List of stars in Apus explained

This is the list of notable stars in the constellation Apus, sorted by decreasing brightness.

Name	B	Var	HD	HIP	RA	Dec	vis. mag.	abs. mag.	Dist. (ly)	Sp. class	Notes
	α		129078	72370			3.83	−1.67	411	K5III
	γ		147675	81065			3.86	0.41	159	K0IV SB
	β		149324	81852			4.23	0.81	158	K0III	double star
	δ^1		145366	80047			4.68	−2.17	765	M4-M5III	visual double star with δ^2 Aps; semiregular variable,
	ζ		156277	84969			4.76	−0.14	312	K1III
	η		123998	69896			4.89	1.73	140	A2m...
	ε		124771	70248			5.06	−1.08	551	B4V	γ Cas variable
	δ^2		145388	80057			5.27	−1.27	663	K3III	visual double star with δ^1 Aps
		R	131109	73223			5.37	−0.22	428	K4III	not variable despite designation
	ι		156190	84979			5.39	−2.34	1144	B8/B9Vn...	binary star
	κ^1		137387	76013			5.52	-2.31	1200	B1npe	double star; γ Cas variable,
			148488	81141			5.50	−1.80	942	K1IIICN...
			130458	72833			5.59	0.63	320	G5III	double star
	κ^2		138800	76750			5.64	−1.12	734	B8IVe	triple star
	θ		122250	68815			5.69	0.67	328	M6.5III	semiregular variable,
			143346	78868			5.70	0.97	288	K1IIICNII
		NO	156513	85760			5.83	−1.15	811	M3III	semiregular variable,
			164712	89115			5.86	1.41	253	K3III	double star
			165259	89234			5.86	2.80	133	F5V	double star
			131425	73415			5.92	−1.23	876	G8II
			138867	76877			5.95	0.64	377	B9V
			122862	69090			6.02	3.73	93	G1V
			133981	74421			6.02	−1.06	849	B8/B9III
			126209	70874			6.06	0.04	522	K0/K1III
			161988	87926			6.08	−0.23	595	K2III	double star
			121439	68431			6.09	−0.65	728	B9III
			138289	76664			6.19	1.10	339	K2II
			131551	73394			6.20	0.15	529	B9V	double star
			154556	84158			6.21	1.99	228	K1IVCN...
			154972	84510			6.24	1.25	324	A0V
			128294	71870			6.34	0.05	592	B9III
			162337	88599			6.37	−0.89	924	K3/K4III
			137366	75959			6.39	−1.15	1052	B3V
			141846	78360			6.40	1.76	276	F3IV	double star
			124639	70418			6.42	−0.74	881	B8V	emission-line star
			129899	72670			6.44	−0.76	898	Ap...
			152010	82944			6.46	−2.08	1663	A5IV/V	double star
			124099	69778			6.48	−2.82	2362	K2IIp	semiregular variable,
			159558	86510			6.48	1.15	379	G8III
			134606	74653			6.85	4.74	86	G6IV	has three planets (b, c & d)
		NN	137509	76011			6.87	0.41	638	B8	α^2 CVn variable,
			131664	73408			8.13	4.38	183.5	G3V	has a stellar companion, initially thought to be a planet (B)
			137388	76351			8.71	5.81	124	K0/K1V	Karaka,^[1] has a planet (b)
		S	133444	74179			9.60	-1.28	4900	C+	R CrB variable,
			138403				10.47			O8(f)ep	central star of planetary nebula Hen 2-131
		Z					11.07				RV Tau variable,
		MY					13.75			DA4.1	ZZ Cet variable,

See also

• Lists of stars by constellation

References

• Web site: ESA . European Space Agency . The Hipparcos and Tycho Catalogues . 1997 . 26 December 2006 .
• Web site: Kostjuk . N. D. . HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index . 2002 . 26 December 2006 .
• Web site: Roman . N. G. . Identification of a Constellation from a Position . 1987 . 26 December 2006 .
• Web site: SIMBAD Astronomical Database . Centre de Données astronomiques de Strasbourg . 4 January 2007 .
• Web site: Samus . N. N. . Durlevich . O. V. . etal . Combined General Catalogue of Variable Stars (GCVS4.2) . 2004 . 28 March 2012 .
• Web site: Samus . N. N. . Durlevich . O. V. . etal . General Catalog of Variable Stars (GCVS database, version 2012Feb) . 2012 . 28 March 2012 .
• Web site: Dommanget . J. . Nys, O. . Catalogue of the Components of Double and Multiple Stars (CCDM) . 2002 . 5 January 2007 .
• Web site: Gould . B. A. . Uranometria Argentina . Reprinted and updated by Pilcher, F . 16 July 2010 . dead . https://web.archive.org/web/20120227032716/http://www.uranometriaargentina.com/ . 27 February 2012 .
• Web site: AAVSO Website . American Association of Variable Star Observers . 9 March 2014 .

Notes and References

1. Web site: New Zealand. NameExoWorlds. en. 2019-12-30.