# List of stars in Hydrus

This is the list of notable stars in the constellation Hydrus, sorted by decreasing brightness.
| Name | B | Var | HD | HIP | RA | Dec | vis. mag. | abs. mag. | Dist. (ly) | Sp. class | Notes |
| β Hyi | β | | 2151 | 2021 | 00$^h$ 25$^m$ 39.20$^s$ | −77° 15′ 18.1″ | 2.79 | 3.45 | 24 | G2IV | suspected variable, V$_{max}$ = 2.75$^m$, V$_{min}$ = 2.81$^m$ |
| α Hyi | α | | 12311 | 9236 | 01$^h$ 58$^m$ 45.87$^s$ | −61° 34′ 11.7″ | 2.86 | 1.16 | 71 | F0V | Head of Hydrus |
| γ Hyi | γ | | 24512 | 17678 | 03$^h$ 47$^m$ 14.23$^s$ | −74° 14′ 21.3″ | 3.26 | −0.83 | 214 | M2III | Foo Pih; semiregular variable |
| 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 | has a planet (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 | F4IV-V | |
| π$^1$ Hyi | π$^1$ | | 14141 | 10418 | 02$^h$ 14$^m$ 14.50$^s$ | −67° 50′ 29.6″ | 5.57 | −1.21 | 739 | M1III | suspected variable, V$_{max}$ = 5.52$^m$, V$_{min}$ = 5.58$^m$ |
| 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″ | 5.70 | 1.26 | 248 | F2II-III | δ Sct variable, ΔV = 0.02$^m$ |
| HD 10615 | | | 10615 | 7921 | 01$^h$ 41$^m$ 47.95$^s$ | −60° 47′ 21.3″ | 5.70 | 0.42 | 371 | K2/K3III | |
| HD 8810 | | | 8810 | 6631 | 01$^h$ 25$^m$ 05.28$^s$ | −64° 22′ 10.0″ | 5.92 | −1.53 | 1009 | M0III | |
| HD 1801 | | | 1801 | 1706 | 00$^h$ 21$^m$ 28.74$^s$ | −77° 25′ 36.7″ | 5.96 | −0.69 | 697 | K3III | |
| HD 21722 | | | 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 | suspected variable |
| HD 9896 | | | 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 | |
| HD 11995 | | | 11995 | 8983 | 01$^h$ 55$^m$ 46.47$^s$ | −60° 51′ 40.1″ | 6.07 | 2.73 | 152 | F0IV/V | |
| HD 12477 | | | 12477 | 9318 | 01$^h$ 59$^m$ 41.08$^s$ | −66° 03′ 59.7″ | 6.09 | 0.50 | 428 | K2III | |
| HD 10042 | | | 10042 | 7271 | 01$^h$ 33$^m$ 39.26$^s$ | −78° 30′ 16.1″ | 6.11 | 0.46 | 441 | G3IV | |
| HD 19940 | | | 19940 | 14547 | 03$^h$ 07$^m$ 49.00$^s$ | −69° 15′ 53.8″ | 6.12 | 1.30 | 300 | K1III | |
| HD 21563 | | | 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 | |
| HD 10052 | | | 10052 | 7506 | 01$^h$ 36$^m$ 44.77$^s$ | −58° 16′ 15.5″ | 6.18 | −0.78 | 805 | M3III | semiregular variable, V$_{max}$ = 6.11$^m$, V$_{min}$ = 6.23$^m$ |
| CT Hyi | | CT | 24188 | 17543 | 03$^h$ 45$^m$ 23.70$^s$ | −71° 39′ 29.7″ | 6.26 | 0.50 | 463 | B8V | α$^2$ CVn variable |
| 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 | |
| HD 12270 | | | 12270 | 9149 | 01$^h$ 57$^m$ 53.37$^s$ | −65° 25′ 28.9″ | 6.36 | 0.28 | 535 | G8II/III | |
| HD 11944 | | | 11944 | 8957 | 01$^h$ 55$^m$ 19.69$^s$ | −60° 18′ 44.6″ | 6.43 | 2.73 | 179 | F2V | |
| HD 1221 | | | 1221 | 1268 | 00$^h$ 15$^m$ 54.94$^s$ | −75° 54′ 41.8″ | 6.49 | −0.18 | 704 | G8/K0III | |
| GJ 3021 | | | 1237 | 1292 | 00$^h$ 16$^m$ 12.68$^s$ | −79° 51′ 04.3″ | 6.59 | 5.36 | 57 | G8.5Vk | has a planet (b) |
| CN Hyi | | CN | 17653 | 12884 | 02$^h$ 45$^m$ 36.97$^s$ | −71° 14′ 09.4″ | 6.66 | | 195.8 | F6V | W UMa variable |
| η$^1$ Hyi | η$^1$ | | 11733 | 8751 | 01$^h$ 52$^m$ 34.74$^s$ | −67° 56′ 40.2″ | 6.77 | −0.03 | 748 | B9V | suspected variable |
| HD 10180 | | | 10180 | 7599 | 01$^h$ 37$^m$ 53.58$^s$ | −60° 30′ 41.5″ | 7.33 | 4.36 | 128 | G1V | has six confirmed planets (c, d, e, f, g and h) and three unconfirmed planets (b, i and j) |
| HD 20003 | | | 20003 | 14530 | 03$^h$ 07$^m$ 38$^s$ | −72° 19′ 19″ | 8.37 | | 143 | G8V | has two planets (b & c) |
| HD 19918 | | BT | 19918 | 14026 | 03$^h$ 00$^m$ 37.09$^s$ | −81° 54′ 07.3″ | 9.35 | | 801 | Ap... | rapidly oscillating Ap star |
| HD 2685 | | | 2685 | | 00$^h$ 29$^m$ 19.0$^s$ | −76° 18′ 15″ | 9.59 | | 646 | Ap... | has a planet (b) |
| WASP-126 | | | | | 04$^h$ 13$^m$ 30.0$^s$ | −69° 13′ 37″ | 10.8 | | 763 | G2 | has a transiting planet (b) |
| VW Hyi | | VW | | | 04$^h$ 09$^m$ 11.39$^s$ | −71° 17′ 41.3″ | 14.4 | | | | SU UMa variable, V$_{max}$ = 8.4$^m$, V$_{min}$ = 14.4$^m$, P = 0.074271 d |
| SMSS J031300.36-670839.3 | | | | | 03$^h$ 13$^m$ 00.36$^s$ | −67° 08′ 39.3″ | 14.7 | | | K | oldest known star as of 2014 |
| WX Hyi | | WX | | | 02$^h$ 09$^m$ 50.84$^s$ | −63° 18′ 39.9″ | 14.85 | | | | SU UMa variable, V$_{max}$ = 9.6$^m$, V$_{min}$ = 14.85$^m$, P = 0.074813 d |
| BL Hyi | | BL | | | 01$^h$ 41$^m$ 00.38$^s$ | −67° 53′ 27.4″ | 14.9 | | | Am | AM Her variable and eclipsing binary, V$_{max}$ = 14.3$^m$, V$_{min}$ = 18.6$^m$, P = 0.078915 d |
| Table legend:  • Name = Proper name  • B = Bayer designation  • F or/and G. = Flamsteed designation or Gould designation  • Var = Variable star designation  • HD = Henry Draper Catalogue designation number  • HIP = Hipparcos Catalogue designation number  • RA = Right ascension for the Epoch/Equinox J2000.0  • Dec = Declination for the Epoch/Equinox J2000.0  • vis. mag. = visual magnitude (m or m$_v$), also known as apparent magnitude  • abs. mag. = absolute magnitude (M$_v$)  • Dist. (ly) = Distance in light-years from Earth  • Sp. class = Spectral class of the star in the stellar classification system  • Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.] ||||||||||||