List of stars in Triangulum explained

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

Name	B	F	Var	HD	HIP	RA	Dec	vis. mag.	abs. mag.	Dist. (ly)	Sp. class	Notes
	β	4		13161	10064			3.00	0.09	124	A5III
	α	2		11443	8796			3.42	1.95	64	F6IV	Mothallah, Ras al Mothallah, Caput Trianguli; rotating ellipsoidal variable
	γ	9		14055	10670			4.03	1.24	118	A1Vnn
	δ	8		13974	10644			4.84	4.66	35	G0V
	ι	6	TZ	13480	10280			4.94	0.08	305	F5V comp SB	RS CVn variable,
		14		15656	11784			5.15	−0.25	391	K5III	variable star,
		7		13869	10559			5.25	0.48	293	A0V
		10		14252	10793			5.29	0.13	350	A2V
		12		15257	11486			5.29	1.90	155	F0III
		15		16058	12086			5.38			M3III	suspected slow irregular variable,
			R	16210	12193			5.40		1299	M4IIIe	Mira variable,
	ε	3		12471	9570			5.50	0.22	370	A2V	binary star
		11		15176	11432			5.55	0.83	286	K1III:
				10390	7943			5.63	1.13	259	B9IV-V
				11007	8433			5.78	3.60	89	F8V
				11928	9132			5.84	0.02	476	M2III	variable star,
				15755	11840			5.84	1.33	260	K0III
		13		15335	11548			5.89	3.45	100	G0V
				10348	7906			5.97	−0.06	523	K0III
				16187	12160			6.07	0.36	452	K0
				16220	12200			6.23	2.52	180	F8V
		5		13372	10220			6.24	0.39	482	A1m
				15464	11651			6.26	0.98	371	K1III	variable star,
				10588	8086			6.32	0.57	460	G8III-IV SB
				13747	10446			6.35	2.48	194	K1III
				9298	7147			6.39	−0.90	937	B7IIIMNp...
		1		1047	7948			7.52	0.78	730	A2V
				13189	10085			7.57	1.23	602	K3II	has a planet or a brown dwarf companion (b)
				9446	7245			8.35	4.74	172	G5V	has two planets (b & c)
			XX	12545	9630			8.42		522	K0III	RS CVn variable,	-				X	12211	9383			8.86	2.76	541	A7V	Algol variable,
			V					10.96			A3	β Lyr variable,
			RV					11.21			A2:	Algol variable
								11.46			G6	has a planet
			RW					12.50			M0V	Algol variable and nova-like star,
								12.56		812	G	Horna; has a planet (b)
			AI					15.30			M2.5	AM Her variable,
								15.40		3000000		in Triangulum Galaxy; luminous blue variable, ; one of the most luminous stars known
								16.21		3000000	A	in Triangulum Galaxy; luminous blue variable; one of the most luminous stars known
								16.43		3000000	B	in Triangulum Galaxy; luminous blue variable, ; one of the most luminous stars known
								18.20		3000000		in Triangulum Galaxy; formerly thought to be a Cepheid variable
								18.70		3000000	O6III	in Triangulum Galaxy; High-mass X-ray binary; contains largest known stellar black hole
										3000000	F8Ia	in Triangulum Galaxy; luminous blue variable; one of the most luminous stars known
			Y							3000000	Ofpe/WN9	in Triangulum Galaxy; luminous blue variable; one of the most luminous stars known
										145	DA	oldest white dwarf to host a circumstellar disk

See also

• List of stars by constellation

References

• Web site: ESA . European Space Agency . The Hipparcos and Tycho Catalogues . 1997 . 30 July 2012 .
• Web site: Kostjuk . N. D. . HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index . 2002 . 30 July 2012 .
• Web site: Roman . N. G. . Identification of a Constellation from a Position . 1987 . 30 July 2012 .
• Web site: Samus . N. N. . Durlevich . O. V. . etal . Combined General Catalogue of Variable Stars (GCVS4.2) . 2004 . 30 July 2012 .
• Web site: Samus . N. N. . Durlevich . O. V. . etal . General Catalog of Variable Stars (GCVS database, version 2012Feb) . 2012 . 30 July 2012 .
• Web site: AAVSO Website . American Association of Variable Star Observers . 9 March 2014 .