List of stars in Equuleus

Last updated March 24, 2023

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

Name

B

F

G.

Var

HD

HIP

RA

Dec

vis.
mag.

abs.
mag.

Dist. (ly)

Sp. class

Notes

α Equ

α

8

20

202447

104987

21^h 15^m 49.40^s

+05° 14′ 53.1″

3.92

0.14

186

G0III+...

Kitalpha, Kitel Phard, Kitalphar; spectroscopic binary

δ Equ

δ

7

19

202275

104858

21^h 14^m 28.79^s

+10° 00′ 27.8″

4.47

3.14

60

F5V+...

spectroscopic binary

γ Equ

γ

5

15

201601

104521

21^h 10^m 20.47^s

+10° 07′ 55.0″

4.70

1.97

115

F0p

double star; Rapidly oscillating Ap star, V_max = 4.70^m, V_min = 4.71^m, P = 0.00811 d

β Equ

β

10

29

203562

105570

21^h 22^m 53.58^s

+06° 48′ 40.0″

5.16

−0.05

360

A3V

multiple star

ε Equ

ε

1

4

199766

103569

20^h 59^m 04.54^s

+04° 17′ 37.8″

5.30

1.40

197

F5III...

spectroscopic binary

ζ Equ

ζ

3

8

200644

104031

21^h 04^m 34.64^s

+05° 30′ 10.3″

5.63

−0.99

688

K5III

double star

9 Equ

9

24

203291

105413

21^h 21^m 04.80^s

+07° 21′ 16.4″

5.81

−1.75

1058

M2III

suspected variable; V_max = 5.86^m, V_min = 5.91^m

4 Equ

4

9

200790

104101

21^h 05^m 26.79^s

+05° 57′ 30.6″

5.94

3.10

120

F8V

double star

HD 202951

202951

105224

21^h 18^m 52.01^s

+11° 12′ 12.0″

5.97

−1.96

1254

K5III

rotating variable, V_max = 5.96^m, V_min = 6.01^m

HD 199942

5

199942

103652

21^h 00^m 03.95^s

+07° 30′ 58.2″

5.98

1.69

235

A7V

double star

6 Equ

6

15

201616

104538

21^h 10^m 31.31^s

+10° 02′ 56.0″

6.07

0.24

479

A2Vs

optical double with γ Equ

HD 201298

12

201298

104357

21^h 08^m 28.15^s

+06° 59′ 21.7″

6.14

−0.89

832

M0III

HD 203842

30

203842

105695

21^h 24^m 24.52^s

+10° 10′ 27.1″

6.33

1.21

344

F5III

HD 200661

7

200661

104041

21^h 04^m 41.63^s

+02° 56′ 32.1″

6.41

0.97

400

K0

HD 201507

13

201507

104481

21^h 09^m 58.26^s

+02° 56′ 37.0″

6.44

1.63

299

F2V

HD 200964

10

200964

104202

21^h 06^m 39.79^s

+03° 48′ 10.8″

6.64

2.35

223

K0IV

has two planets (b & c)

λ Equ

λ

2

200256

103813

21^h 02^m 12.51^s

+07° 10′ 47.3″

6.72

1.68

332

F8

double star

HD 202908

202908

105200

21^h 18^m 34.87^s

+11° 34′ 7.8″

7.01

3.63

155

G0V + G6V

triple star

Gliese 818

200779

104092

21^h 05^m 20^s

+07° 04′ 09″

8.27

7.41

48

K6V

multiple star

HD 203473

203473

105521

21^h 22^m 18.9^s

+05° 01′ 25″

8.23

4.20

237

G6V

has a planet (b)

S Equ

S

199454

103419

20^h 57^m 12.84^s

+05° 04′ 49.4″

8.37

-0.57

2000

B9V + F9III-IV

Algol variable, V_max = 8.35^m, V_min = 10.40^m, P = 3.4360969 d

SY Equ

SY

203664

105614

21^h 23^m 28.81^s

+09° 55′ 54.9″

8.53

-2.02

4200

B0.5IIIn

Beta Cephei variable, V_max = 8.520^m, V_min = 8.585^m, P = 0.1658677 d

R Equ

R

202051

21^h 13^m 11.77^s

+12° 48′ 08.77″

8.70

4

M3e

Mira variable, V_max = 8.4^m, V_min = 15.0^m, P = 262.28 d

WASP-90

21^h 02^m 08.0^s

+07° 03′ 24″

11.7

1109

F6

has a transiting planet (b)

HAT-P-65

21^h 03^m 37.0^s

+11° 59′ 22″

13.15

3.53

2743

has a transiting planet (b)

U Equ

U

20^h 57^m 16.2^s

+02° 58′ 45″

14.5

3.57

5000

M

slow irregular variable, V_max = 13.4^m, V_min = 14.5^m

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 2006-12-26.
Kostjuk, N. D. (2002). "HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index" . Retrieved 2006-12-26.
Roman, N. G. (1987). "Identification of a Constellation from a Position" . Retrieved 2006-12-26.
"SIMBAD Astronomical Database". Centre de Données astronomiques de Strasbourg. Retrieved 2007-01-02.
Gould, B. A. "Uranometria Argentina". Reprinted and updated by Pilcher, F. Archived from the original on 2012-02-27. Retrieved 2010-07-19.
"AAVSO Website". American Association of Variable Star Observers. Retrieved 9 March 2014.

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List of stars in Equuleus

See also

References