|
Caractéristiques
des principales étoiles
Les étoiles les plus brillantes et les plus proches
de la Terre
1.
Les 20 étoiles les plus brillantes
|
|
Nom
|
Distance
(a.l.)
|
Type spectral
|
Vitesse
radiale
(km/s)
|
Mouvement
propre
("/an)
|
Mv
|
Mabs
|
Luminosité
(Soleil = 1)
|
|
Sirius
|
a
CMa
|
8.61
|
A1 V
|
-9
|
1.339
|
-1.46
|
+1.45
|
26.1
|
|
Canopus
|
a
Car
|
313
|
F0 I
|
+21
|
0.031
|
-0.62
|
-5.53
|
14000
|
|
Arcturus
|
a
Boo
|
36.7
|
K2 III
|
-5
|
2.279
|
-0.05
|
-0.31
|
190
|
|
a
Centauri
|
a
Cen
|
4.4
|
G2 V
|
-25
|
3.71
|
-0.01
|
+4.34
|
1.77
|
|
Véga
|
a
Lyr
|
25.3
|
A0 V
|
-14
|
0.035
|
+0.03
|
+0.58
|
61.9
|
|
Capella
|
a
Aur
|
42.2
|
G8 III
|
+30
|
0.434
|
+0.08
|
-0.48
|
180
|
|
Rigel
|
b
Ori
|
773
|
B8 Ia
|
+21
|
0.002
|
+0.18
|
-6.69
|
700000
|
|
Procyon
|
a
CMi
|
11.4
|
F5 IV-V
|
-4
|
1.259
|
+0.4
|
+2.68
|
7.73
|
|
Achernar
|
a
Eri
|
144
|
B3 IV
|
+19
|
0.097
|
+0.45
|
-2.77
|
5250
|
|
Bételgeuse
|
a
Ori
|
527
|
M2 Iab
|
+21
|
0.029
|
+0.45
|
-5.14
|
50000
|
|
Hadar
|
b Cen
|
525
|
B1 II
|
-12
|
0.042
|
+0.61
|
-5.42
|
86000
|
|
Altair
|
a
Aql
|
16.8
|
A7 IV-V
|
-26
|
0.661
|
+0.76
|
+2.2
|
11.8
|
|
Aldébaran
|
a
Tau
|
65.1
|
K5 III
|
+54
|
0.199
|
+0.87
|
-0.63
|
370
|
|
Spica
|
a
Vir
|
262
|
B1 V
|
+1
|
0.053
|
+0.98
|
-3.55
|
25000
|
|
Antarès
|
a
Sco
|
604
|
M1 Ib
|
-3
|
0.025
|
+1.06
|
-5.28
|
37000
|
|
Pollux
|
b
Gem
|
33.7
|
K0 III
|
+3
|
0.627
|
+1.16
|
+1.09
|
46.6
|
|
Fomalhaut
|
a
PsA
|
25.1
|
A3 V
|
+7
|
0.368
|
+1.17
|
+1.74
|
18.9
|
|
Déneb
|
a
Cyg
|
3230
|
A2 Ia
|
-5
|
0.002
|
+1.25
|
-8.73
|
320000
|
|
Becrux
|
b
Crux
|
353
|
B0.5 III
|
+15.6
|
0.05
|
+1.28
|
-3.92
|
34000
|
|
Régulus
|
a
Leo
|
77.5
|
B7 V
|
+4
|
0.249
|
+1.36
|
-0.52
|
331
|
|
2.
Les étoiles les plus proches de la Terre (<15 a.l.)
|
|
Parallax
(")
|
Distance
(a.l.)
|
Type
spectral
|
Vitesse
radiale
(km/s)
|
Mouvement
propre
("/an)
|
Mv
|
Mabs
|
Luminosité
(Soleil = 1)
|
|
Soleil
|
|
8.27 m.l.
|
G2 V
|
|
|
-26.7
|
+4.83
|
1.00
|
|
Proxima Centuri
|
0.772
|
4.22
|
M5.5 V
|
-22
|
3.853
|
+11.01
|
15.45
|
0.0082
|
|
a Centuri A
|
0.742
|
4.40
|
G2 V
|
-25
|
3.710
|
-0.01
|
+4.34
|
1.77
|
|
a Centuri B
|
0.742
|
4.40
|
K0 V
|
-21
|
3.724
|
+1.35
|
+5.70
|
0.55
|
|
Etoile de Barnbard
|
0.549
|
5.94
|
M4 V
|
-111
|
10.358
|
+9.54
|
+13.24
|
0.0036
|
|
Wolf 359
|
0.418
|
7.80
|
M6 V
|
+13
|
4.689
|
+13.45
|
+16.6
|
0.0035
|
|
Lalande 21185
|
0.392
|
8.32
|
M2 V
|
-84
|
4.802
|
+7.49
|
+10.46
|
0.023
|
|
Luyten 726-8 A
|
0.381
|
8.56
|
M5.5 V
|
+29
|
3.366
|
+12.41
|
+15.3
|
0.0094
|
|
Luyten 726-8 B
|
0.381
|
8.56
|
M6 V
|
+32
|
3.366
|
+13.2
|
+16.1
|
0.0056
|
|
Sirius A
|
0.379
|
8.61
|
A1 V
|
-9
|
1.339
|
-1.44
|
+1.45
|
26.1
|
|
Sirius B
|
0.379
|
8.61
|
dA2
|
-9
|
1.339
|
+8.44
|
+11.3
|
0.0024
|
|
Ross 154
|
0.336
|
9.71
|
M3.5 V
|
-12
|
0.666
|
+10.37
|
+13.00
|
0.0041
|
|
Ross 248
|
0.316
|
10.32
|
M5.5 V
|
-78
|
1.626
|
+12.29
|
+14.8
|
0.0015
|
|
e Eridani
|
0.311
|
10.49
|
K2 V
|
+17
|
0.977
|
+3.72
|
+6.18
|
0.40
|
|
Lacaille 9352
|
0.304
|
10.72
|
M1.5 V
|
+10
|
6.896
|
+7.35
|
+9.76
|
0.051
|
|
Ross 128
|
0.300
|
10.87
|
M4 V
|
-31
|
1.361
|
+11.12
|
+13.50
|
0.0029
|
|
Luyten 789-6
|
0.294
|
11.09
|
M5 V
|
-60
|
3.259
|
+12.33
|
+14.7
|
0.0013
|
|
61 Cygni A
|
0.287
|
11.36
|
K5 V
|
-65
|
5.281
|
+5.20
|
+7.49
|
0.16
|
|
61 Cygni B
|
0.285
|
11.44
|
K7 V
|
-64
|
5.172
|
+6.05
|
+8.33
|
0.095
|
|
Procyon A
|
0.286
|
11.40
|
F5 IV-V
|
-4
|
1.259
|
+0.40
|
+2.68
|
7.73
|
|
Procyon B
|
0.286
|
11.40
|
dZ (A4)
|
-4
|
1.259
|
+10.7
|
+13.0
|
0.00055
|
|
BD+59o1915 A
|
0.281
|
11.61
|
M3 V
|
-1
|
2.238
|
+8.94
|
+11.18
|
0.020
|
|
BD+59o1915 B
|
0.281
|
11.61
|
M3.5 V
|
+1
|
2.313
|
+9.70
|
+11.97
|
0.010
|
|
Van Maanen
|
0.232
|
14.13
|
dZ7 (F7)
|
+41.7
|
2.98
|
+12.38
|
+14.23
|
0.000182
|
|
Groombridge 34 A
|
0.280
|
11.65
|
M1.5 V
|
+12
|
2.918
|
+8.09
|
+10.33
|
0.030
|
|
Groombridge 34 B
|
0.280
|
11.65
|
M3.5 V
|
+11
|
2.918
|
+11.07
|
+13.3
|
0.0031
|
|
e Indi
|
0.276
|
11.82
|
K5 V
|
-40
|
4.704
|
+4.69
|
+6.89
|
0.27
|
|
GJ 1111
|
0.276
|
11.82
|
M6.5 V
|
-5
|
1.288
|
+14.79
|
+17.0
|
0.00027
|
|
t Ceti
|
0.274
|
11.90
|
G8 V
|
-17
|
1.922
|
+3.49
|
+5.68
|
0.62
|
|
Pour
plus d'information
Sur
ce site
Liste
d'étoiles variables facilement accessibles
Tableau
récapitulatif des étoiles d'Orion
Liste
des étoiles variables et des étoiles multiples d'Orion
Sur
Internet
Catalogue
stellaire VizieR V/101
Catalogue
stellaire Hipparcos
Livres
The
Cambridge Encyclopedia of Stars, J.Kaler,
CUP, 2006
The
Hundred Greatest Stars, J.Kaler,
Springer, 2002
Retour
à l'Astronomie
|
