Daftar bintang terbesar
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Di bawah ini adalah daftar bintang terbesar yang diketahui saat ini, diurutkan berdasarkan radius. Satuan pengukuran yang digunakan adalah jari-jari Matahari (kira-kira 695.700 km; 432.288 mi).
![](http://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Star-sizes.jpg/500px-Star-sizes.jpg)
Ketidakpastian besar tetap ada pada keanggotaan dan urutan daftar, terutama ketika mendapatkan berbagai parameter yang digunakan dalam penghitungan, seperti bintang luminositas dan suhu efektif. Seringkali jari-jari bintang hanya dapat dinyatakan sebagai rata-rata atau dalam rentang nilai yang besar. Nilai untuk radius bintang sangat bervariasi di berbagai sumber dan untuk metode observasi yang berbeda.
Diameter sudut banyak bintang dapat diukur secara langsung menggunakan interferometri bintang. Metode lain dapat menggunakan okultasi bulan atau dari biner gerhana, yang dapat digunakan untuk menguji metode tidak langsung untuk menemukan jari-jari bintang. Hanya beberapa bintang supergiant berguna yang dapat disembunyikan oleh Bulan, termasuk Antares A (Alpha Scorpii A). Contoh biner gerhana adalah Epsilon Aurigae (Almaaz), VV Cephei, dan V766 Centauri (HR 5171). Pengukuran diameter sudut bisa jadi tidak konsisten karena batas atmosfer yang sangat tipis (opasitas) berbeda-beda bergantung pada panjang gelombang cahaya di mana bintang diamati.
Daftar
Nama | Ukuran dalam satuan Radii Matahari
(Matahari = 1) |
Keterangan |
---|---|---|
Stephenson 2-18 | 2.150[1] | Bintang terbesar di jagat raya (sebelumnya UY Scuti) |
WOH G64 | 1.540[2] | |
KY Cygni | 1.420[3] | |
VY Canis Majoris | 1.420[4][5] | |
Mu Cephei | 1.259[6] – 1.420[3] | |
S Persei | 1.212[7] – 1.364[8] | |
V354 Cephei | 1.139[9] | |
V766 Centauri Aa | 1.060 — 1.160[10] | |
MY Cephei | 1.134[11] | |
VV Cephei A | 1.050[12]–1.900[13] | |
KW Sagittarii | 1.009 ± 142[14] | |
Betelgeuse (Alpha Orionis) | 950–1.000[15] atau 880–988[16] | bintang paling terang ke-10 di langit malam. |
RW Cephei | 900–1760[17] | |
UY Scuti | 755 | |
Antares (Alpha Scorpii) | 680[18] | bintang paling terang ke-15 di langit malam. |
S Pegasi | 580[19] | |
T Cephei | 540[20] | |
S Orionis | 530[21] | |
W Hydrae | 520[22] | |
R Cassiopeiae | 500[23] | |
V382 Carinae | 485[24] | Hypergiant paling terang di langit. |
Chi Cygni | 470[25] | |
V838 Monocerotis | 467[26] | |
Rho Cassiopeiae | 450 | |
Mira A (Omicron Ceti) | 400[27] | |
V509 Cassiopeiae | 400[28]–900[29] | |
S Doradus | 100–380[30] | |
HR Carinae | 350 | |
R Doradus | 298 ± 21[31] | |
Alpha Herculis (Ras Algethi) | 284 ± 60[32] | |
Eta Carinae | 240[33] (60 – 881)[34] | |
La Superba | 225 | |
Delta Canis Majoris (Wezen) | 215±66[35] | bintang paling terang ke-36 di langit malam. |
Epsilon Pegasi (Enif) | 211[36] | |
Deneb (Alpha Cygni) | 203 ± 17[37] | bintang paling terang ke-19 di langit malam. |
Zeta Aurigae | 200[38] | |
Epsilon Aurigae A | 143 – 358[39] | |
Epsilon Carinae | 153 | Bintang paling terang ke-39 di langit malam. |
LBV 1806-20 | 150 | |
Gamma Crucis (Gacrux) | 113[40] | |
Gamma Andromedae | 80 | |
Rigel (Beta Orionis) | 78.9[41] | Bintang paling terang ke-7 di langit malam. |
Alpha Leporis (Arneb) | 75 | |
Canopus (Alpha Carinae) | 73.3[42] | bintang paling terang ke-2 di langit malam. |
Alpha Persei (Mirfak) | 68[43] | bintang paling terang ke-35 di langit malam. |
Albireo (Beta Cygni Aa) | 62[44] | |
Zeta Geminorum (Mekbuda) | 65.24[45] | |
Alpha Hydrae (Alphard) | 50.5[46] | |
Aldebaran (Alpha Tauri) | 43[47] | Bintang paling terang ke-14 di langit malam. |
Beta Ursae Minoris (Kochab) | 41 | |
Polaris | 37.5[48] | |
Arcturus | 25.4[49] | Bintang paling terang ke-4 di langit malam. |
Zeta Orionis (Alnitak) | 20 | bintang paling terang ke-32 di langit malam. |
Mintaka (Delta Orionis) | 16.5[50] | |
Zeta Puppis (Naos) | 14 – 26[51] | |
Pollux | 9.06[52] | Bintang paling terang ke-17 di langit malam. |
Sirius A | 1.711[53] | Bintang paling terang di langit malam. |
Lihat pula
Referensi
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Pranala luar
- Giant Stars An interactive website comparing the Earth and the Sun to some of the largest known stars
- Lowell Observatory Astronomers Identify Largest Stars Known Diarsipkan 2005-01-19 di Wayback Machine.
- BBC News Three largest stars identified
- Star Size comparison movie
- Google Video Planets and stars drawn to scale Diarsipkan 2009-01-07 di Wayback Machine.
- Universe Today What is the Biggest Star in the Universe?