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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 | ||||
ζ CrB | ζ | 7 | 139891 | 76669 | 15h 39m 22.68s | +36° 38′ 09.0″ | 4.64 | −1.17 | 473 | B7V+... | ζ2, a spectroscopic triple, is 6" from ζ1 | ||||
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 companion, has two planets (b & c), now thought to be a low-mass star. | ||||
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 | Kamuy,[1] 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 | "Blaze Star"; 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 | Moldoveanu; 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:
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