Triangulum

Abbreviation: Tri
Genitive: Trianguli
Right Ascension: 2.11 hours
Declination: 32.03 degrees

Triangulum, the Triangle, is completely visible in latitudes North of 53 degrees South from March - May.

Triangulum is one of the original 48 constellations frist drawn by Ptolemy, According to legend the inhabitants of Sicily begged Jove to place their island into the heavens, Modern day interpretations associate the constellation with the famous Palermo Observatory.

Bright Stars | Deep Sky | Other Deep Sky | Variable Stars | Double Stars

Best Known Stars

(Yale Bright Star Catalog)

Common Name or Bayer Number 1	RA	DEC	Magnitude 2
BET TRI	2.00:9.00:32.62	+34.00:59.00:14.24	3.00
ALP TRI	1.00:53.00:4.90	+29.00:34.00:43.82	3.41
GAM TRI	2.00:17.00:18.87	+33.00:50.00:50.00	4.01
14 TRI	2.00:32.00:6.16	+36.00:8.00:50.20	5.15
12 TRI	2.00:28.00:9.97	+29.00:40.00:9.58	5.30

Deep Sky Objects

(PAS Catalog)

M-33

M-33, the Pinwheel galaxy. It is outstanding in good binoculars, but as its considerable total brightness is distributed quite evenly over an area of nearly four times that covered by the full Moon, its surface brightness is extremely low.

Other Deep Sky Objects

(Saguaro Astronomy Club Catalog)

Only Objects less than 10.0 Mag.

Object	R.A.	Dec.	Object Type 3	Mag.	Uranometria	Tirion
NGC 598	01 33.9	+30 40	GALXY	05.7	091	04
Cr 21	01 50.1	+27 15	OPNCL	08.2	128	04

Variable Stars

(General Catalog of Variable Stars)

Only Objects <= 8.0 magnitude

GCVS ID	R.A. (hh mm ss.ss)	Dec. (deg mm ss)	Variable Type 4	Mag. Min	Mag. Max
TZ Tri	2.00:9.00:27.80	+30.00:4.00:11.00	ELL/RS	0.09	5.19

Double Stars

(Saguaro Astronomy Club Catalog)

Only Objects <= 8.0 magnitude

Name	R.A. (hh mm.m)	Dec. (deg mm)	Mag 5	Sep 6	PA 7	Tirion	Uranometria
STF 227	02 12.4	30 18	5.2, 6.6	3.90	71	4	92
STF 232	02 14.7	30 24	8.0, 8.0	6.60	246	4	92
STF 239	02 17.4	28 44	7.0, 8.0	13.80	211	4	92/ 93/ 129
15 TRI	02 35.8	34 41	5.6, 6.8	141.30	17	4	93

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