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Draft:List of nearest stars by spectral type

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Below there are lists the nearest stars separated by spectral type. The scope of the list is still restricted to the main sequence spectral types: M, K, F, G, A, B and O. It may be later expanded to other types, such as S, D or C.

The Alpha Centauri star system is the closest star system to the Sun.

List of nearest M-type stars[edit]

This is a list of M-type stars within 13 light years.

Proxima Centauri is the closest M-type star to the Earth.
Name Distance (ly) Spectral type Stellar radius (R) Stellar mass (M) Apparent magnitude (V) Absolute magnitude (V) Notes
Proxima Centauri 4.24[1] M5.5Ve[1] 0.1542 ± 0.0045[2] 0.1221 ± 0.0022[2] 10.43 – 11.1[3] 15.6[4] Also the nearest star to the Solar System.
Barnard's Star 5.96[5] M4.0V[6] 0.187 ± 0.001[7] 0.161[7] 9.511[8] 13.21[8] Also the second-nearest stellar system to the Solar System.
Wolf 359 7.856±0.001[5] M6V[9] 0.144 ± 0.004[7] 0.11 ± 0.003[7] 13.507[10] 16.614[11] Also the fourth-nearest stellar system to the Solar System.
Lalande 21185 8.034[12] M2V[13] 0.392 ± 0.004[7] 0.389 ± 0.008[7] 7.52[14] 10.48[15] Also the fifth-nearest stellar system to our Solar System.
Luyten 726-8 B 8.77±0.01[16] M6V[17] 0.159 ± 0.006[18] 0.1195 ± 0.0043[18] 12.8[11] 15.7[11] Also known as UV Ceti.
A M5.5V[17] 0.165 ± 0.006[18] 0.1225 ± 0.0043[18] The archetype of the flare stars. Also known as BL Ceti
Ross 154 9.706[5] M3.5V[19] 0.200 ± 0.008[7] 0.177 ± 0.004[7] 10.44[19] 13.07[19]
Ross 248 10.306[20] M6V[21] 0.19[22] 0.145[22] 12.23 – 12.34[19] 14.79[23]
Lacaille 9352 10.74[12] M0.5V[24] 0.474 ± 0.008[7] 0.479+0.011
−0.010
[7]
7.34[25] 9.8[26]
Ross 128 11.007±0.001[5] M4V[27] 0.198 ± 0.007[7] 0.176 ± 0.004[7] 11.13[19] 13.53[19]
EZ Aquarii A 11.11[28] M5V[19] 0.175[29] 0.1187 ± 0.0011[28] 13.03[19] 15.33[19]
B 0.21 ± 0.04[28] 0.1145 ± 0.0012[28] 13.27[19] 15.58[19]
C 0.093[28] 12.38[19] 17.37[19]
Struve 2398 A 11.4908[5] M3V[22] 0.354 ± 0.003[7] 0.336 ± 0.007[7] 8.94
B 11.491[5] M3.5V[22] 0.273 ± 0.011[22] 0.248 ± 0.235[22] 9.7[30]
Groombridge 34 A 11.6191±0.0008[5] M1.4V[22] 0.385 ± 0.002[22] 0.393+0.009
−0.008
[22]
8.119[22]
B 11.62[5] M4.1V[22] 0.18 ± 0.03[31] 0.15 ± 0.02[31] 11.007[22]
DX Cancri 11.68[5] M6.5V[32] 0.11[33] 0.09[34] 14.81[35] 16.98[19]
GJ 1061 11.984[36] M5.5V[36] 0.152 ± 0.007[7] 0.125 ± 0.003[7] 13.03[36] 15.26[37]
YZ Ceti 12.122±0.002[5] M4Ve 0.168 ± 0.009[30] 0.13 ± 0.013[38] 12.03 – 12.18[39] 14.3[40]
Luyten's Star 12.348±0.002[5] M3.5V[19] 0.293 ± 0.007[41] 0.29[41] 0.987[42] 11.94[42]
Teegarden's Star 12.497±0.004[43] M7V[40] 0.107 ± 0.004[44] 0.093 ± 0.003[44] 15.13[45] 17.2[46]
Kapteyn's Star 12.83 [47] M1.5V[48][24] or sdM1[8] 0.291 ± 0.025[48] 0.281 ± 0.014[48] 8.853 ± 0.008[48] 10.89[8]
Lacaille 8760 12.947[5] M0Ve[49] 0.51[50] 0.6[19] 6.67[19] 8.69[19] Brightest red dwarf in the sky.

List of nearest K-type stars[edit]

This is a list of K-type stars within 30 light years.

Alpha Centauri B is the closest K-type star to the Earth.
Name Distance (ly) Spectral type Stellar radius (R) Stellar mass (M) Apparent magnitude (V) Absolute magnitude (V) Notes
Alpha Centauri B (Toliman) 4.344 K1V[51] 0.8591 ± 0.0036[52] 0.9092 ± 0.0025[52] 1.33[53] 5.71[54] Also the 2nd/3rd nearest individual star to the Solar System. Named Toliman.
Epsilon Eridani (Ran) 10.475 K2V[55] 0.735 ± 0.005[24] 0.82 ± 0.02[56][57] 3.736[58] 6.19[19] Also the tenth-nearest star system to our Solar System. Has one confirmed exoplanet
61 Cygni A 11.404 K5V[59] 0.665 ± 0.005[60] 0.7[61] 5.21[62] 7.506[63] The first star to have its distance to Earth measured after the Sun. Also the 15th nearest stellar system to our solar system.
B K7V[59] 0.595 ± 0.008[60] 0.63[61] 6.05[64] 8.228[63]
Epsilon Indi A 11.867 K5V[24] 0.711 ± 0.005[65] 0.754 ± 0.038[22] 4.83[12] 6.89[66] Also the 19th nearest star system to our Solar System. Has one confirmed exoplanet and 2 brown dwarfs.
Groombridge 1618 15.886 K7.5Ve[67] 0.605 ± 0.02[68] 0.67 ± 0.033[68] 6.6[69] 8.11[70]
40 Eridani A 16.33[5] K0.5V[55] 0.812 ± 0.017[71] 0.78 ± 0.08[71] 4.43[12] 5.93[70] Part of a triple star system
70 Ophiuchi A 16.68 K0V[72] 0.91 ± 0.03[72] 0.9 ± 0.03[73] 4.13[74] 5.49[70]
B 16.707 K4V[72] 0.7 ± 0.07[73] 6.07[74]
Sigma Draconis (Alsafi) 18.799 K0V[75] 0.776 ± 0.008[76] 0.85+0.01
−0.03
[77]
4.674[78] 5.89[79]
Gliese 570 A 19.199[80] K4V[80] 0.739 ± 0.019[24] 0.82 ± 0.04[24] 5.7[80] 6.89[70] Part of a quadruple star system
Eta Cassiopeiae B 19.42[12] K7V[73] 0.66[15] 0.57[73] 7.51[73] Part of a binary star system
36 Ophiuchi A 19.41 K2V[81] 0.817 ± 0.016[24] 0.85 5.08[81] Also known as Guniibuu
B K1V[81] 0.81 5.03[81]
C 19.418±0.004 K5V[81] 0.72 0.71 6.34[81]
HR 7703 A 19.61 K2.5V[55] 0.66[82] 0.65[82] 5.31[83] 6.53[84] Part of a binary system
ADS 7251 B 20.658±0.003 K7V[17] 0.58 ± 0.03[85] 0.64 ± 0.07[85] 7.7[24] Part of a binary star system
HD 219134 21.336 K3V[86] 0.778 ± 0.005[87] 0.81 ± 0.03[87] 5.574[78] 6.46[70] Has six known exoplanets
Xi Boötis B 23.011±0.008 K4Ve[88] 0.61[89] 0.66 ± 0.07[89] 6.8[88] Part of a binary star system
268 G. Ceti A 23.58 K3V[90] 0.65 ± 0.053[90] 0.7 ± 0.1[91] 5.83[90] 6.5[92] Part of a trinary stellar system also known as Gliese 105
Gliese 667 A 23.623±0.005 K3V[93][94] 0.76[93] 0.73[95] 5.91[93] Part of a triple star system
B K5V[93][94] 0.7[93] 0.69[95] 7.2[93]
HD 4628 24.25±0.01[96] K2.5V[55] 0.749 ± 0.051[90] 0.7 ± 0.1[97] 5.74[98] 6.37[70]
TW Piscis Austrini 24.793±0.005 K5Vp[55] 0.629 ± 0.051[24] 0.725 ± 0.036[24] 5.44 – 6.51[99] 7.08[100] Also known as Fomalhaut B. Part of a triple star system
107 Piscium 24.8±0.03[96] K1V[75] 0.82 ± 0.03[101] 0.86[101] 5.14 — 5.26[102] 5.87[103]
Gliese 673 25.157±0.003 K7V[8] 0.564[90] 7.492[8] 8.83[8]
p Eridani A 26.710±0.008 K2V[55] 0.75[5] 0.78[104] 5.76[105] 6.25[70]
B 26.733±0.007 0.77[5] 0.77[104] 5.87[105] 6.27[70]
Gliese 884 26.85[106] K7V[106] 0.67[106] 0.63[106] 7.9[106]
Chi Draconis B 27.17±0.03 K0V[28] 0.73 ± 0.11[28] 0.748 ± 0.017[28] 3.57 (combined)[107] Part of a binary star system
HR 1614 28.4±0.1[12] K3V[108] 0.78+0.03
−0.02
[50]
0.838+0.034
−0.033
[50]
6.208[108]
HD 50281 28.54±0.01 K3.5V[109] 0.73+0.01
−0.02
[96]
0.79[110] 6.58[111]
HD 192310 28.74±0.01 K2+ V[112] 0.79 – 0.85[93] 0.78 ± 0.04[113] 5.73[112]
AK Leporis 29±0.004 K2V[114] 0.8[5] 6.141[115]
Delta Eridani (Rana) 29.49±0.08[12] K0 IV[116] 2.327 ± 0.029[72] 1.33 ± 0.07[72] 3.51 – 3.56[3]

List of nearest G-type stars[edit]

This is a list of G-type stars within 40 light years.

The Sun is the closest G-type star to the Earth.
Name Distance (ly) Spectral type Stellar radius (R) Stellar mass (M) Apparent magnitude (V) Absolute magnitude (V) Notes
Sun 1.58 × 10-5 (149,600,000 km) G2V -26.74[117] 4.83[117] The star at the centre of the Solar System.
Alpha Centauri A (Rigil Kentaurus) 4.344±0.002 G2V[51] 1.2175 ± 0.0055[52] 1.0788 ± 0.0029[52] 0.01[53] 4.38[54] It is the 2nd/3rd nearest individual star to the Solar System, and the fourth-brightest individual star in the night sky. Has one candidate exoplanet.
Tau Ceti 11.912±0.007 G8V[75] 0.793 ± 0.004[118] 0.783 ± 0.012[118] 3.5[118] 5.68[118] Also the 20nd nearest star system to the Solar System. Has one confirmed exoplanet.
Eta Cassiopeiae A (Achird) 19.42[12] G0V[119] 1.0386 ± 0.0038[120] 0.972 ± 0.012[76] 3.44[112] 4.57[70] Part of a binary star system
82 G. Eridani 19.704±0.009 G6V[75] 0.92[15] 0.7[121] 4.254 5.34[70] Has two confirmed exoplanets and one unconfirmed
Delta Pavonis 19.89[5] G8 IV[55] 1.197 ± 0.016[65] 1.051 ± 0.062[122] 3.56[123] 4.62[70] The nearest undisputed subgiant.
Xi Boötis A 22.027[124] G8Ve[124] 0.817 ± 0.007[89] 0.88 ± 0.03[89] 4.7[124] 5.54[125] Part of a binary star system
Beta Hydri 24.33[12] G2 IV[126] 1.809 ± 0.015[127] 1.08 ± 0.03[126] 2.8[112] 3.45[128]
Mu Cassiopeiae Aa (Marfak) 25.03±0.08 G5Vb[75] 0.789 ± 0.008[129] 0.744 ± 0.0122[129] 5.14[130] 5.78[131] Part of a binary star system
Mu Herculis Aa 27.11±0.04 G5IV[132] 1.73 ± 0.02[133] 1.11 ± 0.01[133] 3.417[12] 3.82[133] Part of a quadruple star system
Chara 27.63±0.04[5] G0V[134] 1.123 ± 0.028[76] 0.97 ± 0.04[134] 4.25[134] 4.64[70]
61 Virginis 27.84±0.03 G7V[109] 0.9867 ± 0.0048[135] 0.93[135] 4.74 5.07[70] Has three confirmed exoplanets
Chi1 Orionis A 28.26±0.07 G0V[75] 0.979 ± 0.009[76] 1.01[136] 4.38 – 4.41[137] 4.82[125]
41 G. Arae A 28.67±0.02 G8V[138] 0.79[50] 0.81[50] 5.61 5.74[70] Part of a binary star system
Xi Ursae Majoris Ba 29 G2V[75] 0.92 ± 0.04[139] 0.86[139] 4.264[140] 4.66[a] Part of a quadruple star system
Groombridge 1830 (Argelander's Star) 29.93[96] G8VIp[141] 0.681 ± 0.006[76] 0.661[50] 6.44[69] 6.64[70]
Beta Comae Berenices 29.95±0.1 G0V[142] 1.106 ± 0.011[76] 1.15[50] 4.26[112] 4.46[70]
HD 102365 A 30.4±0.02 G2V[55] 0.96[50] 0.889[50] 4.88[83] 5.07[70] Part of a binary star system
61 Ursae Majoris 31.24±0.04[96] G8V[143] 0.86 ± 0.02[144] 0.93 ± 0.02[145] 5.35[146] 5.53[125]
Alpha Mensae A 33.31±0.02 G7V[55] 0.96 ± 0.013[147] 0.964 ± 0.037[147] 5.09 5.03[70] Part of a binary star system
Iota Persei 34.38±0.08[12] G0V[75] or F9.5V[55] 1.412 ± 0.009[76] 1.35 ± 0.08[148] 4.062[149] 3.94[70]
Zeta Herculis A 35±0.2[12] G7V[132] 0.915 – 0.92[150] 0.98 ± 0.02[150] 2.81 (combined)[112] 2.65 (combined)[151] Part of a binary star system
Delta Trianguli A 35.2±0.1 G0V[152] 0.98[93] 1[153] 4.865[70] 4.69[70] Part of a binary star system
11 Leonis Minoris A 36.54±0.08 G8V[154] 1.0029 ± 0.0158[120] 0.964[120] 5.54[155] 5.25[125] Part of a binary star system
Eta Boötis A (Muphrid) 37.2±0.5[12] G0IV[156] 2.672 ± 0.028[157] 1.71 ± 0.05[157] 2.68[70] 2.41[107] Part of a binary star system
Lambda Serpentis 38.87±0.07[5] G0V[158] 1.06 ± 0.152[90] 1.14[148] 4.43[159] 4.01[70]
Zeta Reticuli A 39.27±0.03 G3-5V[160] 0.92[50] 0.958[50] 5.52[83] 5.11[70]
B 39.29±0.09 G2V[160] 0.99[50] 0.985[50] 5.22[83] 4.83[70]
85 Pegasi A 39.5±0.4[161] G5Vb 0.91 0.88 5.75 5.32[70] Part of a binary star system

List of nearest F-type stars[edit]

This is a list of F-type stars within 45 light years.

Procyon A is the closest F-type star to the Earth.
Name Distance (ly) Spectral type Stellar radius (R) Stellar mass (M) Apparent magnitude (V) Absolute magnitude (V) Notes
Procyon A 11.46±0.05[12] F5IV-V[162] 2.048 ± 0.025[162] 1.499 ± 0.031[163] 0.34[162] 2.66[23] Part of a binary star system. Eight-brightest star in the night sky.
Pi3 Orionis (Tabit) 26.32±0.04[12] F6V[141] 1.323 ± 0.004[76] 1.236[50] 3.16[141] 3.65[70]
Chi Draconis A 27.17±0.03[12] F7V[28] 1.2 ± 0.09[28] 1.029 ± 0.06[28] 3.57[107] 4.04[107] Part of a binary system
Zeta Tucanae 28.01±0.04[12] F9.5V[55] 1.08 ± 0.08[82] 0.99 ± 0.02[113] 4.23 4.67[125]
Xi Ursae Majoris A (Alula Australis) 28.5±0.1[5] F8.5:V[75] 1.02 ± 0.04[101] 0.97[101] 4.264[140] 4.66[b] Part of a five-star system
Gamma Leporis 29.12±0.05 F6V[164] 1.33 ± 0.04[165] 1.23 ± 0.05[165] 3.587[166] 3.84[70]
Gamma Pavonis 30.21±0.05[12] F9 V Fe-1.4 CH-0.7[55] 1.15 ± 0.04[72] 1.21 ± 0.12[72] 4.22[167] 4.40[70]
Zeta Herculis A 35±0.2[12] F9IV[132] 2.56 – 2.61[168] 1.45 ± 0.1[168] 2.81[112] 2.65[169]
Beta Virginis (Zavijava) 35.65±0.09[12] F9V[170] 1.681 ± 0.008[76] 1.413 ± 0.061[171] 3.604[172] 3.41[70]
Theta Persei A 36.29±0.09[12] F8V[173] 1.319 ± 0.011[76] 1.138 ± 0.01[76] 4.11[90] 3.88[70]
Gamma Serpentis 36.7±0.07[12] F6V[174] 1.55 ± 0.05[72] 1.3 ± 0.15[72] 3.85[174] 3.60[70]
Zeta Doradus A 37.91±0.07[12] F7V 1.07+0.02
−0.07
[175]
1.07[176] 4.8191[12] 4.38[177]
Gamma Virginis (Porrima) A 38.1±0.3[12] F0V[178] 1.56[179] 3.4[179] 3[179]
B 1.5[179] 3.5[179] 3.1[179]
Iota Pegasi A 38.5±0.2[12] F5V 1.526 ± 0.068 1.33 3.84 3.49
Zeta Trianguli Australis A 39.5±0.2[12] F9V[55] 1.12[180] 4.90[98] 4.49[70] Part of a binary star system
Beta Trianguli Australis 40.37±0.08[12] F1V[55] 1.976 ± 0.021[65] 1.56[181] 2.85[182] 2.37[111]
Theta Ursae Majoris 43.96±0.08[12] F6IV 2.365 ± 0.008 1.41 3.166 2.43
Upsilon Andromedae A (Titawin) 44±0.1[12] F8V 1.48 ± 0.087 1.27 ± 0.06 4.10 3.44

List of nearest A-type stars[edit]

This is a list of A-type stars within 60 light years.

Sirius A is the closest A-type star to the Earth.
Name Distance (ly) Spectral type Stellar radius (R) Stellar mass (M) Apparent magnitude (V) Absolute magnitude (V) Notes
Sirius A 8.6±0.04 A0mA1Va[109] 1.711[183] 2.063 ± 0.023[184] -1.46 [185] 1.43[186] Also the sixth-nearest stellar system to the Solar System and the brightest star in the night sky.
Altair 16.7[187] A7Vn[109] 2.01 – 1.57[188] 1.86 ± 0.03[188] 0.76[53] 2.22[189] 12th brightest star in the night sky.
Vega 25.04±0.07 A0Va[109] 2.818 – 2.362[190] 2.135 ± 0.074[190] 0.026[191] 0.582[192] Fifth-brightest star in the night sky.
Fomalhaut A 25.13±0.09[193] A3V[24] 1.842 ± 0.019[100] 1.92 ± 0.02[100] 1.16[53] 1.72[100] 18th brightest star in the night sky. Part of a triple star system.
Denebola 35.9±0.2[12] A3Va[109] 1.728[194] 1.78[194] 2.14[195] 1.93[111]
Delta Capricorni (Deneb Algedi) 38.7±0.09 A7m III[196] 1.91[197] 2[197] 2.81[196] 2.48[111] Part of a binary star system
Iota Ursae Majoris A (Talitha) 47.3±0.1 A7V(n)[198] 1.7 ± 0.1 3.14[112] 2.31[111] Part of a quadruple star system
Alpha Ophiuchi A (Rasalhague) 48.6±0.8 A5IVnn[199] 2.6[174] 2.4+0.23
−0.37
[200]
2.07[112] 1.248[201] Part of a binary star system.
Alderamin 49.05±0.08 A8Vn[109] or A7IV-V[202] 2.823 × 2.175[202] 2 ± 0.15[202] 2.5141[12] 1.57[203]
Castor Aa 51±3 A1V[204] 2.089[205] 2.37[205] 1.93[74] 0.986[206] Part of a sextuple star system.
Ba Am[204] 1.648[205] 1.79[205] 2.97[74] 1.886[206]
Delta Leonis (Zosma) 58.4±0.3[12] A4V[207] 2.14 ± 0.04[208] 2.2[209] 2.56[210] 1.29[111]
Iota Centauri 58.6[12] A2V[55] 2.5[211] 2.73[112] 1.47[111]
Beta Arietis A (Sheratan) 59.6±0.8 A5V[212] 2.34 ± 0.1[213] 2.655[166] 1.59[186] Part of a binary star system

List of nearest B-type stars[edit]

This is a list of B-type stars within 200 light years.

Regulus A is the closest B-type star to the Earth.
Name Distance (ly) Spectral type Stellar radius (R) Stellar mass (M) Apparent magnitude (V) Absolute magnitude (V) Notes
Regulus A 79.3±0.7 B8IVn[90] 4.35 ± 0.1[214] 3.8[174] 1.40[90] -0.57[111] Part of a binary star system. Also the 20th brightest star in the night sky.
Algol Aa1 90±3[12] B8V[215] 2.73 ± 0.2[216] 3.17 ± 0.21[216] 2.12 (combined)[53] -0.07[217]
Alpheratz A 97±1 B8IV-VHgMn[218] 2.7 ± 0.4[219] 3.8 ± 0.2[219] 2.22 -0.19[220] Part of a binary star system
Alnair 101±0.7 B6V[55] or B7IV[155] 3.4[221] 4[174] 1.74[222] -0.72[111] 31st brightest star in the night sky.
Alkaid 103.9±0.8[12] B3V[170] 3.4[223] 6.1 ± 0.1[224] 1.86[53] -0.67[111] 40th brightest star in the night sky.
Alpha Pegasi (Markab) 133±1 B9V[225], B9.5III[226] or A0IV[227] 4.62 ± 0.29[228] 3.5[229] 2.48[112] -0.718[230]
Beta Tauri (Elnath) 134±2 B7III[231] 4.2[223] 5 ± 0.1[232] 1.65[53] -1.42[111] 27th brightest star in the night sky.
Achernar 139±3[12] B3Vpe[233] 9.16 – 6.78[234] 6[235] 0.40 – 0.46[236] -2.7[237] 9th brightest star in the night sky.
Epsilon Sagittarii A (Kaus Australis) 143±2[12] B9.5III[238] 6.8[239] 3.515 ± 0.038[240] 1.85[112] -1.41[240] 38th brightest star in the night sky.
Gamma Corvi A (Gienah) 154±1[12] B8III[241] 4.2+0.4
−0.3
[232]
2.585[58] -0.79[111]
Beta Canis Minoris (Gomeisa) 160±10 B8Ve[242] 3.5[243] 3.5[242] 2.84 – 2.92[236] -0.59[111]
Kappa Andromedae 168±2 B9IVn[207] 2.29 ± 0.06[244] 2.768+1
−1.09
[245]
4.139[246] 0.59[111] Has one confirmed exoplanet or brown dwarf
Alpha Pavonis A (Peacock) 179±5[12] B3V[247] 4.83[248] 5.91[181] 1.94[182] -1.762[249] 44th brightest star in the night sky.
Kappa1 Lupi 180±5[12] B9.5Vne[250] 2.3[93] 2.89 ± 0.03[251] 3.86
Alpha Sagittarii (Rukbat) 182±2 B8V[252] 2.35[c] 2.95[181] 3.97[112] 0.23[111]
Beta Librae (Zubeneschamali) 185±2 B8V[232] 4.9 ± 0.3[d] 3.5+0.3
−0.2
[232]
2.61[210] -1.16

List of nearest O-type stars[edit]

This is a list of O-type stars within 1,500 light years.

Zeta Ophiuchi is the closest O-type star to the Earth.
Name Distance (ly) Spectral type Stellar radius (R) Stellar mass (M) Apparent magnitude (V) Absolute magnitude (V) Notes
Zeta Ophiuchi 366±8[12] O9.5V[254] 8.5[255] 20.2[256] 2.56 – 2.58[3] -4.2[257]
Zeta Puppis (Naos) 1080±40 O4If(n)p[258] 14 – 26[259] 56.1[260] 2.24 – 2.26[261] -6.23[260] One of the most massive stars visible to the naked eye.
Mintaka 1200[262] O9.5II[262] 16.5[262] 24[262] 2.5[263] -5.8[264] Part of a multiple star system
Gamma Velorum A 1236±13[265] O7.5III[266] 17 ± 2[267] 28.5 ± 1.1[267] 1.83 (combined)[53] -5.63[267] 30th brightest star in the night sky.
Alnitak 1260±180[268] O9.5lab[268] 20 ± 3.2[268] 33 ± 10[268] 2.08[268] -6[268] Part of a triple star system
Sigma Orionis Aa 1263±4.3[269] O9.5V[270] 5.6[269] 16[269] 4.07 (combined)[271] -3.49[272] Part of a quintuple star system
Meissa A ~1300[273] O8III((f))[258] 13.4[274] 27.9 ± 3.3[224] 3.7[275] -4.25 Part of a multiple star system
Mu Columbae ~1300 O9.5V[276] 6.58[277] 16[277] 5.18[53] -3.64[277]
AE Aurigae 1320±40 O9.5V[258] 7.47[278] 23[278] 5.96[53] (5.78 – 6.08)[236]
Theta1 Orionis C1 1340±65[279] O7Vp[280] 10.6 ± 1.5[281] 33 ± 5[282] 5.13[53] -4.9[281] Part of a binary star system
Iota Orionis Aa1 (Haytsa) 1343+45.6
−42.3
[283]
O9III[284] 8.3[285] 23.1[285] 2.77 (combined)[182] Part of a multiple star system

Notes[edit]

  1. ^ Calculated from the bolometric magnitude 4.54 ± 0.06 and the bolometric correction −0.12 ± 0.05 using the formula: BC = Mbol − MV
  2. ^ Calculated from the bolometric magnitude 4.54 ± 0.06 and the bolometric correction −0.12 ± 0.05 using the formula: BC = MbolMV
  3. ^ Radius calculated using a effective temperature of 12 387 K and a luminosity of 117 L.[181]
  4. ^ Calculated using an angular diameter of 0.801 Milliarcseconds.[253]


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