Draft:List of nearest stars by spectral type

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This is a list of the nearest stars separated by spectral type.

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

List of nearest M-type stars[edit]

See also: List of nearest stars and brown dwarfs

This is a list of M-type stars within 12 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 M4.0V[5] 0.187 ± 0.001[6] 0.161[6] 9.511[7] 13.21[7] Also the second-nearest stellar system to the Solar System.
Wolf 359 7.856±0.001 M6V[8] 0.144 ± 0.004[6] 0.11 ± 0.003[6] 13.507[9] 16.614[10] Also the fourth-nearest stellar system to the Solar System.
Lalande 21185 8.034[11] M2V[12] 0.392 ± 0.004[6] 0.389 ± 0.008[6] 7.52[13] 10.48[14] Also the fifth-nearest stellar system to our Solar System.
Luyten 726-8 B 8.72±0.01 M6V[15] 0.159 ± 0.006[16] 0.1195 ± 0.0043[16] 12.8[10] 15.7[10] Also known as UV Ceti.
A 8.87±0.02 M5.5V[15] 0.165 ± 0.006[16] 0.1225 ± 0.0043[16] The archetype of the flare stars. Also known as BL Ceti
Ross 154 9.706[17] M3.5V[18] 0.200 ± 0.008[6] 0.177 ± 0.004[6] 10.44[18] 13.07[18]
Ross 248 10.306[19] M6V[20] 0.19[21] 0.145[21] 12.23 – 12.34[18] 14.79[22]
Lacaille 9352 10.74[11] M0.5V[23] 0.474 ± 0.008[6] 0.479+0.011
−0.010[6] 		7.34[24] 9.8[25]
Ross 128 11.007±0.001 M4V[26] 0.198 ± 0.007[6] 0.176 ± 0.004[6] 11.13[18] 13.53[18]
EZ Aquarii A 11.11 M5V[18] 0.175[27] 0.1187 ± 0.0011[28] 13.03[18] 15.33[18]
B 0.21 ± 0.04[28] 0.1145 ± 0.0012[28] 13.27[18] 15.58[18]
C 0.093[28] 12.38[18] 17.37[18]
Struve 2398 A 11.4908[17] M3V[21] 0.354 ± 0.003[6] 0.336 ± 0.007[6] 8.94
B 11.491[17] M3.5V[21] 0.273 ± 0.011[21] 0.248 ± 0.235[21] 9.7[29]
Groombridge 34 A 11.6191±0.0008[17] M1.4V[21] 0.385 ± 0.002[21] 0.393+0.009
−0.008[21] 		8.119[21]
B 11.62[17] M4.1V[21] 0.18 ± 0.03[30] 0.15 ± 0.02[30] 11.007[21]
DX Cancri 11.68 M6.5V[31] 0.11[32] 0.09[33] 14.81[34] 16.98[18]
GJ 1061 11.984[35] M5.5V[35] 0.152 ± 0.007[6] 0.125 ± 0.003[6] 13.03[35] 15.26[36]
YZ Ceti 12.122±0.002 M4Ve 0.168 ± 0.009[29] 0.13 ± 0.013[37] 12.03 – 12.18[38] 14.3[39]
Luyten's Star 12.348±0.002 M3.5V[18] 0.293 ± 0.007[40] 0.29[40] 0.987[41] 11.94[41]
Teegarden's Star 12.497±0.004[42] M7V[39] 0.107 ± 0.004[43] 0.093 ± 0.003[43] 15.13[44] 17.2[45]
Kapteyn's Star 12.83 [46] M1.5V[47][23] or sdM1[7] 0.291 ± 0.025[47] 0.281 ± 0.014[47] 8.853 ± 0.008[47] 10.89[7]
Lacaille 8760 12.947 M0Ve[48] 0.51[49] 0.6[18] 6.67[18] 8.69[18] 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[50] 0.8591 ± 0.0036[51] 0.9092 ± 0.0025[51] 1.33[52] 5.71[53] Also the 2nd/3rd nearest individual star to the Solar System. Named Toliman.
Epsilon Eridani (Ran) 10.475 K2V[54] 0.735 ± 0.005[23] 0.82 ± 0.02[55][56] 3.736[57] 6.19[18] Also the tenth-nearest star system to our Solar System. Has one confirmed exoplanet
61 Cygni A 11.404 K5V[58] 0.665 ± 0.005[59] 0.7[60] 5.21[61] 7.506[62] 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[58] 0.595 ± 0.008[59] 0.63[60] 6.05[63] 8.228[62]
Epsilon Indi A 11.867 K5V[23] 0.711 ± 0.005[64] 0.754 ± 0.038[21] 4.83[11] 6.89[65] Also the 19th nearest star system to our Solar System. Has one confirmed exoplanet and 2 brown dwarfs.
Groombridge 1618 15.886 K7.5Ve[66] 0.605 ± 0.02[67] 0.67 ± 0.033[67] 6.6[68] 8.11[69]
40 Eridani A 16.33[17] K0.5V[54] 0.812 ± 0.017[70] 0.78 ± 0.08[70] 4.43[11] 5.93[69] Part of a triple star system
70 Ophiuchi A 16.68 K0V[71] 0.91 ± 0.03[71] 0.9 ± 0.03[72] 4.13[73] 5.49[69]
B 16.707 K4V[71] 0.7 ± 0.07[72] 6.07[73]
Sigma Draconis (Alsafi) 18.799 K0V[74] 0.776 ± 0.008[75] 0.85+0.01
−0.03[76] 		4.674[77] 5.89[78]
Gliese 570 A 19.199[79] K4V[79] 0.739 ± 0.019[23] 0.82 ± 0.04[23] 5.7[79] 6.89[69] Part of a quadruple star system
Eta Cassiopeiae B 19.42[11] K7V[72] 0.66[14] 0.57[72] 7.51[72] Part of a binary star system
36 Ophiuchi A 19.41 K2V[80] 0.817 ± 0.016[23] 0.85 5.08[80] Also known as Guniibuu
B K1V[80] 0.81 5.03[80]
C 19.418±0.004 K5V[80] 0.72 0.71 6.34[80]
HR 7703 A 19.61 K2.5V[54] 0.66[81] 0.65[81] 5.31[82] 6.53[83] Part of a binary system
ADS 7251 B 20.658±0.003 K7V[15] 0.58 ± 0.03[84] 0.64 ± 0.07[84] 7.7[23] Part of a binary star system
HD 219134 21.336 K3V[85] 0.778 ± 0.005[86] 0.81 ± 0.03[86] 5.574[77] Has six known exoplanets
Xi Boötis B 23.011±0.008 K4Ve[87] 0.61[88] 0.66 ± 0.07[88] 6.8[87] Part of a binary star system
268 G. Ceti A 23.58 K3V[89] 0.65 ± 0.053[89] 0.7 ± 0.1[90] 5.83[89] Part of a trinary stellar system also known as Gliese 105
Gliese 667 A 23.623±0.005 K3V[91][92] 0.76[91] 0.73[93] 5.91[91] Part of a triple star system
B K5V[91][92] 0.7[91] 0.69[93] 7.2[91]
HD 4628 24.25±0.01[94] K2.5V[54] 0.749 ± 0.051[89] 0.7 ± 0.1[95] 5.74[96]
TW Piscis Austrini 24.793±0.005 K5Vp[54] 0.629 ± 0.051[23] 0.725 ± 0.036[23] 5.44 – 6.51[97] Also known as Fomalhaut B. Part of a triple star system
107 Piscium 24.8±0.03[94] K1V[74] 0.82 ± 0.03[98] 0.86[98] 5.14 — 5.26[99]
Gliese 673 25.157±0.003 K7V[7] 0.564[89] 7.492[7]
p Eridani A 26.710±0.008 K2V[54] 0.75[17] 0.78[100] 5.76[101]
B 26.733±0.007 0.77[17] 0.77[100] 5.87[101]
Gliese 884 26.85[102] K7V[102] 0.67[102] 0.63[102] 7.9[102]
Chi Draconis B 27.17±0.03 K0V[28] 0.73 ± 0.11[28] 0.748 ± 0.017[28] 3.57 (combined)[103] Part of a binary star system
HR 1614 28.4±0.1[11] K3V[104] 0.78+0.03
−0.02[49] 		0.838+0.034
−0.033[49] 		6.208[104]
HD 50281 28.54±0.01 K3.5V[105] 0.73+0.01
−0.02[94] 		0.79[106] 6.58[107]
HD 192310 28.74±0.01 K2+ V[108] 0.79 – 0.85[91] 0.78 ± 0.04[109] 5.73[108]
AK Leporis 29±0.004 K2V[110] 0.8[17] 6.141[111]
Delta Eridani (Rana) 29.49±0.08[11] K0 IV[112] 2.327 ± 0.029[71] 1.33 ± 0.07[71] 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[113] 4.83[113] The star at the centre of the Solar System.
Alpha Centauri A (Rigil Kentaurus) 4.344±0.002 G2V[50] 1.2175 ± 0.0055[51] 1.0788 ± 0.0029[51] 0.01[52] 4.38[53] 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[74] 0.793 ± 0.004[114] 0.783 ± 0.012[114] 3.5[114] 5.68[114] Also the 20nd nearest star system to the Solar System. Has one confirmed exoplanet.
Eta Cassiopeiae A (Achird) 19.42[11] G0V[115] 1.0386 ± 0.0038[116] 0.972 ± 0.012[75] 3.44[108] 4.57[69] Part of a binary star system
82 G. Eridani 19.704±0.009 G6V[74] 0.92[14] 0.7[117] 4.254 5.34[69] Has two confirmed exoplanets and one unconfirmed
Delta Pavonis 19.89[17] G8 IV[54] 1.197 ± 0.016[64] 1.051 ± 0.062[118] 3.56[119] 4.62[69] The nearest undisputed subgiant.
Xi Boötis A 22.027[120] G8Ve[120] 0.817 ± 0.007[88] 0.88 ± 0.03[88] 4.7[120] 5.54[121] Part of a binary star system
Beta Hydri 24.33[11] G2 IV[122] 1.809 ± 0.015[123] 1.08 ± 0.03[122] 2.8[108] 3.45[124]
Mu Cassiopeiae Aa (Marfak) 25.03±0.08 G5Vb[74] 0.789 ± 0.008[125] 0.744 ± 0.0122[125] 5.14[126] 5.78[127] Part of a binary star system
Mu Herculis Aa 27.11±0.04 G5IV[128] 1.73 ± 0.02[129] 1.11 ± 0.01[129] 3.417[11] 3.82[129] Part of a quadruple star system
Chara 27.63±0.04[17] G0V[130] 1.123 ± 0.028[75] 0.97 ± 0.04[130] 4.25[130] 4.64[69]
61 Virginis 27.84±0.03 G7V[105] 0.9867 ± 0.0048[131] 0.93[131] 4.74 5.07[69] Has three confirmed exoplanets
Chi1 Orionis A 28.26±0.07 G0V[74] 0.979 ± 0.009[75] 1.01[132] 4.38 – 4.41[133] 4.82[121]
41 G. Arae A 28.67±0.02 G8V[134] 0.79[49] 0.81[49] 5.61 5.74[69] Part of a binary star system
Xi Ursae Majoris Ba 29 G2V[74] 0.92 ± 0.04[135] 0.86[135] 4.264[136] 4.66[a] Part of a quadruple star system
Groombridge 1830 (Argelander's Star) 29.93[94] G8VIp[137] 0.681 ± 0.006[75] 0.661[49] 6.44[68] 6.64[69]
Beta Comae Berenices 29.95±0.1 G0V[138] 1.106 ± 0.011[75] 1.15[49] 4.26[108] 4.46[69]
HD 102365 A 30.4±0.02 G2V[54] 0.96[49] 0.889[49] 4.88[82] 5.07[69] Part of a binary star system
61 Ursae Majoris 31.24±0.04[94] G8V[139] 0.86 ± 0.02[140] 0.93 ± 0.02[141] 5.35[142] 5.53[121]
Alpha Mensae A 33.31±0.02 G7V[54] 0.96 ± 0.013[143] 0.964 ± 0.037[143] 5.09 5.03[69] Part of a binary star system
Iota Persei 34.38±0.08[11] G0V[74] or F9.5V[54] 1.412 ± 0.009[75] 1.35 ± 0.08[144] 4.062[145] 3.94[69]
Zeta Herculis A 35±0.2[11] G7V[128] 0.915 – 0.92[146] 0.98 ± 0.02[146] 2.81 (combined)[108] 2.65 (combined)[147] Part of a binary star system
Delta Trianguli A 35.2±0.1 G0V[148] 0.98[91] 1[149] 4.865[69] 4.69[69] Part of a binary star system
11 Leonis Minoris A 36.54±0.08 G8V[150] 1.0029 ± 0.0158[116] 0.964[116] 5.54[151] 5.25[121] Part of a binary star system
Eta Boötis A (Muphrid) 37.2±0.5[11] G0IV[152] 2.672 ± 0.028[153] 1.71 ± 0.05[153] 2.68[69] 2.41[103] Part of a binary star system
Lambda Serpentis 38.87±0.07[17] G0V[154] 1.06 ± 0.152[89] 1.14[144] 4.43[155] 4.01[69]
Zeta Reticuli A 39.27±0.03 G3-5V[156] 0.92[49] 0.958[49] 5.52[82] 5.11[69]
B 39.29±0.09 G2V[156] 0.99[49] 0.985[49] 5.22[82] 4.83[69]
85 Pegasi A 39.5±0.4[157] G5Vb 0.91 0.88 5.75 5.32[69] 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[11] F5IV-V[158] 2.048 ± 0.025[158] 1.499 ± 0.031[159] 0.34[158] 2.66[22] Part of a binary star system. Eight-brightest star in the night sky.
Pi3 Orionis (Tabit) 26.32±0.04[11] F6V[137] 1.323 ± 0.004[75] 1.236[49] 3.16[137] 3.65[69]
Chi Draconis A 27.17±0.03 F7V[28] 1.2 ± 0.09[28] 1.029 ± 0.06[28] 3.57[103] 4.04[103] Part of a binary system
Zeta Tucanae 28.01±0.04[11] F9.5V[54] 1.08 ± 0.08[81] 0.99 ± 0.02[109] 4.23 4.67[121]
Xi Ursae Majoris A (Alula Australis) 29±1 F8.5:V[74] 1.02 ± 0.04[98] 0.97[98] 4.264[136] 4.66[b] Part of a five-star system
Gamma Leporis 29.12±0.05 F6V[160] 1.33 ± 0.04[161] 1.23 ± 0.05[161] 3.587[162] 3.84[69]
Gamma Pavonis 30.21±0.05[11] F9 V Fe-1.4 CH-0.7[54] 1.15 ± 0.04[71] 1.21 ± 0.12[71] 4.22[163] 4.40[69]
Zeta Herculis A 35±0.2[11] F9IV[128] 2.56 – 2.61[164] 1.45 ± 0.1[164] 2.81[108] 2.65[165]
Beta Virginis (Zavijava) 35.65±0.09[11] F9V[166] 1.681 ± 0.008[75] 1.413 ± 0.061[167] 3.604[168] 3.41[69]
Theta Persei A 36.29±0.09 F8V[169] 1.319 ± 0.011[75] 1.138 ± 0.01[75] 4.11[89] 3.88[69]
Gamma Serpentis 36.7±0.07[11] F6V[170] 1.55 ± 0.05[71] 1.3 ± 0.15[71] 3.85[170] 3.60[69]
Zeta Doradus A 37.91±0.07 F7V 1.07+0.02
−0.07[171] 		1.07[172] 4.8191[11] 4.38[173]
Gamma Virginis (Porrima) A 38.1±0.3 F0V[174] 1.56[175] 3.4[175] 3[175]
B 1.5[175] 3.5[175] 3.1[175]
Iota Pegasi A 38.5±0.2 F5V 1.526 ± 0.068 1.33 3.84 3.49
Zeta Trianguli Australis A 39.5±0.2 F9V[54] 1.12[176] 4.90[96] 4.49[69] Part of a binary star system
Beta Trianguli Australis 40.37±0.08 F1V[54] 1.976 ± 0.021[64] 1.56[177] 2.85[178] 2.37[107]
Theta Ursae Majoris 43.96±0.08 F6IV 2.365 ± 0.008 1.41 3.166 2.43
Upsilon Andromedae A (Titawin) 44±0.1 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[105] 1.711[179] 2.063 ± 0.023[180] -1.46 [181] 1.43[182] Also the sixth-nearest stellar system to the Solar System and the brightest star in the night sky.
Altair 16.7[183] A7Vn[105] 2.01 – 1.57[184] 1.86 ± 0.03[184] 0.76[52] 2.22[185] 12th brightest star in the night sky.
Vega 25.04±0.07 A0Va[105] 2.818 – 2.362[186] 2.135 ± 0.074[186] 0.026[187] 0.582[188] Fifth-brightest star in the night sky.
Fomalhaut A 25.13±0.09[189] A3V[23] 1.842 ± 0.019[190] 1.92 ± 0.02[190] 1.16[52] 1.72[190] 18th brightest star in the night sky. Part of a triple star system.
Denebola 35.9±0.2[11] A3Va[105] 1.728[191] 1.78[191] 2.14[192] 1.93[107]
Delta Capricorni (Deneb Algedi) 38.7±0.09 A7m III[193] 1.91[194] 2[194] 2.81[193] 2.48[107] Part of a binary star system
Iota Ursae Majoris A (Talitha) 47.3±0.1 A7V(n)[195] 1.7 ± 0.1 3.14[108] 2.31[107] Part of a quadruple star system
Alpha Ophiuchi A (Rasalhague) 48.6±0.8 A5IVnn[196] 2.6[170] 2.4+0.23
−0.37[197] 		2.07[108] 1.248[198] Part of a binary star system.
Alderamin 49.05±0.08 A8Vn[105] or A7IV-V[199] 2.823 × 2.175[199] 2 ± 0.15[199] 2.5141[11] 1.57[200]
Castor Aa 51±3 A1V[201] 2.089[202] 2.37[202] 1.93[73] 0.986[203] Part of a sextuple star system.
Ba Am[201] 1.648[202] 1.79[202] 2.97[73] 1.886[203]
Delta Leonis (Zosma) 58.4±0.3[11] A4V[204] 2.14 ± 0.04[205] 2.2[206] 2.56[207] 1.29[107]
Iota Centauri 58.6[11] A2V[54] 2.5[208] 2.73[108] 1.47[107]
Beta Arietis A (Sheratan) 59.6±0.8 A5V[209] 2.34 ± 0.1[210] 2.655[162] 1.59[182] 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[89] 4.35 ± 0.1[211] 3.8[170] 1.40[89] -0.57[107] Part of a binary star system. Also the 20th brightest star in the night sky.
Algol Aa1 90±3[11] B8V[212] 2.73 ± 0.2[213] 3.17 ± 0.21[213] 2.12 (combined)[52] -0.07[214]
Alpheratz A 97±1 B8IV-VHgMn[215] 2.7 ± 0.4[216] 3.8 ± 0.2[216] 2.22 -0.19[217] Part of a binary star system
Alnair 101±0.7 B6V[54] or B7IV[151] 3.4[218] 4[170] 1.74[219] -0.72[107] 31st brightest star in the night sky.
Alkaid 103.9±0.8[11] B3V[166] 3.4[220] 6.1 ± 0.1[221] 1.86[52] -0.67[107] 40th brightest star in the night sky.
Alpha Pegasi (Markab) 133±1 B9V[222], B9.5III[223] or A0IV[224] 4.62 ± 0.29[225] 3.5[226] 2.48[108] -0.718[227]
Beta Tauri (Elnath) 134±2 B7III[228] 4.2[220] 5 ± 0.1[229] 1.65[52] -1.42[107] 27th brightest star in the night sky.
Achernar 139±3[11] B3Vpe[230] 9.16 – 6.78[231] 6[232] 0.40 – 0.46[233] -2.7[234] 9th brightest star in the night sky.
Epsilon Sagittarii A (Kaus Australis) 143±2[11] B9.5III[235] 6.8[236] 3.515 ± 0.038[237] 1.85[108] -1.41[237] 38th brightest star in the night sky.
Gamma Corvi A (Gienah) 154±1[11] B8III[238] 4.2+0.4
−0.3[229] 		2.585[57] -0.79[107]
Beta Canis Minoris (Gomeisa) 160±10 B8Ve[239] 3.5[240] 3.5[239] 2.84 – 2.92[233] -0.59[107]
Kappa Andromedae 168±2 B9IVn[204] 2.29 ± 0.06[241] 2.768+1
−1.09[242] 		4.139[243] 0.59[107] Has one confirmed exoplanet or brown dwarf
Alpha Pavonis A (Peacock) 179±5[11] B3V[244] 4.83[245] 5.91[177] 1.94[178] -1.762[246] 44th brightest star in the night sky.
Kappa1 Lupi 180±5[11] B9.5Vne[247] 2.3[91] 2.89 ± 0.03[248] 3.86
Alpha Sagittarii (Rukbat) 182±2 B8V[249] 2.35[c] 2.95[177] 3.97[108] 0.23[107]
Beta Librae (Zubeneschamali) 185±2 B8V[229] 4.9 ± 0.3[d] 3.5+0.3
−0.2[229] 		2.61[207] -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[11] O9.5V[251] 8.5[252] 20.2[253] 2.56 – 2.58[3] -4.2[254]
Zeta Puppis (Naos) 1080±40 O4If(n)p[255] 14 – 26[256] 56.1[257] 2.24 – 2.26[258] -6.23[257] One of the most massive stars visible to the naked eye.
Mintaka 1200[259] O9.5II[259] 16.5[259] 24[259] 2.5[260] -5.8[261] Part of a multiple star system
Gamma Velorum A 1236±13[262] O7.5III[263] 17 ± 2[264] 28.5 ± 1.1[264] 1.83 (combined)[52] -5.63[264] 30th brightest star in the night sky.
Alnitak 1260±180[265] O9.5lab[265] 20 ± 3.2[265] 33 ± 10[265] 2.08[265] -6[265] Part of a triple star system
Sigma Orionis Aa 1263±4.3[266] O9.5V[267] 5.6[266] 16[266] 4.07 (combined)[268] -3.49[269] Part of a quintuple star system
Meissa A ~1300[270] O8III((f))[255] 13.4[271] 27.9 ± 3.3[221] 3.7[272] -4.25 Part of a multiple star system
Mu Columbae ~1300 O9.5V[273] 6.58[274] 16[274] 5.18[52] -3.64[274]
AE Aurigae 1320±40 O9.5V[255] 7.47[275] 23[275] 5.96[52] (5.78 – 6.08)[233]
Theta1 Orionis C1 1340±65[276] O7Vp[277] 10.6 ± 1.5[278] 33 ± 5[279] 5.13[52] -4.9[278] Part of a binary star system
Iota Orionis Aa1 (Haytsa) 1343+45.6
−42.3[280] 		O9III[281] 8.3[282] 23.1[282] 2.77 (combined)[178] 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 = Mbol − MV
  3. ^ Radius calculated using a effective temperature of 12 387 K and a luminosity of 117 L☉.[177]
  4. ^ Calculated using an angular diameter of 0.801 Milliarcseconds.[250]


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