List of stars in Corona Borealis

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

HIP

RA

Dec

Dist. (ly)

Notes

α

5

139006

76267

15^h 34^m 41.19^s

+26° 42′ 53.7″

2.22

0.42

75

A0V

Alphecca, Alphacca, Alphekka, Gemma, Gnosia, Gnosia Stella Coronae, Asteroth, Ashtaroth; Algol variable

β CrB

β

3

137909

75695

15^h 27^m 49.85^s

+29° 06′ 19.8″

3.66

0.94

114

F0p

Nusakan; α² CVn variable, V_max = 3.65^m, V_min = 3.72^m, P = 18.487 d

γ CrB

γ

8

140436

76952

15^h 42^m 44.64^s

+26° 17′ 43.9″

3.81

0.57

145

A1Vs

δ Sct variable, V_max = 3.8^m, V_min = 3.86^m, P = 0.03 d

θ CrB

θ

4

138749

76127

15^h 32^m 55.80^s

+31° 21′ 33.0″

4.14

−0.76

311

B6Vnn

Be star, V_max = 4.06^m, V_min = 4.33^m

ε CrB

ε

13

143107

78159

15^h 57^m 35.30^s

+26° 52′ 40.9″

4.14

−0.10

230

K3III

has a planet (b)

δ CrB

δ

10

141714

77512

15^h 49^m 35.70^s

+26° 04′ 06.8″

4.59

1.06

165

G5III-IV

RS CVn variable, V_max = 4.57^m, V_min = 4.69^m

ζ CrB

ζ

7

139891

76669

15^h 39^m 22.68^s

+36° 38′ 09.0″

4.64

−1.17

473

B7V+...

ζ², a spectroscopic triple, is 6" from ζ¹

τ CrB

τ

16

145328

79119

16^h 08^m 58.33^s

+36° 29′ 24.4″

4.73

2.03

113

K0III-IV

suspected variable, V_max = 4.72^m, V_min = 4.82^m

κ CrB

κ

11

142091

77655

15^h 51^m 13.94^s

+35° 39′ 29.6″

4.79

2.32

101

K0III-IV

has a planet (b)

ξ CrB

ξ

19

147677

80181

16^h 22^m 05.89^s

+30° 53′ 30.2″

4.86

1.11

184

K0III

suspected variable

ι CrB

ι

14

143807

78493

16^h 01^m 26.59^s

+29° 51′ 03.9″

4.98

−0.18

351

A0p...

suspected α² CVn variable, V_max = 4.96^m, V_min = 5.08^m

η CrB A

η

2

137107

75312

15^h 23^m 12.23^s

+30° 17′ 17.7″

4.99

3.64

61

G2V

double star; suspected variable, V_max = 4.94^m, V_min = 5.02^m

μ CrB

μ

6

139153

76307

15^h 35^m 14.90^s

+39° 00′ 36.2″

5.14

−1.08

571

M2III

variable star, ΔV = 0.015^m, P = 40.73320 d

ν¹ CrB

ν¹

20

147749

80197

16^h 22^m 21.42^s

+33° 47′ 56.9″

5.20

−0.96

555

M2III

variable star, ΔV = 0.011^m, P = 4.41014 d

ρ CrB

ρ

15

143761

78459

16^h 01^m 02.80^s

+33° 18′ 19.4″

5.39

4.18

57

G2V

has a companion, has two planets (b & c), now thought to be a low mass star.

ν² CrB

ν²

21

147767

80214

16^h 22^m 29.22^s

+33° 42′ 12.1″

5.40

−0.72

545

K5III

suspected variable

λ CrB

λ

12

142908

78012

15^h 55^m 47.57^s

+37° 56′ 48.3″

5.43

2.34

135

F0IV

suspected variable, V_max = 5.37^m, V_min = 5.44^m

ο CrB

ο

1

136512

75049

15^h 20^m 08.64^s

+29° 36′ 58.7″

5.51

0.89

274

K0III

has a planet (b)

σ CrB A

σ²

17

TZ

146361

79607

16^h 14^m 41.04^s

+33° 51′ 31.8″

5.56

3.78

71

F8V

RS CVn variable, V_max = 5.54^m, V_min = 5.69^m, P = 1.1397912 d

π CrB

π

9

140716

77048

15^h 43^m 59.32^s

+32° 30′ 57.0″

5.57

1.16

249

G9III:

HD 143435

143435

78276

15^h 58^m 57.70^s

+36° 38′ 37.3″

5.61

−1.59

898

K5III

suspected variable

HD 145849

145849

79358

16^h 11^m 48.06^s

+36° 25′ 30.6″

5.62

−0.74

610

K3III SB

HD 144208

144208

78649

16^h 03^m 19.36^s

+36° 37′ 54.6″

5.79

−0.84

691

A2V+...

υ CrB

υ

18

146738

79757

16^h 16^m 44.77^s

+29° 09′ 01.1″

5.80

−1.22

825

A3V

suspected variable, V_max = 5.78^m, V_min = 5.88^m

R CrB

R

141527

77442

15^h 48^m 34.42^s

+28° 09′ 24.4″

5.89

−5.45

6037

C0,0 (F8pe)

prototype R CrB variable, V_max = 5.71^m, V_min = 15.2^m

η CrB B

η

2

137108

15^h 23^m 12.30^s

+30° 17′ 16.0″

6.08

component of the η CrB system

HD 139761

139761

76617

15^h 38^m 48.86^s

+34° 40′ 30.3″

6.12

0.37

460

K0

HD 146537

146537

79686

16^h 15^m 47.34^s

+27° 25′ 19.8″

6.14

0.48

442

K2

HD 139284

139284

76366

15^h 35^m 49.19^s

+38° 22′ 26.2″

6.30

−0.31

683

K2

HD 145802

145802

79350

16^h 11^m 39.60^s

+33° 20′ 33.8″

6.30

0.31

515

K2III

suspected variable

HD 136403

136403

75000

15^h 19^m 30.07^s

+32° 30′ 53.6″

6.33

1.67

278

A2m

HD 138525

138525

76006

15^h 31^m 22.31^s

+36° 37′ 00.0″

6.39

2.19

225

F6III

HD 145957

145957

79385

16^h 12^m 06.55^s

+39° 03′ 20.1″

6.39

−0.73

867

K0

HD 141456

141456

77397

15^h 48^m 01.79^s

+31° 44′ 08.6″

6.41

−0.60

823

K5

variable star, ΔV = 0.008^m, P = 9.14829 d

23 Her

(23)

147835

80247

16^h 22^m 56.48^s

+32° 19′ 58.9″

6.41

0.42

515

A4Vn

HD 138341

138341

75919

15^h 30^m 22.78^s

+31° 17′ 09.5″

6.45

0.70

460

A4IV

HD 139389

139389

76456

15^h 36^m 53.37^s

+29° 59′ 28.8″

6.46

3.68

117

F5V:

HD 145976

145976

79441

16^h 12^m 45.43^s

+26° 40′ 14.4″

6.48

2.16

238

F3V

HD 145457

145457

79219

16^h 10^m 03.91^s

+26° 44′ 33.9″

6.57

1.06

411

K0III

Kamuy,[1] has a planet (b)

σ CrB B

σ¹

17

146362

16^h 14^m 40.80^s

+33° 51′ 30.0″

6.66

component of the σ CrB system

S CrB

S

136753

75143

15^h 21^m 23.80^s

+31° 22′ 02.0″

7.15

1762

M6.5-8e

Mira variable, V_max = 5.8^m, V_min = 14.1^m, P = 360.26 d

RS CrB

RS

143347

78235

15^h 58^m 30.76^s

+36° 01′ 19.7″

7.44

1070

M7

semiregular variable

ADS 9731

139691

76563

15^h 38^m 12.91^s

+38° 16′ 48.6″

7.80

349

F5+F5

6-star system

V CrB

V

141826

77501

15^h 49^m 31.31^s

+39° 34′ 17.91″

7.83

8800

C6,2e

Algol variable, V_max = 6.9^m, V_min = 12.6^m, P = 357.63 d

U CrB

U

136175

74881

15^h 18^m 11.35^s

+31° 38′ 49.4″

7.83

811

B6V+F8III-IV

Algol variable, V_max = 7.66^m, V_min = 8.79^m, P = 3.45220133 d

HD 140913

140913

77152

15^h 43^m 07.45^s

+28° 28′ 11.8″

8.07

143.1

G0V

solar twin with brown dwarf companion

RR CrB

RR

140297

76844

15^h 41^m 26.23^s

+38° 33′ 26.6″

8.20

1110

M3

semiregular variable, V_max = 7.3^m, V_min = 8.2^m, P = 60.8 d

YY CrB

YY

141990

77598

15^h 50^m 32.43^s

+37° 50′ 07.6″

8.69

301

F8V

V_max = 8.61^m, V_min = 9.12^m, P = 0.38 d

RT CrB

RT

139588

76551

15^h 38^m 03.03^s

+29° 29′ 13.9″

10.22

G0

RS CVn variable, V_max = 10.2^m, V_min = 10.82^m, P = 5.117159 d

RW CrB

RW

139815

76658

15^h 39^m 15.23^s

+29° 37′ 19.6″

10.22

679

A8Vv

Algol variable, V_max = 10.22^m, V_min = 10.78^m, P = 0.7264114 d

TW CrB

TW

16^h 06^m 50.70^s

+27° 16′ 34.6″

10.49

F8

Algol variable, V_max = 10.3^m, V_min = 11.3^m, P = 0.58887584 d

T CrB

T

143454

78322

15^h 59^m 30.16^s

+25° 55′ 12.6″

10.6

3500

M3III+p

recurrent nova and rotating ellipsoidal variable, V_max = 2.0^m, V_min = 10.8^m, P = 227.6 d

BD +33 2642

77716

15^h 51^m 59.89^s

+32° 56′ 54.3″

10.73

33000

B2IVp

protoplanetary nebula

XO-1

16^h 02^m 11.84^s

+28° 10′ 10.43″

11.30

652

Moldoveanu; has the transiting planet XO-1b

UW CrB

UW

16^h 05^m 45.87^s

+25° 51′ 45.17″

19.7

Low-mass X-ray binary

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

"Japan". NameExoworlds. Retrieved 2019-12-30.

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.
"AAVSO Website". American Association of Variable Star Observers. Retrieved 9 March 2014.

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[1] "Japan". NameExoworlds. Retrieved 2019-12-30.

List of stars in Corona Borealis

See also

References