# Liste d'étoiles de l'Hydre mâle

Cet article recense les étoiles situées dans la constellation de l'Hydre mâle, classées par magnitude apparente décroissante.

## Liste

| Dés. | B | Var | HD | HIP | α | δ | Mag. app. | Mag. abs. | Dist. (al) | Type | Notes |
| β Hyi | β | | 2151 | 2021 | 00$^h$ 25$^m$ 39,20$^s$ | −77° 15′ 18,1″ | 2,82 | 3,45 | 24 | G2IV | Étoile proche |
| α Hyi | α | | 12311 | 9236 | 01$^h$ 58$^m$ 45,87$^s$ | −61° 34′ 11,7″ | 2,86 | 1,16 | 71 | F0V | Tête de l'Hydre |
| γ Hyi | γ | | 24512 | 17678 | 03$^h$ 47$^m$ 14,23$^s$ | −74° 14′ 21,3″ | 3,26 | −0,83 | 214 | M2III | Variable semi-régulière |
| δ Hyi | δ | | 15008 | 11001 | 02$^h$ 21$^m$ 45,02$^s$ | −68° 39′ 33,9″ | 4,08 | 0,99 | 135 | A3V | |
| ε Hyi | ε | | 16978 | 12394 | 02$^h$ 39$^m$ 35,22$^s$ | −68° 16′ 01,0″ | 4,12 | 0,76 | 153 | B9III | |
| η$^2$ Hyi | η$^2$ | | 11977 | 8928 | 01$^h$ 54$^m$ 56,01$^s$ | −67° 38′ 50,9″ | 4,68 | 0,57 | 217 | G5III | Possède une exoplanète (b) |
| ν Hyi | ν | | 18293 | 13244 | 02$^h$ 50$^m$ 28,54$^s$ | −75° 04′ 00,8″ | 4,76 | −0,26 | 329 | K3III | |
| ζ Hyi | ζ | | 17566 | 12876 | 02$^h$ 45$^m$ 32,53$^s$ | −67° 37′ 00,2″ | 4,83 | 0,05 | 295 | A2IV/V | |
| λ Hyi | λ | | 4815 | 3781 | 00$^h$ 48$^m$ 35,12$^s$ | −74° 55′ 24,1″ | 5,09 | 1,10 | 205 | K5III | |
| μ Hyi | μ | | 16522 | 11757 | 02$^h$ 31$^m$ 40,12$^s$ | −79° 06′ 33,3″ | 5,27 | 0,51 | 292 | G4III | |
| θ Hyi | θ | | 19400 | 14131 | 03$^h$ 02$^m$ 15,40$^s$ | −71° 54′ 09,0″ | 5,51 | −0,52 | 525 | B8III/IV | |
| ι Hyi | ι | | 21024 | 15201 | 03$^h$ 15$^m$ 57,36$^s$ | −77° 23′ 19,0″ | 5,51 | 3,17 | 96 | F4III | |
| π$^1$ Hyi | π$^1$ | | 14141 | 10418 | 02$^h$ 14$^m$ 14,50$^s$ | −67° 50′ 29,6″ | 5,57 | −1,21 | 739 | M1III | |
| π$^2$ Hyi | π$^2$ | | 14287 | 10513 | 02$^h$ 15$^m$ 28,56$^s$ | −67° 44′ 46,8″ | 5,67 | −0,11 | 468 | K2III | |
| BN Hyi | | BN | 20313 | 14521 | 03$^h$ 07$^m$ 31,90$^s$ | −78° 59′ 21,9″ | 5,67 | 1,26 | 248 | F2II-III | Variable de type δ Sct |
| | | | 10615 | 7921 | 01$^h$ 41$^m$ 47,95$^s$ | −60° 47′ 21,3″ | 5,70 | 0,42 | 371 | K2/K3III | |
| | | | 8810 | 6631 | 01$^h$ 25$^m$ 05,28$^s$ | −64° 22′ 10,0″ | 5,92 | −1,53 | 1009 | M0III | |
| | | | 1801 | 1706 | 00$^h$ 21$^m$ 28,74$^s$ | −77° 25′ 36,7″ | 5,96 | −0,69 | 697 | K3III | |
| | | | 21722 | 15968 | 03$^h$ 25$^m$ 36,25$^s$ | −69° 20′ 11,7″ | 5,96 | 2,99 | 128 | F3V | |
| κ Hyi | κ | | 15248 | 11095 | 02$^h$ 22$^m$ 52,47$^s$ | −73° 38′ 45,0″ | 5,99 | 1,05 | 318 | K0III | |
| | | | 9896 | 7387 | 01$^h$ 35$^m$ 14,71$^s$ | −58° 08′ 21,8″ | 6,03 | 3,00 | 132 | F2V | |
| τ$^2$ Hyi | τ$^2$ | | 11604 | 8366 | 01$^h$ 47$^m$ 46,69$^s$ | −80° 10′ 34,2″ | 6,05 | 2,09 | 202 | F0III | |
| | | | 11995 | 8983 | 01$^h$ 55$^m$ 46,47$^s$ | −60° 51′ 40,1″ | 6,07 | 2,73 | 152 | F0IV/V | |
| | | | 12477 | 9318 | 01$^h$ 59$^m$ 41,08$^s$ | −66° 03′ 59,7″ | 6,09 | 0,50 | 428 | K2III | |
| | | | 10042 | 7271 | 01$^h$ 33$^m$ 39,26$^s$ | −78° 30′ 16,1″ | 6,11 | 0,46 | 441 | G3IV | |
| | | | 19940 | 14547 | 03$^h$ 07$^m$ 49,0$^s$ | −69° 15′ 53,8″ | 6,12 | 1,30 | 300 | K1III | |
| | | | 21563 | 15840 | 03$^h$ 24$^m$ 02,28$^s$ | −69° 37′ 28,7″ | 6,14 | −0,17 | 595 | A4:V+… | |
| σ Hyi | σ | | 12363 | 8991 | 01$^h$ 55$^m$ 50,25$^s$ | −78° 20′ 55,2″ | 6,15 | 3,07 | 135 | F5/F6IV/V | |
| | | | 10052 | 7506 | 01$^h$ 36$^m$ 44,77$^s$ | −58° 16′ 15,5″ | 6,18 | −0,78 | 805 | M3III | |
| CT Hyi | | CT | 24188 | 17543 | 03$^h$ 45$^m$ 23,70$^s$ | −71° 39′ 29,7″ | 6,26 | 0,50 | 463 | B8V | Variable de type α$^2$ CVn |
| τ$^1$ Hyi | τ$^1$ | | 10859 | 7879 | 01$^h$ 41$^m$ 21,29$^s$ | −79° 08′ 53,7″ | 6,33 | 0,91 | 395 | G6/G8III | |
| | | | 12270 | 9149 | 01$^h$ 57$^m$ 53,37$^s$ | −65° 25′ 28,9″ | 6,36 | 0,28 | 535 | G8II/III | |
| | | | 11944 | 8957 | 01$^h$ 55$^m$ 19,69$^s$ | −60° 18′ 44,6″ | 6,43 | 2,73 | 179 | F2V | |
| | | | 1221 | 1268 | 00$^h$ 15$^m$ 54,94$^s$ | −75° 54′ 41,8″ | 6,49 | −0,18 | 704 | G8/K0III | |
| η$^1$ Hyi | η$^1$ | | 11733 | 8751 | 01$^h$ 52$^m$ 34,74$^s$ | −67° 56′ 40,2″ | 6,77 | −0,03 | 748 | B9V | |
| GJ 3021 | | | 1237 | 1292 | 00$^h$ 16$^m$ 12,68$^s$ | −79° 51′ 04,3″ | 6,59 | 5,36 | 57 | G8,5Vk | Étoile binaire ; une exoplanète (Ab) connue |
| CN Hyi | | CN | 17653 | 12884 | 02$^h$ 45$^m$ 36,97$^s$ | −71° 14′ 09,4″ | 6,66 | | 195,8 | F6V | Variable de type W UMa |
| HD 10180 | | | 10180 | 7599 | 01$^h$ 37$^m$ 53,58$^s$ | −60° 30′ 41,5″ | 7,33 | 4,36 | 128 | G1V | 6 planètes confirmées (c, d, e, f, g et h), 3 non confirmées (b, i et j) |
| HD 20003 | | | 20003 | 14530 | 03$^h$ 07$^m$ 38$^s$ | -72° 19′ 19″ | 8,37 | | 143 | G8V | 2 planètes (b & c) |
| HD 19918 | | BT | 19918 | 14026 | 03$^h$ 00$^m$ 37,09$^s$ | −81° 54′ 07,3″ | 9,35 | | 801 | Ap… | Étoile Ap à oscillations rapides |
| HD 2685 | | | 2685 | | 00$^h$ 29$^m$ 19,0$^s$ | -76° 18′ 15″ | 9,59 | | 646 | Ap… | Une planète (b) connue |
| WASP-126 | | | | | 04$^h$ 13$^m$ 30,0$^s$ | -69° 13′ 37″ | 10,8 | | 763 | G2 | Une planète qui transite (b) |
| VW Hyi | | VW | | | 04$^h$ 09$^m$ 11,39$^s$ | −71° 17′ 41,3″ | 14,4 | | | | Variable de type SU UMa |
| SM 0313 | | | | | 03$^h$ 13$^m$ 00,36$^s$ | −67° 08′ 39,3″ | 14,7 | | | K | Une des plus vieilles étoiles connues |
| WX Hyi | | WX | | | 02$^h$ 09$^m$ 50,84$^s$ | −63° 18′ 39,9″ | 14,85 | | | | Variable de type SU UMa |
| BL Hyi | | BL | | | 01$^h$ 41$^m$ 00,38$^s$ | −67° 53′ 27,4″ | 14,9 | | | Am | Variable de type AM Her et binaire à éclipses |