Astronomy:List of stars in Hydrus

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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	00h 25m 39.20s	−77° 15′ 18.1″	2.79	3.45	24	G2IV	suspected variable, Vmax = 2.75m, Vmin = 2.81m
α Hyi	α		12311	9236	01h 58m 45.87s	−61° 34′ 11.7″	2.86	1.16	71	F0V	Head of Hydrus
γ Hyi	γ		24512	17678	03h 47m 14.23s	−74° 14′ 21.3″	3.26	−0.83	214	M2III	Foo Pih; semiregular variable
δ Hyi	δ		15008	11001	02h 21m 45.02s	−68° 39′ 33.9″	4.08	0.99	135	A3V
ε Hyi	ε		16978	12394	02h 39m 35.22s	−68° 16′ 01.0″	4.12	0.76	153	B9III
η2 Hyi	η2		11977	8928	01h 54m 56.01s	−67° 38′ 50.9″	4.68	0.57	217	G5III	has a planet (b)
ν Hyi	ν		18293	13244	02h 50m 28.54s	−75° 04′ 00.8″	4.76	−0.26	329	K3III
ζ Hyi	ζ		17566	12876	02h 45m 32.53s	−67° 37′ 00.2″	4.83	0.05	295	A2IV/V
λ Hyi	λ		4815	3781	00h 48m 35.12s	−74° 55′ 24.1″	5.09	1.10	205	K5III
μ Hyi	μ		16522	11757	02h 31m 40.12s	−79° 06′ 33.3″	5.27	0.51	292	G4III
θ Hyi	θ		19400	14131	03h 02m 15.40s	−71° 54′ 09.0″	5.51	−0.52	525	B8III/IV
ι Hyi	ι		21024	15201	03h 15m 57.36s	−77° 23′ 19.0″	5.51	3.17	96	F4IV-V
π1 Hyi	π1		14141	10418	02h 14m 14.50s	−67° 50′ 29.6″	5.57	−1.21	739	M1III	suspected variable, Vmax = 5.52m, Vmin = 5.58m
π2 Hyi	π2		14287	10513	02h 15m 28.56s	−67° 44′ 46.8″	5.67	−0.11	468	K2III
BN Hyi		BN	20313	14521	03h 07m 31.90s	−78° 59′ 21.9″	5.70	1.26	248	F2II-III	δ Sct variable, ΔV = 0.02m
HD 10615			10615	7921	01h 41m 47.95s	−60° 47′ 21.3″	5.70	0.42	371	K2/K3III
HD 8810			8810	6631	01h 25m 05.28s	−64° 22′ 10.0″	5.92	−1.53	1009	M0III
HD 1801			1801	1706	00h 21m 28.74s	−77° 25′ 36.7″	5.96	−0.69	697	K3III
HD 21722			21722	15968	03h 25m 36.25s	−69° 20′ 11.7″	5.96	2.99	128	F3V
κ Hyi	κ		15248	11095	02h 22m 52.47s	−73° 38′ 45.0″	5.99	1.05	318	K0III	suspected variable
HD 9896			9896	7387	01h 35m 14.71s	−58° 08′ 21.8″	6.03	3.00	132	F2V
τ2 Hyi	τ2		11604	8366	01h 47m 46.69s	−80° 10′ 34.2″	6.05	2.09	202	F0III
HD 11995			11995	8983	01h 55m 46.47s	−60° 51′ 40.1″	6.07	2.73	152	F0IV/V
HD 12477			12477	9318	01h 59m 41.08s	−66° 03′ 59.7″	6.09	0.50	428	K2III
HD 10042			10042	7271	01h 33m 39.26s	−78° 30′ 16.1″	6.11	0.46	441	G3IV
HD 19940			19940	14547	03h 07m 49.00s	−69° 15′ 53.8″	6.12	1.30	300	K1III
HD 21563			21563	15840	03h 24m 02.28s	−69° 37′ 28.7″	6.14	−0.17	595	A4:V+...
σ Hyi	σ		12363	8991	01h 55m 50.25s	−78° 20′ 55.2″	6.15	3.07	135	F5/F6IV/V
HD 10052			10052	7506	01h 36m 44.77s	−58° 16′ 15.5″	6.18	−0.78	805	M3III	semiregular variable, Vmax = 6.11m, Vmin = 6.23m
CT Hyi		CT	24188	17543	03h 45m 23.70s	−71° 39′ 29.7″	6.26	0.50	463	B8V	α2 CVn variable
τ1 Hyi	τ1		10859	7879	01h 41m 21.29s	−79° 08′ 53.7″	6.33	0.91	395	G6/G8III
HD 12270			12270	9149	01h 57m 53.37s	−65° 25′ 28.9″	6.36	0.28	535	G8II/III
HD 11944			11944	8957	01h 55m 19.69s	−60° 18′ 44.6″	6.43	2.73	179	F2V
HD 1221			1221	1268	00h 15m 54.94s	−75° 54′ 41.8″	6.49	−0.18	704	G8/K0III
GJ 3021			1237	1292	00h 16m 12.68s	−79° 51′ 04.3″	6.59	5.36	57	G8.5Vk	has a planet (b)
CN Hyi		CN	17653	12884	02h 45m 36.97s	−71° 14′ 09.4″	6.66		195.8	F6V	W UMa variable
η1 Hyi	η1		11733	8751	01h 52m 34.74s	−67° 56′ 40.2″	6.77	−0.03	748	B9V	suspected variable
HD 10180			10180	7599	01h 37m 53.58s	−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	03h 07m 38s	−72° 19′ 19″	8.37		143	G8V	has two planets (b & c)
HD 19918		BT	19918	14026	03h 00m 37.09s	−81° 54′ 07.3″	9.35		801	Ap...	rapidly oscillating Ap star
HD 2685			2685		00h 29m 19.0s	−76° 18′ 15″	9.59		646	Ap...	has a planet (b)
WASP-126					04h 13m 30.0s	−69° 13′ 37″	10.8		763	G2	has a transiting planet (b)
VW Hyi		VW			04h 09m 11.39s	−71° 17′ 41.3″	14.4				SU UMa variable, Vmax = 8.4m, Vmin = 14.4m, P = 0.074271 d
SMSS J031300.36-670839.3					03h 13m 00.36s	−67° 08′ 39.3″	14.7			K	oldest known star as of 2014
WX Hyi		WX			02h 09m 50.84s	−63° 18′ 39.9″	14.85				SU UMa variable, Vmax = 9.6m, Vmin = 14.85m, P = 0.074813 d
BL Hyi		BL			01h 41m 00.38s	−67° 53′ 27.4″	14.9			Am	AM Her variable and eclipsing binary, Vmax = 14.3m, Vmin = 18.6m, 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 (celestial coordinates)|Equinox J2000.0]]  • Dec = Declination for the Epoch/Equinox J2000.0  • vis. mag. = visual magnitude (m or mv), also known as apparent magnitude  • abs. mag. = absolute magnitude (Mv)  • 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.]

See also

• List of stars by constellation

References

• ESA (1997). "The Hipparcos and Tycho Catalogues". http://cdsarc.u-strasbg.fr/viz-bin/Cat?I/239. Retrieved 2006-12-26. 
• Kostjuk, N. D. (2002). "HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index". http://cdsarc.u-strasbg.fr/viz-bin/Cat?IV/27. Retrieved 2006-12-26. 
• Roman, N. G. (1987). "Identification of a Constellation from a Position". http://cdsarc.u-strasbg.fr/viz-bin/Cat?VI/42. Retrieved 2006-12-26. 
• Gould, B. A.. "Uranometria Argentina". Reprinted and updated by Pilcher, F. Archived from the original on 2012-02-27. https://web.archive.org/web/20120227032716/http://www.uranometriaargentina.com/. Retrieved 2010-07-16. 
• "AAVSO Website". American Association of Variable Star Observers. http://www.aavso.org. Retrieved 9 March 2014.