List of stars in Triangulum

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

Notes

β Tri

13161

10064

02^h 09^m 32.52^s

+34° 59′ 14.6″

3.00

0.09

124

A5III

Deltotum, Deltoton; suspected variable

α Tri

11443

8796

01^h 53^m 04.90^s

+29° 34′ 45.8″

3.42

1.95

F6IV

Mothallah, Metallah, Ras al Mothallah, Elmuthalleth, Caput Trianguli; rotating ellipsoidal variable

γ Tri

14055

10670

02^h 17^m 18.84^s

+33° 50′ 50.4″

4.03

1.24

118

A1Vnn

δ Tri

13974

10644

02^h 17^m 02.42^s

+34° 13′ 29.4″

4.84

4.66

G0V

ι Tri

13480

10280

02^h 12^m 22.32^s

+30° 18′ 11.6″

4.94

0.08

305

F5V comp SB

RS CVn variable, ΔV = 0.09^m, P = 14.732 d

14 Tri

15656

11784

02^h 32^m 06.14^s

+36° 08′ 50.0″

5.15

−0.25

391

K5III

variable star, ΔV = 0.006^m, P = 0.08576 d

7 Tri

13869

10559

02^h 15^m 56.30^s

+33° 21′ 32.3″

5.25

0.48

293

A0V

10 Tri

14252

10793

02^h 18^m 56.99^s

+28° 38′ 33.6″

5.29

0.13

350

A2V

12 Tri

15257

11486

02^h 28^m 09.99^s

+29° 40′ 10.3″

5.29

1.90

155

F0III

15 Tri

16058

12086

02^h 35^m 46.80^s

+34° 41′ 15.7″

5.38

M3III

suspected slow irregular variable, ΔV = 0.14^m

R Tri

16210

12193

02^h 37^m 02.50^s

+34° 15′ 50.0″

5.40

1299

M4IIIe

Mira variable, V_max = 5.4^m, V_min = 12.6^m, P = 266.9 d

ε Tri

12471

9570

02^h 02^m 57.97^s

+33° 17′ 02.9″

5.50

0.22

370

A2V

binary star

11 Tri

15176

11432

02^h 27^m 27.79^s

+31° 48′ 04.9″

5.55

0.83

286

K1III:

HD 10390

10390

7943

01^h 42^m 03.45^s

+35° 14′ 44.8″

5.63

1.13

259

B9IV-V

HD 11007

11007

8433

01^h 48^m 41.68^s

+32° 41′ 22.2″

5.78

3.60

F8V

HD 11928

11928

9132

01^h 57^m 43.74^s

+27° 48′ 16.3″

5.84

0.02

476

M2III

variable star, ΔV = 0.013^m, P = 50.65856 d

HD 15755

15755

11840

02^h 32^m 52.66^s

+34° 32′ 32.8″

5.84

1.33

260

K0III

13 Tri

15335

11548

02^h 28^m 48.54^s

+29° 55′ 53.7″

5.89

3.45

100

G0V

HD 10348

10348

7906

01^h 41^m 39.24^s

+30° 02′ 49.7″

5.97

−0.06

523

K0III

HD 16187

16187

12160

02^h 36^m 43.05^s

+31° 36′ 27.6″

6.07

0.36

452

HD 16220

16220

12200

02^h 37^m 06.51^s

+32° 53′ 27.7″

6.23

2.52

180

F8V

5 Tri

13372

10220

02^h 11^m 25.00^s

+31° 31′ 35.1″

6.24

0.39

482

A1m

HD 15464

15464

11651

02^h 30^m 16.56^s

+33° 50′ 01.8″

6.26

0.98

371

K1III

variable star, ΔV = 0.005^m, P = 0.26973 d

HD 10588

10588

8086

01^h 43^m 50.15^s

+32° 11′ 31.2″

6.32

0.57

460

G8III-IV SB

HD 13747

13747

10446

02^h 14^m 37.88^s

+28° 41′ 29.1″

6.35

2.48

194

K1III

HD 9298

9298

7147

01^h 32^m 07.58^s

+34° 47′ 59.9″

6.39

−0.90

937

B7IIIMNp...

HD 13189

13189

10085

02^h 09^m 40.17^s

+32° 18′ 59.2″

7.57

1.23

602

K3II

has a planet or a brown dwarf companion (b)

HD 9446

9446

7245

01^h 33^m 20.18^s

+29° 15′ 54.5″

8.35

4.74

172

G5V

has two planets (b & c)

HD 12545

12545

9630

02^h 03^m 47.11^s

+35° 35′ 28.7″

8.42

522

K0III

RS CVn variable, V_max = 8.1^m, V_min = 8.7^m, P = 24.26007 d

X Tri

12211

9383

02^h 00^m 33.72^s

+27° 53′ 19.3″

8.86

2.76

541

A7V

Algol variable, V_max = 8.55^m, V_min = 11.27^m, P = 0.9715352 d

V Tri

01^h 31^m 47.10^s

+30° 22′ 01.6″

10.96

β Lyr variable, V_max = 10.7^m, V_min = 11.8^m, P = 0.5852057 d

RV Tri

02^h 13^m 18.16^s

+31° 01′ 01.6″

11.21

A2:

Algol variable

WASP-56

01^h 44^m 19.59^s

+31° 41′ 22.5″

11.46

has a planet

RW Tri

02^h 25^m 36.15^s

+28° 05′ 50.9″

12.50

M0V

Algol variable and nova-like star, V_max = 12.5^m, V_min = 15.61^m, P = 0.231883392 d

AI Tri

02^h 03^m 48.61^s

+29° 59′ 25.8″

15.30

M2.5

AM Her variable, V_max = 14.7^m, V_min = 18.2^m, P = 0.19174566 d

Var 83

01^h 34^m 10.91^s

+30° 34′ 37.4″

15.40

3000000

in Triangulum Galaxy; luminous blue variable, V_max = 15.4^m, V_min = 16.6^m; one of the most luminous stars known

Var B

01^h 33^m 49.20^s

+30° 38′ 09.1″

16.21

3000000

in Triangulum Galaxy; luminous blue variable; one of the most luminous stars known

Var C

01^h 33^m 35.14^s

+30° 36′ 00.4″

16.43

3000000

in Triangulum Galaxy; luminous blue variable, V_max = 15.2^m, V_min = 17.2^m; one of the most luminous stars known

Var 19

01^h 33^m 57.1^s

+30° 45′ 12″

18.20

3000000

in Triangulum Galaxy; formerly thought to be a Cepheid variable

M33 X-7

01^h 33^m 34.13^s

+30° 32′ 11.3″

18.70

3000000

O6III

in Triangulum Galaxy; High-mass X-ray binary; contains largest known stellar black hole

Var A

01^h 32^m 32.52^s

+30° 30′ 22.4″

3000000

F8Ia

in Triangulum Galaxy; luminous blue variable; one of the most luminous stars known

Var 2

01^h 34^m 18.4^s

+30° 38′ 27″

3000000

Ofpe/WN9

in Triangulum Galaxy; luminous blue variable; one of the most luminous stars known

Table Legend:

• Name = Proper name.
• B = Bayer designation.
• F or/and G. = Flamsteed designation or Gould designation.
• Var = Variable star designation
• HD = Henry Draper Catalogue designation number.
• HIP = Hipparcos Catalogue designation number.
• RA = Right Ascension for the Epoch/Equinox J2000.0.
• Dec = Declination for the Epoch/Equinox J2000.0.

• vis. mag. = visual magnitude (m or m_v), also known as apparent magnitude.
• abs. mag. = absolute magnitude (M_v).
• Dist. (ly) = Distance in light years from Earth.
• Sp. class = Spectral class of the star in the stellar classification system.
• Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.].

References

ESA (1997). "The Hipparcos and Tycho Catalogues". Retrieved 2012-07-30.
Kostjuk, N. D. (2002). "HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index". Retrieved 2012-07-30.
Roman, N. G. (1987). "Identification of a Constellation from a Position". Retrieved 2012-07-30.
Samus, N. N.; Durlevich, O. V.; et al. (2004). "Combined General Catalogue of Variable Stars (GCVS4.2)". Retrieved 2012-07-30.
Samus, N. N.; Durlevich, O. V.; et al. (2012). "General Catalog of Variable Stars (GCVS database, version 2012Feb)". Retrieved 2012-07-30.
"AAVSO Website". American Association of Variable Star Observers. Retrieved 9 March 2014.

Lists of stars by constellation

List of stars in ...

Andromeda Antlia Apus Aquarius Aquila Ara Argo Navis Aries Auriga Boötes Caelum Camelopardalis Cancer Canes Venatici Canis Major Canis Minor Capricornus Carina Cassiopeia Centaurus Cepheus Cetus Chamaeleon Circinus Columba Coma Berenices Corona Australis Corona Borealis Corvus Crater Crux Cygnus Delphinus Dorado Draco Equuleus Eridanus Fornax Gemini Grus Hercules Horologium Hydra Hydrus Indus Lacerta Leo Leo Minor Lepus Libra Lupus Lynx Lyra Mensa Microscopium Monoceros Musca Norma Octans Ophiuchus Orion Pavo Pegasus Perseus Phoenix Pictor Pisces Piscis Austrinus Puppis Pyxis Reticulum Sagitta Sagittarius Scorpius Sculptor Scutum Serpens Sextans Taurus Telescopium Triangulum Triangulum Australe Tucana Ursa Major Ursa Minor Vela Virgo Volans Vulpecula

Stars of Triangulum

Bayer	α (Mothallah) β γ δ ε ι

Flamsteed	1 5 7 10 11 12 13 14 15

Variable	R V X RV RW XX AI

HR	438 485 490 503 523 564 726 738 757 761

HD	9446 13189 13747

Other	M33 X-7 Var 2 Var 19 Var 83 Var A Var B Var C WASP-56

List

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List of stars in Triangulum

See also

References