yang mengubah sekitar 4 juta ton materi menjadi energi.<ref>{{Cite book|date=2002-05-02|url=http://dx.doi.org/10.1017/cbo9780511536588.003|title=The Bigger Bang|publisher=Cambridge University Press|isbn=978-0-521-01273-7|pages=8–17}}</ref><ref>{{Cite journal|date=2007-06-15|title=NETWATCH: Botany's Wayback Machine|url=http://dx.doi.org/10.1126/science.316.5831.1547d|journal=Science|volume=316|issue=5831|pages=1547d–1547d|doi=10.1126/science.316.5831.1547d|issn=0036-8075}}</ref> Selain Matahari, contoh terkenal lainnya dari bintang deret utama tipe-G adalah [[Alpha Centauri|Alpha Centauri A]], [[Tau Ceti]], dan [[51 Pegasi]].<ref>{{Cite journal|date=2007-03|title=Articles Accessed in December 2006|url=http://dx.doi.org/10.1097/00006250-200703000-00001|journal=Obstetrics & Gynecology|volume=109|issue=3|pages=577|doi=10.1097/00006250-200703000-00001|issn=0029-7844}}</ref><ref>{{Cite journal|date=2007-03|title=Articles Accessed in December 2006|url=http://dx.doi.org/10.1097/00006250-200703000-00001|journal=Obstetrics & Gynecology|volume=109|issue=3|pages=577|doi=10.1097/00006250-200703000-00001|issn=0029-7844}}</ref><ref>{{Cite journal|last=Jaton|first=J. C.|last2=Huser|first2=H.|last3=Braun|first3=D. G.|last4=Givol|first4=D.|last5=Pecht|first5=I.|last6=Schlessinger|first6=J.|date=1975-12-02|title=Conformational changes induced in a homogeneous anti-type III pneumococcal antibody by oligosaccharides of increasing size|url=https://www.ncbi.nlm.nih.gov/pubmed/51|journal=Biochemistry|volume=14|issue=24|pages=5312–5315|doi=10.1021/bi00695a014|issn=0006-2960|pmid=51}}</ref>
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