Liste d'étoiles de la Petite Ourse
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Cet article recense les étoiles situées dans la constellation de la Petite Ourse, classées par magnitude apparente décroissante.
Liste
modifierNom | B | F | Var | HD | HIP | a | dec | Mag. app. | Mag. abs. | Dist. (al) | Type | Notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Polaris | α | 1 | 8890 | 11767 | 02h 31m 47,08s | +89° 15′ 50,9″ | 1,97 | −3,64 | 431 | F7:Ib-IIv SB | Étoile polaire, Lodestar, Alruccabah, Cynosura, Phoenice, Tramontana, Navigatoria, Yilduz, Mismar, Polyarnaya ; céphéide | |
β UMi | β | 7 | 131873 | 72607 | 14h 50m 42,40s | +74° 09′ 19,7″ | 2,07 | −0,87 | 126 | K4IIIvar | Kochab, Kokab, Kochah ; variable suspectée ; possède une exoplanète (b) | |
γ UMi | γ | 13 | 137422 | 75097 | 15h 20m 43,75s | +71° 50′ 02,3″ | 3,00 | −2,84 | 480 | A3II-III | Pherkad, Pherkad Major ; variable de type δ Sct | |
ε UMi | ε | 22 | 153751 | 82080 | 16h 45m 58,16s | +82° 02′ 14,1″ | 4,21 | −0,92 | 346 | G5IIIvar | Urodelus ; variable de type RS CVn | |
5 UMi | 5 | 127700 | 70692 | 14h 27m 31,52s | +75° 41′ 45,4″ | 4,25 | −0,87 | 345 | K4III | |||
ζ UMi | ζ | 16 | 142105 | 77055 | 15h 44m 03,46s | +77° 47′ 40,2″ | 4,29 | −1,02 | 376 | A3Vn | Alifa al Farkadain | |
δ UMi | δ | 23 | 166205 | 85822 | 17h 32m 12,90s | +86° 35′ 10,8″ | 4,35 | 0,61 | 183 | A1Vn | Yildun, Gildun, Vildiur, Yilduz, Pherkard | |
RR UMi | RR | 132813 | 73199 | 14h 57m 35,12s | +65° 55′ 56,6″ | 4,63 | −0,80 | 398 | M5III | Étoile variable semi-régulière | ||
4 UMi | 4 | 124547 | 69112 | 14h 08m 51,01s | +77° 32′ 50,8″ | 4,80 | −1,13 | 500 | K3III | |||
η UMi | η | 21 | 148048 | 79822 | 16h 17m 30,50s | +75° 45′ 16,9″ | 4,95 | 2,58 | 97 | F5V | Anwar al Farkadain, Alasco | |
θ UMi | θ | 15 | 139669 | 76008 | 15h 31m 25,05s | +77° 20′ 57,6″ | 5,00 | −2,03 | 832 | K5III | Variable suspectée | |
11 UMi | 11 | 136726 | 74793 | 15h 17m 05,88s | +71° 49′ 26,0″ | 5,02 | −0,37 | 389 | K4III | Pherkad Minor ; possède une exoplanète | ||
136064 | 74605 | 15h 14m 38,00s | +67° 20′ 51,6″ | 5,15 | 3,13 | 83 | F9IV | |||||
124730 | 69373 | 14h 12m 04,05s | +69° 25′ 57,6″ | 5,18 | −0,50 | 445 | M2III | Étoile variable | ||||
19 UMi | 19 | 146926 | 79280 | 16h 10m 49,53s | +75° 52′ 39,1″ | 5,48 | −1,07 | 665 | B8V | |||
HD 118904 | 118904 | 66435 | 13h 37m 11,05s | +71° 14′ 32,2″ | 5,50 | 0,05 | 400 | K2III | Possède une exoplanète | |||
149681 | 80480 | 16h 25m 43,53s | +78° 57′ 49,0″ | 5,55 | 2,42 | 138 | F0V | |||||
133002 | 72573 | 14h 50m 19,63s | +82° 30′ 45,0″ | 5,63 | 2,45 | 141 | F9V | |||||
140227 | 76519 | 15h 37m 39,21s | +69° 16′ 59,6″ | 5,65 | −1,51 | 881 | M0III | |||||
145622 | 78661 | 16h 03m 31,40s | +76° 47′ 38,0″ | 5,73 | −0,53 | 581 | A3V | |||||
HD 158996 | 158996 | 84769 | 17h 19m 37,05s | +80° 08′ 11,0″ | 5,74 | −1,67 | 991 | K5III | Possède une exoplanète | |||
24 UMi | 24 | 166926 | 85699 | 17h 30m 46,97s | +86° 58′ 04,9″ | 5,78 | 2,38 | 156 | A2m | |||
117187 | 65536 | 13h 26m 08,02s | +72° 23′ 29,4″ | 5,82 | −1,63 | 1009 | M1III | |||||
HD 120084 | 120084 | 66903 | 13h 42m 39,38s | +78° 03′ 51,6″ | 5,91 | 0,96 | 318 | G7III | Possède une exoplanète | |||
152303 | 81854 | 16h 43m 06,14s | +77° 30′ 48,5″ | 5,99 | 3,21 | 117 | F4V | |||||
147321 | 79601 | 16h 14m 33,47s | +73° 23′ 41,3″ | 6,02 | −0,78 | 748 | A3V | |||||
VX UMi | VX | 155154 | 83317 | 17h 01m 40,08s | +75° 17′ 51,6″ | 6,17 | 2,91 | 146 | F0IVn | Variable de type γ Dor | ||
135384 | 74272 | 15h 10m 44,40s | +67° 46′ 51,8″ | 6,18 | 0,23 | 504 | A8Vn | |||||
133994 | 73706 | 15h 03m 57,73s | +65° 55′ 11,0″ | 6,22 | 0,45 | 464 | A2Vs | |||||
UY UMi | UY | 107192 | 59767 | 12h 15m 20,67s | +87° 42′ 00,0″ | 6,27 | 2,93 | 152 | F2V | Variable de type γ Dor | ||
129245 | 71196 | 14h 33m 38,62s | +79° 39′ 36,8″ | 6,27 | 0,52 | 461 | K3III | |||||
λ UMi | λ | 183030 | 84535 | 17h 16m 57,26s | +89° 02′ 15,8″ | 6,31 | −0,84 | 876 | M1III | Variable semi-régulière | ||
107113 | 59879 | 12h 16m 49,35s | +86° 26′ 09,0″ | 6,33 | 3,34 | 129 | F4V | |||||
151623 | 81428 | 16h 37m 52,81s | +78° 55′ 06,8″ | 6,33 | 0,81 | 414 | G9III | |||||
150275 | 80850 | 16h 30m 39,08s | +77° 26′ 45,1″ | 6,35 | 0,87 | 408 | K1III | |||||
20 UMi | 20 | 147142 | 79420 | 16h 12m 32,20s | +75° 12′ 38,1″ | 6,36 | −0,49 | 765 | K2IV | |||
113889 | 63822 | 13h 04m 49,78s | +73° 01′ 29,8″ | 6,43 | 1,01 | 396 | F0V | |||||
3 UMi | 3 | 124063 | 68956 | 14h 06m 56,48s | +74° 35′ 37,5″ | 6,43 | 0,79 | 438 | A7V | |||
5914 | 7283 | 01h 33m 48,52s | +89° 00′ 56,6″ | 6,46 | 1,49 | 321 | A3V | |||||
π1 UMi A | π1 | 139777 | 75809 | 15h 29m 11,97s | +80° 26′ 54,0″ | 6,57 | 4,85 | 72 | G8IV-V+... | |||
9 UMi | 9 | 133621 | 73440 | 15h 00m 27,71s | +71° 45′ 54,9″ | 6,64 | 4,00 | 110 | G0 | |||
8 UMi | 8 | 133086 | 73136 | 14h 56m 48,32s | +74° 54′ 03,3″ | 6,83 | 0,95 | 489 | K0 | Possède une exoplanète | ||
17 UMi | 17 | 143803 | 77942 | 15h 55m 01,10s | +75° 34′ 27.45″ | 6,88 | 0,47 | 611 | G5III | |||
π2 UMi | π2 | 18 | 141652 | 76695 | 15h 39m 38,72s | +79° 58′ 59,2″ | 6,89 | 1,54 | 384 | F2 | ||
HD 150706 | 150706 | 80902 | 16h 31m 17,59s | +79° 47′ 23,2″ | 7,02 | 4,85 | 92 | G3V | Possède une exoplanète | |||
U UMi | U | 125556 | 69816 | 14h 17m 19,90s | +66° 47′ 39,2″ | 7,10 | 858 | M6-8e | Variable de type Mira | |||
12 UMi | 12 | 136727 | 74806 | 15h 17m 16,81s | +71° 12′ 40.18″ | 7,26 | 1,13 | 581 | F8 | Étoile triple | ||
π1 UMi B | π1 | 139813 | 75829 | 15h 29m 24,36s | +80° 27′ 00,0″ | 7,30 | 5,62 | 71 | G5 | |||
14 UMi | 14 | 137686 | 75152 | 15h 21m 30,52s | +73° 28′ 35,1″ | 7,38 | 3,51 | 194 | F5 | |||
6 UMi | 6 | 130834 | 72181 | 14h 45m 51,11s | +71° 57′ 58,14″ | 7,50 | 0,87 | 833 | A5 | |||
S UMi | S | 139492 | 75847 | 15h 29m 34,57s | +78° 38′ 00,3″ | 7,5 | 1280 | M6.5-7.5e | Variable de type Mira | |||
10 UMi | 10 | 134584 | 73808 | 15h 05m 07,29s | +73° 53′ 30.73″ | 7,57 | 1,69 | 430 | A0 | |||
V UMi | V | 119227 | 66562 | 13h 38m 41,07s | +74° 18′ 36,3″ | 7,81 | 1280 | M... | Variable semi-regulière | |||
W UMi | W | 150265 | 79069 | 16h 08m 27,28s | +86° 11′ 59,6″ | 8,65 | 1350 | A2V | Variable de type Algol | |||
RU UMi | RU | 13h 38m 56,81s | +69° 48′ 11,2″ | 10,24 | 932 | A2 | Variable de type β Lyr | |||||
Z UMi | Z | 15h 02m 01,48s | +83° 03′ 48,7″ | 11,40 | C | Variable de type R CrB | ||||||
T UMi | T | 118556 | 13h 34m 41,12s | +73° 25′ 53,0″ | 11,46 | M6e | Variable de type Mira | |||||
SS UMi | SS | 15h 51m 22,34s | +71° 45′ 11,9″ | 12,6 | CV | Variable de type SU UMa | ||||||
WD 1337+705 | 66578 | 13h 38m 50,48s | +70° 17′ 07,7″ | 12,77 | 85,14 | DA2.4 | Naine blanche | |||||
H1504+65 | 15h 02m 09,62s | +66° 12′ 18,6″ | 15,9 | 1590 | DZ... | Possible pré-naine blanche | ||||||
Calvera | 14h 12m 56,0s | +79° 22′ 04″ | 625 | Pulsar | ||||||||
RW UMi | RW | 16h 47m 54,75s | +77° 02′ 12,2″ | Variable de type DQ Her | ||||||||
WISE 1506+7027 | 15h 06m 49,89s | +70° 27′ 36,2″ | 11,1 | T6 | Naine brune |
Voir aussi
modifierLiens internes
modifierSources
modifier- ESA, « The Hipparcos and Tycho Catalogues », (consulté le )
- Natalia Dimitrievna Kostyuk, « HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index », (consulté le )
- N. G. Roman, « Identification of a Constellation from a Position », (consulté le )
- N. N. Samus, O. V. Durlevich et al., « General Catalog of Variable Stars (Basse de données du GCVS, version 5.1) », (consulté le )
- « Site de l'AAVSO », Association américaine des observateurs d'étoiles variables (consulté le )