List of stars in Triangulum

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 Tri	β	4		13161	10064	Template:RA	Template:DEC	3.00	0.09	124	A5III
α Tri	α	2		11443	8796	Template:RA	Template:DEC	3.42	1.95	64	F6IV	Mothallah, Ras al Mothallah, Caput Trianguli; rotating ellipsoidal variable
γ Tri	γ	9		14055	10670	Template:RA	Template:DEC	4.03	1.24	118	A1Vnn
δ Tri	δ	8		13974	10644	Template:RA	Template:DEC	4.84	4.66	35	G0V
ι Tri	ι	6	TZ	13480	10280	Template:RA	Template:DEC	4.94	0.08	305	F5V comp SB	RS CVn variable, ΔV = 0.09m, P = 14.732 d
14 Tri		14		15656	11784	Template:RA	Template:DEC	5.15	−0.25	391	K5III	variable star, ΔV = 0.006m, P = 0.08576 d
7 Tri		7		13869	10559	Template:RA	Template:DEC	5.25	0.48	293	A0V
10 Tri		10		14252	10793	Template:RA	Template:DEC	5.29	0.13	350	A2V
12 Tri		12		15257	11486	Template:RA	Template:DEC	5.29	1.90	155	F0III
15 Tri		15		16058	12086	Template:RA	Template:DEC	5.38			M3III	suspected slow irregular variable, ΔV = 0.14m
R Tri			R	16210	12193	Template:RA	Template:DEC	5.40		1299	M4IIIe	Mira variable, Vmax = 5.4m, Vmin = 12.6m, P = 266.9 d
ε Tri	ε	3		12471	9570	Template:RA	Template:DEC	5.50	0.22	370	A2V	binary star
11 Tri		11		15176	11432	Template:RA	Template:DEC	5.55	0.83	286	K1III:
HD 10390				10390	7943	Template:RA	Template:DEC	5.63	1.13	259	B9IV-V
HD 11007				11007	8433	Template:RA	Template:DEC	5.78	3.60	89	F8V
HD 11928				11928	9132	Template:RA	Template:DEC	5.84	0.02	476	M2III	variable star, ΔV = 0.013m, P = 50.65856 d
HD 15755				15755	11840	Template:RA	Template:DEC	5.84	1.33	260	K0III
13 Tri		13		15335	11548	Template:RA	Template:DEC	5.89	3.45	100	G0V
HD 10348				10348	7906	Template:RA	Template:DEC	5.97	−0.06	523	K0III
HD 16187				16187	12160	Template:RA	Template:DEC	6.07	0.36	452	K0
HD 16220				16220	12200	Template:RA	Template:DEC	6.23	2.52	180	F8V
5 Tri		5		13372	10220	Template:RA	Template:DEC	6.24	0.39	482	A1m
HD 15464				15464	11651	Template:RA	Template:DEC	6.26	0.98	371	K1III	variable star, ΔV = 0.005m, P = 0.26973 d
HD 10588				10588	8086	Template:RA	Template:DEC	6.32	0.57	460	G8III-IV SB
HD 13747				13747	10446	Template:RA	Template:DEC	6.35	2.48	194	K1III
HD 9298				9298	7147	Template:RA	Template:DEC	6.39	−0.90	937	B7IIIMNp...
1 Tri		1		1047	7948	Template:RA	Template:DEC	7.52	0.78	730	A2V
HD 13189				13189	10085	Template:RA	Template:DEC	7.57	1.23	602	K3II	has a planet or a brown dwarf companion (b)
HD 9446				9446	7245	Template:RA	Template:DEC	8.35	4.74	172	G5V	has two planets (b & c)
HD 12545			XX	12545	9630	Template:RA	Template:DEC	8.42		522	K0III	RS CVn variable, Vmax = 8.1m, Vmin = 8.7m, P = 24.26007 d
X Tri			X	12211	9383	Template:RA	Template:DEC	8.86	2.76	541	A7V	Algol variable, Vmax = 8.55m, Vmin = 11.27m, P = 0.9715352 d
V Tri			V			Template:RA	Template:DEC	10.96			A3	β Lyr variable, Vmax = 10.7m, Vmin = 11.8m, P = 0.5852057 d
RV Tri			RV			Template:RA	Template:DEC	11.21			A2:	Algol variable
WASP-56						Template:RA	Template:DEC	11.46			G6	has a planet
RW Tri			RW			Template:RA	Template:DEC	12.50			M0V	Algol variable and nova-like star, Vmax = 12.5m, Vmin = 15.61m, P = 0.231883392 d
HAT-P-38						Template:RA	Template:DEC	12.56		812	G	Horna; has a planet (b)
AI Tri			AI			Template:RA	Template:DEC	15.30			M2.5	AM Her variable, Vmax = 14.7m, Vmin = 18.2m, P = 0.19174566 d
Var 83						Template:RA	Template:DEC	15.40		3000000		in Triangulum Galaxy; luminous blue variable, Vmax = 15.4m, Vmin = 16.6m; one of the most luminous stars known
Var B						Template:RA	Template:DEC	16.21		3000000	A	in Triangulum Galaxy; luminous blue variable; one of the most luminous stars known
Var C						Template:RA	Template:DEC	16.43		3000000	B	in Triangulum Galaxy; luminous blue variable, Vmax = 15.2m, Vmin = 17.2m; one of the most luminous stars known
Var 19						Template:RA	Template:DEC	18.20		3000000		in Triangulum Galaxy; formerly thought to be a Cepheid variable
M33 X-7						Template:RA	Template:DEC	18.70		3000000	O6III	in Triangulum Galaxy; High-mass X-ray binary; contains largest known stellar black hole
Var A						Template:RA	Template:DEC			3000000	F8Ia	in Triangulum Galaxy; luminous blue variable; one of the most luminous stars known
Var 2			Y			Template:RA	Template:DEC			3000000	Ofpe/WN9	in Triangulum Galaxy; luminous blue variable; one of the most luminous stars known
LSPM J0207+3331						Template:RA	Template:DEC			145	DA	oldest white dwarf to host a circumstellar disk

See also

• List of stars by constellation