List of stars in Corona Borealis

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

Name B F Var HD HIP RA Dec vis.
mag.
abs.
mag.
Dist. (ly) Sp. class Notes
α CrB α 5 139006 76267 15h 34m 41.19s +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 15h 27m 49.85s +29° 06′ 19.8″ 3.66 0.94 114 F0p Nusakan; α² CVn variable, Vmax = 3.65m, Vmin = 3.72m, P = 18.487 d
γ CrB γ 8 140436 76952 15h 42m 44.64s +26° 17′ 43.9″ 3.81 0.57 145 A1Vs δ Sct variable, Vmax = 3.8m, Vmin = 3.86m, P = 0.03 d
θ CrB θ 4 138749 76127 15h 32m 55.80s +31° 21′ 33.0″ 4.14 −0.76 311 B6Vnn Be star, Vmax = 4.06m, Vmin = 4.33m
ε CrB ε 13 143107 78159 15h 57m 35.30s +26° 52′ 40.9″ 4.14 −0.10 230 K3III has a planet (b)
δ CrB δ 10 141714 77512 15h 49m 35.70s +26° 04′ 06.8″ 4.59 1.06 165 G5III-IV RS CVn variable, Vmax = 4.57m, Vmin = 4.69m
ζ2 CrB ζ2 7 139891 76669 15h 39m 22.68s +36° 38′ 09.0″ 4.64 −1.17 473 B7V+...
τ CrB τ 16 145328 79119 16h 08m 58.33s +36° 29′ 24.4″ 4.73 2.03 113 K0III-IV suspected variable, Vmax = 4.72m, Vmin = 4.82m
κ CrB κ 11 142091 77655 15h 51m 13.94s +35° 39′ 29.6″ 4.79 2.32 101 K0III-IV has a planet (b)
ξ CrB ξ 19 147677 80181 16h 22m 05.89s +30° 53′ 30.2″ 4.86 1.11 184 K0III suspected variable
ι CrB ι 14 143807 78493 16h 01m 26.59s +29° 51′ 03.9″ 4.98 −0.18 351 A0p... suspected α2 CVn variable, Vmax = 4.96m, Vmin = 5.08m
η CrB A η 2 137107 75312 15h 23m 12.23s +30° 17′ 17.7″ 4.99 3.64 61 G2V double star; suspected variable, Vmax = 4.94m, Vmin = 5.02m
μ CrB μ 6 139153 76307 15h 35m 14.90s +39° 00′ 36.2″ 5.14 −1.08 571 M2III variable star, ΔV = 0.015m, P = 40.73320 d
ν1 CrB ν1 20 147749 80197 16h 22m 21.42s +33° 47′ 56.9″ 5.20 −0.96 555 M2III variable star, ΔV = 0.011m, P = 4.41014 d
ρ CrB ρ 15 143761 78459 16h 01m 02.80s +33° 18′ 19.4″ 5.39 4.18 57 G2V has a planet (b)
ν2 CrB ν2 21 147767 80214 16h 22m 29.22s +33° 42′ 12.1″ 5.40 −0.72 545 K5III suspected variable
λ CrB λ 12 142908 78012 15h 55m 47.57s +37° 56′ 48.3″ 5.43 2.34 135 F0IV suspected variable, Vmax = 5.37m, Vmin = 5.44m
ο CrB ο 1 136512 75049 15h 20m 08.64s +29° 36′ 58.7″ 5.51 0.89 274 K0III has a planet (b)
σ CrB A σ2 17 TZ 146361 79607 16h 14m 41.04s +33° 51′ 31.8″ 5.56 3.78 71 F8V RS CVn variable, Vmax = 5.54m, Vmin = 5.69m, P = 1.1397912 d
π CrB π 9 140716 77048 15h 43m 59.32s +32° 30′ 57.0″ 5.57 1.16 249 G9III:
HD 143435 143435 78276 15h 58m 57.70s +36° 38′ 37.3″ 5.61 −1.59 898 K5III suspected variable
HD 145849 145849 79358 16h 11m 48.06s +36° 25′ 30.6″ 5.62 −0.74 610 K3III SB
HD 144208 144208 78649 16h 03m 19.36s +36° 37′ 54.6″ 5.79 −0.84 691 A2V+...
υ CrB υ 18 146738 79757 16h 16m 44.77s +29° 09′ 01.1″ 5.80 −1.22 825 A3V suspected variable, Vmax = 5.78m, Vmin = 5.88m
R CrB R 141527 77442 15h 48m 34.42s +28° 09′ 24.4″ 5.89 −5.45 6037 C0,0 (F8pe) prototype R CrB variable, Vmax = 5.71m, Vmin = 15.2m
η CrB B η 2 137108 15h 23m 12.30s +30° 17′ 16.0″ 6.08 component of the η CrB system
HD 139761 139761 76617 15h 38m 48.86s +34° 40′ 30.3″ 6.12 0.37 460 K0
HD 146537 146537 79686 16h 15m 47.34s +27° 25′ 19.8″ 6.14 0.48 442 K2
HD 139284 139284 76366 15h 35m 49.19s +38° 22′ 26.2″ 6.30 −0.31 683 K2
HD 145802 145802 79350 16h 11m 39.60s +33° 20′ 33.8″ 6.30 0.31 515 K2III suspected variable
HD 136403 136403 75000 15h 19m 30.07s +32° 30′ 53.6″ 6.33 1.67 278 A2m
HD 138525 138525 76006 15h 31m 22.31s +36° 37′ 00.0″ 6.39 2.19 225 F6III
HD 145957 145957 79385 16h 12m 06.55s +39° 03′ 20.1″ 6.39 −0.73 867 K0
HD 141456 141456 77397 15h 48m 01.79s +31° 44′ 08.6″ 6.41 −0.60 823 K5 variable star, ΔV = 0.008m, P = 9.14829 d
23 Her 23 147835 80247 16h 22m 56.48s +32° 19′ 58.9″ 6.41 0.42 515 A4Vn
HD 138341 138341 75919 15h 30m 22.78s +31° 17′ 09.5″ 6.45 0.70 460 A4IV
HD 139389 139389 76456 15h 36m 53.37s +29° 59′ 28.8″ 6.46 3.68 117 F5V:
HD 145976 145976 79441 16h 12m 45.43s +26° 40′ 14.4″ 6.48 2.16 238 F3V
HD 145457 145457 79219 16h 10m 03.91s +26° 44′ 33.9″ 6.57 1.06 411 K0III has a planet (b)
σ CrB B σ1 17 146362 16h 14m 40.80s +33° 51′ 30.0″ 6.66 component of the σ CrB system
S CrB S 136753 75143 15h 21m 23.80s +31° 22′ 02.0″ 7.15 1762 M6.5-8e Mira variable, Vmax = 5.8m, Vmin = 14.1m, P = 360.26 d
RS CrB RS 143347 78235 15h 58m 30.76s +36° 01′ 19.7″ 7.44 1070 M7 semiregular variable
ADS 9731 139691 76563 15h 38m 12.91s +38° 16′ 48.6″ 7.80 349 F5+F5 6-star system
V CrB V 141826 77501 15h 49m 31.31s +39° 34′ 17.91″ 7.83 8800 C6,2e Algol variable, Vmax = 6.9m, Vmin = 12.6m, P = 357.63 d
U CrB U 136175 74881 15h 18m 11.35s +31° 38′ 49.4″ 7.83 811 B6V+F8III-IV Algol variable, Vmax = 7.66m, Vmin = 8.79m, P = 3.45220133 d
HD 140913 140913 77152 15h 43m 07.45s +28° 28′ 11.8″ 8.07 143.1 G0V solar twin with brown dwarf companion
RR CrB RR 140297 76844 15h 41m 26.23s +38° 33′ 26.6″ 8.20 1110 M3 semiregular variable, Vmax = 7.3m, Vmin = 8.2m, P = 60.8 d
YY CrB YY 141990 77598 15h 50m 32.43s +37° 50′ 07.6″ 8.69 301 F8V Vmax = 8.61m, Vmin = 9.12m, P = 0.38 d
RT CrB RT 139588 76551 15h 38m 03.03s +29° 29′ 13.9″ 10.22 G0 RS CVn variable, Vmax = 10.2m, Vmin = 10.82m, P = 5.117159 d
RW CrB RW 139815 76658 15h 39m 15.23s +29° 37′ 19.6″ 10.22 679 A8Vv Algol variable, Vmax = 10.22m, Vmin = 10.78m, P = 0.7264114 d
TW CrB TW 16h 06m 50.70s +27° 16′ 34.6″ 10.49 F8 Algol variable, Vmax = 10.3m, Vmin = 11.3m, P = 0.58887584 d
T CrB T 143454 78322 15h 59m 30.16s +25° 55′ 12.6″ 10.6 3500 M3III+p recurrent nova and rotating ellipsoidal variable, Vmax = 2.0m, Vmin = 10.8m, P = 227.6 d
BD +33 2642 77716 15h 51m 59.89s +32° 56′ 54.3″ 10.73 33000 B2IVp protoplanetary nebula
XO-1 16h 02m 11.84s +28° 10′ 10.43″ 11.30 652 has the transiting planet XO-1b
UW CrB UW 16h 05m 45.87s +25° 51′ 45.17″ 19.7 Low-mass X-ray binary
Table Legend:

See also[edit]

References[edit]