# List of stars in Corona Borealis

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 | 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+... | ζ$^2$, a spectroscopic triple, is 6" from ζ$^1$ |
| 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 α$^2$ 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 |
| ν$^1$ CrB | ν$^1$ | 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. |
| ν$^2$ CrB | ν$^2$ | 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 | σ$^2$ | 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, has a planet (b) |
| σ CrB B | σ$^1$ | 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 | "Blaze Star"; 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.] |||||||||||||