List of stars in Boötes


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.
NameBFG.VarHDHIPRADecvis.
mag.
abs.
mag.
Dist. Sp. classNotes
Arcturusα1612489769673−0.05−0.3137K2IIIpAlramech, Al Simak Al Ramih, Al Simak Lanceator; 3rd brightest star, variable
ε Booε36129989721052.37−1.61236K0 II-IIIIzar, Mirak, Pulcherrima; binary star
η Booη8121370679272.682.4137G0IVMuphrid, Ramih al Ramih, Lancea Lanceator
γ Booγ27127762710753.040.9685A7IIIvarSeginus, Menkib al Aoua al Aisr, Humerus Sinister Latratoris; δ Sct variable,
δ Booδ49135722746663.460.69117G8IIIPrinceps.
β Booβ42133208735553.49−0.64219G8IIINekkar, Meres
ρ Booρ25127665710533.570.27149K3III
ζ Booζ30129246717953.780.06180A3IVndouble star
θ Booθ23126660704974.043.2248F7VAsellus Primus
υ Booυ5120477674594.05−0.33245K5IIIvar
λ Booλ19125162697324.181.8197A0shXuángē
μ1 Booμ151137391754114.311.46121F0VAlkalurops; double star
ζ Booζ301292474.43
σ Booσ28128167712844.473.5250F3Vwvar
π1 Booπ129129174717624.49−0.45317B9p MnHgAlazal; binary star
τ Booτ4120136672754.503.5351F7Vhas a planet
ψ Booψ43133582737454.520.10250K2III
κ2 Booκ217124675694834.531.14155A8IVAsellus Tertius; binary star; δ Sct variable,
ξ Booξ37131156726594.545.4122G8V + K4VBY Dra variable,
ο Booο35129972721254.600.40225K0III
ι Booι21125161697134.752.3897A9VAsellus Secundus; binary star, triple star; δ Sct variable,
HD 125351A125351698794.800.63223K1IIIspectroscopic binary
W Boo34129712719954.80−2.38888M3IIIsemiregular variable,
ω Booω41133124735684.80−0.41359K4III
12 Bood12123999692264.822.00120F9IVw
44 Booi44133640736954.834.3042G2V + G2VQuadrans, W UMa variable,
20 Boo20125560700274.841.01190K3III
HD 126128126128703274.860.76215A0Vforms a triple star with HD 126129
31 Boo316129312718324.86−1.38576G8IIIvar
6 Booe6120539674804.92−0.34368K4III
45 Booc45134083739964.933.4664F5V
ν2 Booν253138629760414.98−0.62430A5V
9 Boo9121710681035.02−1.47648K3IIIvar
ν1 Booν152138481759735.04−2.10872K5III
[HD 126129 and Henry Draper Catalogue|HD 126128|HD 126129]31261295.04+0.5215A0Vforms a triple star with HD 126128
BY BooBY123657690385.13−0.64465M4.5:IIIirregular variable,
134190739095.240.73260G8III
φ Booφ54139641765345.251.76163G8III-IVCeginus
CF Boo13CF123782690685.26−0.90556M2IIIirregular variable,
χ Booχ48135502745965.281.07226A2V
15 Boo15124679696125.290.82255K1III
50 Boo50136849751785.380.98247B9Vn
33 Boo33129002716185.391.49197A1V
22 Boof22126661706025.400.68286F0m
18 Boo18125451699895.413.3385F5IV
137704755725.46−0.42489K4III
131111725825.471.53200K0III-IV
BP BooBP140728769575.480.54317B9p...α2 CVn variable,
133392736345.520.89275G8III:
14 Boo14124570695365.532.92108F6IV
32 Boo32129336718375.550.19385G8III
137071752575.56−3.992650K4III
HD 118889118889666405.571.93175F0V
24 Boog24127243707915.580.70308G3IVhas a planet
47 Book47133962738415.591.08260A1V
2 Boo2119126667635.630.66322G9III
132254731005.633.6581F7V
40 Boo40132772733695.642.13164F1III-IV
136729750435.651.58213A4V
46 Boob46134320740875.670.12420K2III
39 Boo39131041725245.681.44229F6V+...
7 Boo7121107677875.71−0.90683G5III
118508664175.72−0.23505M2III
129846720125.72−1.21793K4III
132146731665.72−0.67617G5III:
1 Boo1119055667275.730.89303A1V
CH BooCH128333712805.74−1.16782M1IIIirregular variable,
128902715685.74−1.991144K2III
10 Boo10121996682765.76−0.08480A0Vs
38 Booh38130945724875.762.41153F7IVwMerga
139798765685.762.99117F2V
EK BooEK130144722085.78−1.44908M5IIIirregular variable,
130917725525.801.02295A4V
134335740965.82−0.15510K1III
128998715735.830.24428A1V
CY BooCY125180698295.84−1.621012M3III= 101 Vir; semiregular variable,
139906765945.840.54374G8III
HP BooHP130948725675.864.5958G2VBY Draconis variable,
π2 Booπ2291291755.88component of the π Boo system
128750715715.900.64367K2III:
131951730875.90−0.22547A0V
26 Boo26127739711155.912.35168F2IV
129153717595.932.30173F0V
4 G. Boo4126200703845.940.58384A3VAlgol variable
3 Boo3120064672395.971.36272F6IV-V
CN BooCN1249535.98A8IIIδ Sct variable,
1 G. Boo1122365684985.981.25288A2V
135438745615.98−0.29585K5
127726710946.001.74232A7Vn
DE BooDE131511728486.005.6938K2VRS CVn variable,
121980682796.01−0.05531K5III
128198712776.02−0.19568K5III
134064740006.031.66244A3V
127304708926.060.91349A0Vs
137390753696.070.22482K2III
120934677146.101.11325A1V
119584669926.12−0.63731K4III
132029730686.121.21313A2V
135530745716.12−1.321003M2III
129132717296.131.01344G0V
124186693166.140.79383K4III
136751750936.142.49175F4IVs
130025721396.150.24495K0
130603724126.151.61264F2V
130817724696.153.09134F2V
138213757706.150.32479Amvar...
119288668606.163.39117F3Vp174 G. Vir in Boötes
121560680306.164.2479F6V
134323741216.16−0.10582G6V:
HD 122563122563685946.18−0.94867F8IVextremely metal-poor giant
125349698186.191.15331A2IV
5 G. Boo5126271704146.190.95363K4III
135402745146.190.54439K2III:
126141703106.223.46116F5V
127065707626.22−1.07937K0III
11 Boo11122405684786.231.14340A7III
124755695696.232.98146K3III:
2 G. Boo2122744686876.250.64432G9III
125040697516.253.71105F8V
122742686826.275.1754G8V
130084721246.27−1.11976M1III
126597705176.28−0.13625K2III:
132879734646.29−1.191022K0
125406698626.322.07231F5
128093712436.323.20137F5V
125642700296.330.65447A2V
134493740836.330.77423K0III
BX BooBX133029734546.350.53477B9p SiSrCrα2 CVn variable,
134044739416.354.0096F8V
122443685166.36−4.986037G5
127334708736.364.5077G5V
124713695926.382.53192A7V
125111697356.382.96157F2IV
126307703856.39−1.891475K4III
127986711686.392.07238F8IVw
128402714066.391.08377K0
129430718576.400.58475G8III
131473728466.412.96160F6III
119784671046.421.14371K2
RX BooRX126327704016.43500M7.5esemiregular variable,
124678695856.450.51502K2
125658700516.451.76283A5III
118839665946.46−0.31738K3III
125632699586.471.42334A5Vn
135944746906.472.56197G5
118660665226.492.21234A9Vs
131040725086.492.93168F5IV
125076697046.501.00410K0
CI BooCI126009702366.50−0.19709MIIIirregular variable,
132145731566.500.83444A1V
μ2 Booμ251137392754156.513.65122G1Vcomponent of the μ Boo system
κ1 Booκ117124674694816.622.73196F1Vcomponent of the κ Boo system
HD 141399141399773017.24.41118K0Vhas four planets
HD 128311128311713957.486.3854K0Vhas two planets
HD 136418136418749617.882.74347G5IIINikawiy; has a planet
HD 131496131496728457.962.75359K0Arcalís, has a planet
HD 132406132406731468.454.19231G0Vhas a planet
HD 132563 B1325639.474.56313has a planet
WASP-149.7453.725521.6F5Vhas a transiting planet WASP-14b
BD+36°259311.23.61010Fhas a transiting planet HAT-P-4b
R BooR1286097149011.703.161664M4eMira variable,
CR BooCR15.001150AM CVn variable
LHS 292419.3519.1535.84M9Vone of the dimmest and least massive stars known

; Notes