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List of stars in Boötes

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This is the list of notable stars in the constellation Boötes, sorted by decreasing brightness. The genitive for stars in this constellation is Boötis and the IAU abbreviation is Boo. Hence, η Boo is Eta Boötis.

Name B F G. Var HD HIP RA Dec vis.
mag. 		abs.
mag. 		Dist. (ly) Sp. class Notes
Arcturus α 16 124897 69673 14 15 40.35 +19° 11′ 14.2″ −0.05 −0.31 37 K2IIIp Alramech, Al Simak Al Ramih, Al Simak Lanceator; 3rd brightest star, variable
ε Boo ε 36 129989 72105 14 44 59.22 +27° 04′ 27.2″ 2.37 −1.61 236 K0 II-III Izar, Mirak, Pulcherrima; binary star
η Boo η 8 121370 67927 13 54 41.12 +18° 23′ 54.9″ 2.68 2.41 37 G0IV Muphrid, Ramih al Ramih, Lancea Lanceator
γ Boo γ 27 127762 71075 14 32 04.76 +38° 18′ 28.4″ 3.04 0.96 85 A7IIIvar Seginus, Menkib al Aoua al Aisr, Humerus Sinister Latratoris; δ Sct variable, Vmax = 3.02, Vmin = 3.07, P = 0.290314 d
δ Boo δ 49 135722 74666 15 15 30.10 +33° 18′ 54.4″ 3.46 0.69 117 G8III Princeps.
β Boo β 42 133208 73555 15 01 56.79 +40° 23′ 26.3″ 3.49 −0.64 219 G8III Nekkar, Meres
ρ Boo ρ 25 127665 71053 14 31 49.86 +30° 22′ 16.1″ 3.57 0.27 149 K3III
ζ Boo ζ 30 129246 71795 14 41 08.92 +13° 43′ 42.0″ 3.78 0.06 180 A3IVn double star
θ Boo θ 23 126660 70497 14 25 12.02 +51° 51′ 06.2″ 4.04 3.22 48 F7V Asellus Primus
υ Boo υ 5 120477 67459 13 49 28.70 +15° 47′ 52.1″ 4.05 −0.33 245 K5IIIvar
λ Boo λ 19 125162 69732 14 16 23.18 +46° 05′ 16.5″ 4.18 1.81 97 A0sh Xuángē (玄戈)
μ Boo μ 51 137391 75411 15 24 29.54 +37° 22′ 37.1″ 4.31 1.46 121 F0V Alkalurops; double star
ζ Boo ζ 30 129247 14 41 08.90 +13° 43′ 42.0″ 4.43
σ Boo σ 28 128167 71284 14 34 40.69 +29° 44′ 41.3″ 4.47 3.52 50 F3Vwvar
π Boo π 29 129174 71762 14 40 43.56 +16° 25′ 05.9″ 4.49 −0.45 317 B9p MnHg Alazal; binary star
τ Boo τ 4 120136 67275 13 47 16.04 +17° 27′ 24.4″ 4.50 3.53 51 F7V has a planet (b)
ψ Boo ψ 43 133582 73745 15 04 26.86 +26° 56′ 51.6″ 4.52 0.10 250 K2III
κ Boo κ 17 124675 69483 14 13 28.95 +51° 47′ 24.0″ 4.53 1.14 155 A8IV Asellus Tertius; binary star; δ Sct variable, Vmax = 4.50, Vmin = 4.58, P = 0.06479 d
ξ Boo ξ 37 131156 72659 14 51 23.28 +19° 06′ 02.3″ 4.54 5.41 22 G8V + K4V BY Dra variable, Vmax = 4.52, Vmin = 4.67, P = 10.137 d
ο Boo ο 35 129972 72125 14 45 14.50 +16° 57′ 51.9″ 4.60 0.40 225 K0III
ι Boo ι 21 125161 69713 14 16 10.07 +51° 22′ 01.3″ 4.75 2.38 97 A9V Asellus Secundus; binary star, triple star; δ Sct variable, Vmax = 4.73, Vmin = 4.78, P = 0.027 d
HD 125351 A 125351 69879 14 17 59.82 +35° 30′ 34.1″ 4.80 0.63 223 K1III spectroscopic binary
W Boo 34 129712 71995 14 43 25.37 +26° 31′ 40.4″ 4.80 −2.38 888 M3III semiregular variable, Vmax = 4.49, Vmin = 5.40, P = 25 d
ω Boo ω 41 133124 73568 15 02 06.51 +25° 00′ 29.7″ 4.80 −0.41 359 K4III
12 Boo d 12 123999 69226 14 10 23.95 +25° 05′ 30.6″ 4.82 2.00 120 F9IVw
44 Boo i 44 133640 73695 15 03 47.68 +47° 39′ 14.5″ 4.83 4.30 42 G2V + G2V W UMa variable, Vmax = 4.70, Vmin = 4.86, P = 0.267819 d
20 Boo 20 125560 70027 14 19 45.32 +16° 18′ 24.5″ 4.84 1.01 190 K3III
HD 126128 126128 70327 14 23 22.74 +08° 26′ 47.9″ 4.86 0.76 215 A0V
31 Boo 31 6 129312 71832 14 41 38.76 +08° 09′ 42.3″ 4.86 −1.38 576 G8IIIvar
6 Boo e 6 120539 67480 13 49 42.82 +21° 15′ 50.6″ 4.92 −0.34 368 K4III
45 Boo c 45 134083 73996 15 07 17.95 +24° 52′ 10.5″ 4.93 3.46 64 F5V
ν Boo ν 53 138629 76041 15 31 46.99 +40° 53′ 57.7″ 4.98 −0.62 430 A5V
9 Boo 9 121710 68103 13 56 34.16 +27° 29′ 31.9″ 5.02 −1.47 648 K3IIIvar
ν Boo ν 52 138481 75973 15 30 55.75 +40° 49′ 59.0″ 5.04 −2.10 872 K5III
BY Boo BY 123657 69038 14 07 55.75 +43° 51′ 16.3″ 5.13 −0.64 465 M4.5:III irregular variable, Vmax = 4.98, Vmin = 5.33
134190 73909 15 06 16.67 +54° 33′ 22.6″ 5.24 0.73 260 G8III
φ Boo φ 54 139641 76534 15 37 49.55 +40° 21′ 11.8″ 5.25 1.76 163 G8III-IV Ceginus
CF Boo 13 CF 123782 69068 14 08 17.36 +49° 27′ 28.9″ 5.26 −0.90 556 M2III irregular variable, Vmax = 5.20, Vmin = 5.30
χ Boo χ 48 135502 74596 15 14 29.21 +29° 09′ 51.2″ 5.28 1.07 226 A2V
15 Boo 15 124679 69612 14 14 50.86 +10° 06′ 03.6″ 5.29 0.82 255 K1III
50 Boo 50 136849 75178 15 21 48.61 +32° 56′ 01.2″ 5.38 0.98 247 B9Vn
33 Boo 33 129002 71618 14 38 50.28 +44° 24′ 16.4″ 5.39 1.49 197 A1V
22 Boo f 22 126661 70602 14 26 27.41 +19° 13′ 36.6″ 5.40 0.68 286 F0m
18 Boo 18 125451 69989 14 19 16.22 +13° 00′ 15.8″ 5.41 3.33 85 F5IV
137704 75572 15 26 17.46 +34° 20′ 09.1″ 5.46 −0.42 489 K4III
131111 72582 14 50 29.80 +37° 16′ 18.5″ 5.47 1.53 200 K0III-IV
BP Boo BP 140728 76957 15 42 50.82 +52° 21′ 39.0″ 5.48 0.54 317 B9p... α CVn variable, ΔV = 0.02, P = 1.30488 d
133392 73634 15 03 06.08 +35° 12′ 20.8″ 5.52 0.89 275 G8III:
14 Boo 14 124570 69536 14 14 05.33 +12° 57′ 34.5″ 5.53 2.92 108 F6IV
32 Boo 32 129336 71837 14 41 43.62 +11° 39′ 39.4″ 5.55 0.19 385 G8III
137071 75257 15 22 37.37 +39° 34′ 53.4″ 5.56 −3.99 2650 K4III
HD 118889 118889 66640 13 39 34.68 +10° 44′ 46.7″ 5.57 1.93 175 F0V
24 Boo g 24 127243 70791 14 28 38.09 +49° 50′ 41.9″ 5.58 0.70 308 G3IV has a planet (b)
47 Boo k 47 133962 73841 15 05 25.89 +48° 09′ 03.2″ 5.59 1.08 260 A1V
2 Boo 2 119126 66763 13 41 02.36 +22° 29′ 45.0″ 5.63 0.66 322 G9III
132254 73100 14 56 22.94 +49° 37′ 44.4″ 5.63 3.65 81 F7V
40 Boo 40 132772 73369 14 59 36.97 +39° 15′ 54.8″ 5.64 2.13 164 F1III-IV
136729 75043 15 20 05.14 +51° 57′ 30.6″ 5.65 1.58 213 A4V
46 Boo b 46 134320 74087 15 08 23.78 +26° 18′ 04.3″ 5.67 0.12 420 K2III
39 Boo 39 131041 72524 14 49 41.36 +48° 43′ 14.0″ 5.68 1.44 229 F6V+...
7 Boo 7 121107 67787 13 53 12.95 +17° 55′ 58.3″ 5.71 −0.90 683 G5III
118508 66417 13 36 59.10 +24° 36′ 47.9″ 5.72 −0.23 505 M2III
129846 72012 14 43 44.44 +40° 27′ 33.1″ 5.72 −1.21 793 K4III
132146 73166 14 57 11.68 +16° 23′ 17.3″ 5.72 −0.67 617 G5III:
1 Boo 1 119055 66727 13 40 40.50 +19° 57′ 20.4″ 5.73 0.89 303 A1V
CH Boo CH 128333 71280 14 34 39.66 +49° 22′ 05.6″ 5.74 −1.16 782 M1III irregular variable, ΔV = ~0.04
128902 71568 14 38 12.67 +43° 38′ 31.4″ 5.74 −1.99 1144 K2III
10 Boo 10 121996 68276 13 58 38.93 +21° 41′ 46.8″ 5.76 −0.08 480 A0Vs
38 Boo h 38 130945 72487 14 49 18.68 +46° 06′ 59.0″ 5.76 2.41 153 F7IVw Merga
139798 76568 15 38 16.14 +46° 47′ 52.8″ 5.76 2.99 117 F2V
EK Boo EK 130144 72208 14 46 06.00 +15° 07′ 54.3″ 5.78 −1.44 908 M5III irregular variable, ΔV = ~0.38
130917 72552 14 49 58.39 +28° 36′ 57.0″ 5.80 1.02 295 A4V
134335 74096 15 08 35.56 +25° 06′ 31.1″ 5.82 −0.15 510 K1III
128998 71573 14 38 15.21 +54° 01′ 24.2″ 5.83 0.24 428 A1V
CY Boo CY 125180 69829 14 17 28.44 +15° 15′ 48.1″ 5.84 −1.62 1012 M3III ＝ 101 Vir; semiregular variable, Vmax = 5.74, Vmin = 5.90, P = 23 d
139906 76594 15 38 34.20 +50° 25′ 24.1″ 5.84 0.54 374 G8III
HP Boo HP 130948 72567 14 50 15.72 +23° 54′ 42.4″ 5.86 4.59 58 G2V BY Draconis variable, ΔV = 0.03, P = 7.85 d
π Boo π 29 129175 14 40 43.90 +16° 25′ 04.0″ 5.88 component of the π Boo system
128750 71571 14 38 14.01 +18° 17′ 54.7″ 5.90 0.64 367 K2III:
131951 73087 14 56 13.24 +14° 26′ 46.6″ 5.90 −0.22 547 A0V
26 Boo 26 127739 71115 14 32 32.62 +22° 15′ 35.9″ 5.91 2.35 168 F2IV
129153 71759 14 40 42.36 +13° 32′ 03.7″ 5.93 2.30 173 F0V
4 G. Boo 4 126200 70384 14 24 00.88 +08° 14′ 38.4″ 5.94 0.58 384 A3V Algol variable
3 Boo 3 120064 67239 13 46 43.33 +25° 42′ 08.6″ 5.97 1.36 272 F6IV-V
CN Boo CN 124953 14 16 04.20 +18° 54′ 43.0″ 5.98 A8III δ Sct variable, ΔV = 0.03, P = 0.04 d
1 G. Boo 1 122365 68498 14 01 20.41 +08° 53′ 41.7″ 5.98 1.25 288 A2V
135438 74561 15 14 06.01 +31° 47′ 16.5″ 5.98 −0.29 585 K5
127726 71094 14 32 20.27 +26° 40′ 38.4″ 6.00 1.74 232 A7Vn
DE Boo DE 131511 72848 14 53 24.04 +19° 09′ 08.2″ 6.00 5.69 38 K2V RS CVn variable, Vmax = 5.97, Vmin = 6.04, P = 10.39 d
121980 68279 13 58 39.95 +14° 38′ 57.9″ 6.01 −0.05 531 K5III
128198 71277 14 34 38.52 +36° 37′ 34.2″ 6.02 −0.19 568 K5III
134064 74000 15 07 20.34 +18° 26′ 31.0″ 6.03 1.66 244 A3V
127304 70892 14 29 49.68 +31° 47′ 28.2″ 6.06 0.91 349 A0Vs
137390 75369 15 24 05.13 +45° 16′ 15.7″ 6.07 0.22 482 K2III
120934 67714 13 52 18.39 +12° 09′ 54.6″ 6.10 1.11 325 A1V
119584 66992 13 43 45.13 +22° 42′ 01.8″ 6.12 −0.63 731 K4III
132029 73068 14 55 58.63 +32° 18′ 00.3″ 6.12 1.21 313 A2V
135530 74571 15 14 10.29 +42° 10′ 17.2″ 6.12 −1.32 1003 M2III
129132 71729 14 40 21.88 +21° 58′ 32.8″ 6.13 1.01 344 G0V
124186 69316 14 11 15.14 +32° 17′ 44.9″ 6.14 0.79 383 K4III
136751 75093 15 20 41.65 +44° 26′ 04.7″ 6.14 2.49 175 F4IVs
130025 72139 14 45 20.58 +18° 53′ 05.7″ 6.15 0.24 495 K0
130603 72412 14 48 23.41 +24° 22′ 00.3″ 6.15 1.61 264 F2V
130817 72469 14 49 06.93 +37° 48′ 39.3″ 6.15 3.09 134 F2V
138213 75770 15 28 44.41 +47° 12′ 05.4″ 6.15 0.32 479 Amvar...
119288 66860 13 42 12.98 +08° 23′ 19.0″ 6.16 3.39 117 F3Vp 174 G. Vir in Boötes
121560 68030 13 55 50.17 +14° 03′ 23.3″ 6.16 4.24 79 F6V
134323 74121 15 08 53.54 +13° 14′ 06.2″ 6.16 −0.10 582 G6V:
HD 122563 122563 68594 14 02 31.96 +09° 41′ 10.6″ 6.18 −0.94 867 F8IV extremely metal-poor giant
125349 69818 14 17 21.16 +51° 18′ 26.6″ 6.19 1.15 331 A2IV
5 G. Boo 5 126271 70414 14 24 18.34 +08° 05′ 05.4″ 6.19 0.95 363 K4III
135402 74514 15 13 35.59 +38° 15′ 53.3″ 6.19 0.54 439 K2III:
126141 70310 14 23 06.92 +25° 20′ 16.9″ 6.22 3.46 116 F5V
127065 70762 14 28 16.46 +36° 11′ 49.3″ 6.22 −1.07 937 K0III
11 Boo 11 122405 68478 14 01 10.53 +27° 23′ 11.6″ 6.23 1.14 340 A7III
124755 69569 14 14 23.57 +41° 31′ 08.5″ 6.23 2.98 146 K3III:
2 G. Boo 2 122744 68687 14 03 36.79 +07° 32′ 46.4″ 6.25 0.64 432 G9III
125040 69751 14 16 32.93 +20° 07′ 19.5″ 6.25 3.71 105 F8V
122742 68682 14 03 32.30 +10° 47′ 15.1″ 6.27 5.17 54 G8V
130084 72124 14 45 13.68 +32° 47′ 18.6″ 6.27 −1.11 976 M1III
126597 70517 14 25 29.15 +38° 23′ 35.2″ 6.28 −0.13 625 K2III:
132879 73464 15 00 52.28 +22° 02′ 44.1″ 6.29 −1.19 1022 K0
125406 69862 14 17 49.21 +48° 00′ 07.5″ 6.32 2.07 231 F5
128093 71243 14 34 11.63 +32° 32′ 04.1″ 6.32 3.20 137 F5V
125642 70029 14 19 47.72 +38° 47′ 38.7″ 6.33 0.65 447 A2V
134493 74083 15 08 19.54 +50° 03′ 18.0″ 6.33 0.77 423 K0III
BX Boo BX 133029 73454 15 00 38.73 +47° 16′ 38.7″ 6.35 0.53 477 B9p SiSrCr α CVn variable, Vmax = 6.33, Vmin = 6.41, P = 2.88813 d
134044 73941 15 06 35.19 +36° 27′ 21.5″ 6.35 4.00 96 F8V
122443 68516 14 01 36.84 +17° 40′ 06.9″ 6.36 −4.98 6037 G5
127334 70873 14 29 36.68 +41° 47′ 47.2″ 6.36 4.50 77 G5V
124713 69592 14 14 40.94 +21° 52′ 24.3″ 6.38 2.53 192 A7V
125111 69735 14 16 24.38 +39° 44′ 40.9″ 6.38 2.96 157 F2IV
126307 70385 14 24 01.98 +27° 24′ 47.5″ 6.39 −1.89 1475 K4III
127986 71168 14 33 20.27 +36° 57′ 33.1″ 6.39 2.07 238 F8IVw
128402 71406 14 36 06.88 +23° 15′ 01.1″ 6.39 1.08 377 K0
129430 71857 14 41 54.24 +21° 07′ 25.3″ 6.40 0.58 475 G8III
131473 72846 14 53 23.36 +15° 42′ 18.4″ 6.41 2.96 160 F6III
119784 67104 13 45 13.47 +10° 19′ 31.5″ 6.42 1.14 371 K2
124678 69585 14 14 35.66 +13° 58′ 30.9″ 6.45 0.51 502 K2
125658 70051 14 20 08.67 +30° 25′ 44.9″ 6.45 1.76 283 A5III
118839 66594 13 39 02.31 +18° 15′ 55.3″ 6.46 −0.31 738 K3III
125632 69958 14 18 55.93 +54° 51′ 49.6″ 6.47 1.42 334 A5Vn
135944 74690 15 15 50.68 +50° 56′ 18.8″ 6.47 2.56 197 G5
118660 66522 13 38 07.86 +14° 18′ 07.1″ 6.49 2.21 234 A9Vs
131040 72508 14 49 32.37 +51° 22′ 28.2″ 6.49 2.93 168 F5IV
125076 69704 14 16 02.41 +45° 33′ 58.0″ 6.50 1.00 410 K0
CI Boo CI 126009 70236 14 22 14.03 +29° 22′ 11.9″ 6.50 −0.19 709 MIII irregular variable, Vmax = 6.23, Vmin = 6.57
132145 73156 14 57 03.61 +21° 33′ 19.7″ 6.50 0.83 444 A1V
μ Boo μ 51 137392 75415 15 24 30.97 +37° 20′ 49.5″ 6.51 3.65 122 G1V component of the μ Boo system
κ Boo κ 17 124674 69481 14 13 27.75 +51° 47′ 16.4″ 6.62 2.73 196 F1V component of the κ Boo system
HD 141399 141399 77301 15 46 54.0 +46° 59′ 11″ 7.2 4.41 118 K0V has four planets (b, c, d & e)
HD 128311 128311 71395 14 36 00.56 +09° 44′ 47.5″ 7.48 6.38 54 K0V has two planets (b & c)
HD 136418 136418 74961 15 19 06.18 +41° 43′ 59.5″ 7.88 2.74 347 G5III Nikawiy; has a planet (b)
HD 131496 131496 72845 14 53 23 +18° 14′ 07″ 7.96 2.75 359 K0 Arcalís, has a planet (b)
HD 132406 132406 73146 14 56 54.65 +53° 22′ 55.8″ 8.45 4.19 231 G0V has a planet (b)
HD 132563 B 132563 14 58 21 +44° 02′ 36″ 9.47 4.56 313 has a planet (HD 132563 B b)
WASP-14 14 33 06.3549 +21° 53′ 40.978″ 9.745 3.725 521.6 F5V has a transiting planet WASP-14b
BD+36°2593 15 19 57.93 +36° 13′ 46.8″ 11.2 3.6 1010 F has a transiting planet HAT-P-4b
R Boo R 128609 71490 14 37 11.70 +26° 44′ 10.0″ 11.70 3.16 1664 M4e Mira variable, Vmax = 6.0, Vmin = 13.3, P = 223.11 d
CR Boo CR 13 48 55.22 +07° 57′ 35.7″ 15.00 1150 AM CVn variable
LHS 2924 14 28 43.2272 +33° 10′ 39.2458″ 19.35 19.15 35.84 M9V one of the dimmest and least massive stars known
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 mv), also known as apparent magnitude
 • abs. mag. = absolute magnitude (Mv)
 • 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

See also

References

  1. ^ E.B Knobel – On a catalogue of stars in the Calendarium of Al Achsasi Al Mouakket
  2. "Princeps – Constellations of Words". Retrieved 28 October 2022.
  3. ^ Star Name – R.H.Allen p.105
  4. (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 6 月 14 日
  5. "Andorra". NameExoWorlds. Retrieved 23 December 2019.
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