List of stars in Triangulum - AbsoluteAstronomy.com

This is the list of notable star

Star

A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...

s in the constellation

Constellation

In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....

Triangulum
Triangulum
Triangulum is a small constellation in the northern sky. Its name is Latin for triangle, and it should not be confused with Triangulum Australe in the southern sky. Its name derives from its three brightest stars, of third and fourth magnitude, which form a nearly isosceles long and narrow triangle...

, sorted by decreasing brightness.

Name	B Bayer designation A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name...	F Flamsteed designation Flamsteed designations for stars are similar to Bayer designations, except that they use numbers instead of Greek letters. Each star is assigned a number and the Latin genitive of the constellation it lies in...	HD Henry Draper Catalogue The Henry Draper Catalogue is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension , published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the...	HIP	vis. mag. Apparent magnitude The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere...	abs. mag. Absolute magnitude Absolute magnitude is the measure of a celestial object's intrinsic brightness. it is also the apparent magnitude a star would have if it were 32.6 light years away from Earth...	Dist. (ly)	Sp. class Stellar classification In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure...	Notes
β Tri Beta Trianguli Beta Trianguli is the brightest star in the constellation Triangulum.In Chinese traditional astronomy, it was the 9th star of Tien Ta Tseang ....	β	4	13161	10064	3.00	0.09	124	A5III	Deltotum, Deltoton
α Tri Alpha Trianguli Alpha Trianguli is a binary star in the constellation Triangulum. It has the traditional names Mothallah or Ras al Muthallah , and Caput Trianguli, from the Arabic رأس المثلث ra’s al-muθallaθ "the head of the triangle" and its Latin translation.Alpha Trianguli...	α	2	11443	8796	3.42	1.95	64	F6IV	Mothallah, Metallah, Ras al Mothallah, Elmuthalleth, Caput Trianguli
γ Tri Gamma Trianguli Gamma Trianguli is a star in the constellation Triangulum.Gamma Trianguli is a white A-type main sequence dwarf with an apparent magnitude of +4.03. It is approximately 118 light years from Earth....	γ	9	14055	10670	4.03	1.24	118	A1Vnn
δ Tri Delta Trianguli Delta Trianguli is a spectroscopic binary star system approximately away in the constellation of Triangulum. The primary star is a yellow dwarf, while the secondary star is thought to be an orange dwarf...	δ	8	13974	10644	4.84	4.66	35	G0V
6 Tri	ι	6	13480	10280	4.94	0.08	305	F5V comp SB	TZ Tri; RS CVn variable RS Canum Venaticorum variable RS Canum Venaticorum variables are a type of variable star. They are close binary stars having active chromospheres which can cause large stellar spots. These spots are believed to cause variations in their observed luminosity...
14 Tri		14	15656	11784	5.15	−0.25	391	K5III
7 Tri		7	13869	10559	5.25	0.48	293	A0V
10 Tri		10	14252	10793	5.29	0.13	350	A2V
12 Tri		12	15257	11486	5.29	1.90	155	F0III
R Tri			16210	12193	5.30		1299	M4IIIe	Mira variable Mira variable Mira variables , named after the star Mira, are a class of pulsating variable stars characterized by very red colors, pulsation periods longer than 100 days, and light amplitudes greater than one magnitude in infrared and 2.5 magnitude in visual...
15 Tri		15	16058	12086	5.38			M3III
ε Tri Epsilon Trianguli Epsilon Trianguli is a binary star in the constellation Triangulum. It is approximately 370 light years from Earth....	ε	3	12471	9570	5.50	0.22	370	A2V	binary star Binary star A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star, comes, or secondary...
11 Tri		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
			15755	11840	5.84	1.33	260	K0III
13 Tri		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 Tri		5	13372	10220	6.24	0.39	482	A1m
			15464	11651	6.26	0.98	371	K1III
			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...
HD 13189 HD 13189 HD 13189 is an 8th magnitude star in Triangulum constellation. It is an orange bright giant star located 603 light years away. The mass is 3.5 times the Sun, which indicated that it was a B-type star when it was a main-sequence star...			13189	10085	7.57	1.23	602	K3II	has a planet or a brown dwarf Brown dwarf Brown dwarfs are sub-stellar objects which are too low in mass to sustain hydrogen-1 fusion reactions in their cores, which is characteristic of stars on the main sequence. Brown dwarfs have fully convective surfaces and interiors, with no chemical differentiation by depth... companion (b)
HD 9446 HD 9446 HD 9446 is a G5V class star, located about 172 light-years away in the constellation of Triangulum.- Planetary system :On 5 January 2010, scientists announced the discovery of two planets orbiting around HD 9446.- References :...			9446	7245	8.35	4.74	172	G5V	has two planets Extrasolar planet An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars... (b HD 9446 b HD 9446 b is an exoplanet discovered in 2010 orbiting the star HD 9446 in the constellation Triangulum, 53 parsecs from Earth.- References :... & c HD 9446 c HD 9446 c is an exoplanet discovered in 2010 orbiting the star HD 9446 in the constellation Triangulum, 53 parsecs from Earth.- References :... )
X Tri			12211	9383	8.86	2.76	541	A7V

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