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. 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^h 15^m 40.35^s	+19° 11′ 14.2″	−0.05	−0.31	37	K2IIIp	Alramech, Al Simak Al Ramih, Al Simak Lanceator;[1] 3rd brightest star, variable
ε Boo	ε	36			129988	72105	14^h 44^m 59.25^s	+27° 04′ 27.0″	2.35	−1.69	210	A0	Izar, Mirak, Pulcherrima, Mintek al Aoua, Cingulum Latratoris;[1] binary star
η Boo	η	8			121370	67927	13^h 54^m 41.12^s	+18° 23′ 54.9″	2.68	2.41	37	G0IV	Muphrid, Saak, Ramih al Ramih, Lancea Lanceator[1]
ε Boo	ε	36			129989		14^h 44^m 59.20^s	+27° 04′ 27.0″	2.70				component of the ε Boo system
γ Boo	γ	27			127762	71075	14^h 32^m 04.76^s	+38° 18′ 28.4″	3.04	0.96	85	A7IIIvar	Seginus, Haris, Menkib al Aoua al Aisr, Humerus Sinister Latratoris;[1] δ Sct variable, Vmax = 3.02^m, Vmin = 3.07^m, P = 0.290314 d
δ Boo	δ	49			135722	74666	15^h 15^m 30.10^s	+33° 18′ 54.4″	3.46	0.69	117	G8III	Princeps.[2]
β Boo	β	42			133208	73555	15^h 01^m 56.79^s	+40° 23′ 26.3″	3.49	−0.64	219	G8III	Nekkar, Meres
ρ Boo	ρ	25			127665	71053	14^h 31^m 49.86^s	+30° 22′ 16.1″	3.57	0.27	149	K3III	Hemelein Prima
ζ Boo	ζ	30			129246	71795	14^h 41^m 08.92^s	+13° 43′ 42.0″	3.78	0.06	180	A3IVn	double star
θ Boo	θ	23			126660	70497	14^h 25^m 12.02^s	+51° 51′ 06.2″	4.04	3.22	48	F7V	Asellus Primus[3]
υ Boo	υ	5			120477	67459	13^h 49^m 28.70^s	+15° 47′ 52.1″	4.05	−0.33	245	K5IIIvar
λ Boo	λ	19			125162	69732	14^h 16^m 23.18^s	+46° 05′ 16.5″	4.18	1.81	97	A0sh	Aulad al Thiba, Xuángē (玄戈)[4]
μ^1 Boo	μ^1	51			137391	75411	15^h 24^m 29.54^s	+37° 22′ 37.1″	4.31	1.46	121	F0V	Alkalurops; double star
ζ Boo	ζ	30			129247		14^h 41^m 08.90^s	+13° 43′ 42.0″	4.43
σ Boo	σ	28			128167	71284	14^h 34^m 40.69^s	+29° 44′ 41.3″	4.47	3.52	50	F3Vwvar	Hemelein Secunda
π^1 Boo	π^1	29			129174	71762	14^h 40^m 43.56^s	+16° 25′ 05.9″	4.49	−0.45	317	B9p MnHg	binary star
τ Boo	τ	4			120136	67275	13^h 47^m 16.04^s	+17° 27′ 24.4″	4.50	3.53	51	F7V	has a planet (b)
ψ Boo	ψ	43			133582	73745	15^h 04^m 26.86^s	+26° 56′ 51.6″	4.52	0.10	250	K2III	Nadlat
κ^2 Boo	κ^2	17			124675	69483	14^h 13^m 28.95^s	+51° 47′ 24.0″	4.53	1.14	155	A8IV	Asellus Tertius;[3] binary star; δ Sct variable, Vmax = 4.50^m, Vmin = 4.58^m, P = 0.06479 d
ξ Boo	ξ	37			131156	72659	14^h 51^m 23.28^s	+19° 06′ 02.3″	4.54	5.41	22	G8V + K4V	BY Dra variable, Vmax = 4.52^m, Vmin = 4.67^m, P = 10.137 d
ο Boo	ο	35			129972	72125	14^h 45^m 14.50^s	+16° 57′ 51.9″	4.60	0.40	225	K0III
ι Boo	ι	21			125161	69713	14^h 16^m 10.07^s	+51° 22′ 01.3″	4.75	2.38	97	A9V	Asellus Secundus;[3] binary star, triple star; δ Sct variable, Vmax = 4.73^m, Vmin = 4.78^m, P = 0.027 d
HD 125351	A				125351	69879	14^h 17^m 59.82^s	+35° 30′ 34.1″	4.80	0.63	223	K1III	spectroscopic binary
W Boo		34			129712	71995	14^h 43^m 25.37^s	+26° 31′ 40.4″	4.80	−2.38	888	M3III	semiregular variable, Vmax = 4.49^m, Vmin = 5.40^m, P = 25 d
ω Boo	ω	41			133124	73568	15^h 02^m 06.51^s	+25° 00′ 29.7″	4.80	−0.41	359	K4III
12 Boo	d	12			123999	69226	14^h 10^m 23.95^s	+25° 05′ 30.6″	4.82	2.00	120	F9IVw
44 Boo	i	44			133640	73695	15^h 03^m 47.68^s	+47° 39′ 14.5″	4.83	4.30	42	G2V + G2V	W UMa variable, Vmax = 4.70^m, Vmin = 4.86^m, P = 0.267819 d
20 Boo		20			125560	70027	14^h 19^m 45.32^s	+16° 18′ 24.5″	4.84	1.01	190	K3III
HD 126128					126128	70327	14^h 23^m 22.74^s	+08° 26′ 47.9″	4.86	0.76	215	A0V
31 Boo		31	6		129312	71832	14^h 41^m 38.76^s	+08° 09′ 42.3″	4.86	−1.38	576	G8IIIvar
6 Boo	e	6			120539	67480	13^h 49^m 42.82^s	+21° 15′ 50.6″	4.92	−0.34	368	K4III
45 Boo	c	45			134083	73996	15^h 07^m 17.95^s	+24° 52′ 10.5″	4.93	3.46	64	F5V
ν^2 Boo	ν^2	53			138629	76041	15^h 31^m 46.99^s	+40° 53′ 57.7″	4.98	−0.62	430	A5V
9 Boo		9			121710	68103	13^h 56^m 34.16^s	+27° 29′ 31.9″	5.02	−1.47	648	K3IIIvar
ν^1 Boo	ν^1	52			138481	75973	15^h 30^m 55.75^s	+40° 49′ 59.0″	5.04	−2.10	872	K5III
BY Boo				BY	123657	69038	14^h 07^m 55.75^s	+43° 51′ 16.3″	5.13	−0.64	465	M4.5:III	irregular variable, Vmax = 4.98^m, Vmin = 5.33^m
					134190	73909	15^h 06^m 16.67^s	+54° 33′ 22.6″	5.24	0.73	260	G8III
φ Boo	φ	54			139641	76534	15^h 37^m 49.55^s	+40° 21′ 11.8″	5.25	1.76	163	G8III-IV
CF Boo		13			123782	69068	14^h 08^m 17.36^s	+49° 27′ 28.9″	5.26	−0.90	556	M2III	irregular variable, Vmax = 5.20^m, Vmin = 5.30^m
χ Boo	χ	48			135502	74596	15^h 14^m 29.21^s	+29° 09′ 51.2″	5.28	1.07	226	A2V
15 Boo		15			124679	69612	14^h 14^m 50.86^s	+10° 06′ 03.6″	5.29	0.82	255	K1III
50 Boo		50			136849	75178	15^h 21^m 48.61^s	+32° 56′ 01.2″	5.38	0.98	247	B9Vn
33 Boo		33			129002	71618	14^h 38^m 50.28^s	+44° 24′ 16.4″	5.39	1.49	197	A1V
22 Boo	f	22			126661	70602	14^h 26^m 27.41^s	+19° 13′ 36.6″	5.40	0.68	286	F0m
18 Boo		18			125451	69989	14^h 19^m 16.22^s	+13° 00′ 15.8″	5.41	3.33	85	F5IV
					137704	75572	15^h 26^m 17.46^s	+34° 20′ 09.1″	5.46	−0.42	489	K4III
					131111	72582	14^h 50^m 29.80^s	+37° 16′ 18.5″	5.47	1.53	200	K0III-IV
BP Boo				BP	140728	76957	15^h 42^m 50.82^s	+52° 21′ 39.0″	5.48	0.54	317	B9p...	α^2 CVn variable, ΔV = 0.02^m, P = 1.30488 d
					133392	73634	15^h 03^m 06.08^s	+35° 12′ 20.8″	5.52	0.89	275	G8III:
14 Boo		14			124570	69536	14^h 14^m 05.33^s	+12° 57′ 34.5″	5.53	2.92	108	F6IV
32 Boo		32			129336	71837	14^h 41^m 43.62^s	+11° 39′ 39.4″	5.55	0.19	385	G8III
					137071	75257	15^h 22^m 37.37^s	+39° 34′ 53.4″	5.56	−3.99	2650	K4III
HD 118889					118889	66640	13^h 39^m 34.68^s	+10° 44′ 46.7″	5.57	1.93	175	F0V
24 Boo	g	24			127243	70791	14^h 28^m 38.09^s	+49° 50′ 41.9″	5.58	0.70	308	G3IV
47 Boo	k	47			133962	73841	15^h 05^m 25.89^s	+48° 09′ 03.2″	5.59	1.08	260	A1V
2 Boo		2			119126	66763	13^h 41^m 02.36^s	+22° 29′ 45.0″	5.63	0.66	322	G9III
					132254	73100	14^h 56^m 22.94^s	+49° 37′ 44.4″	5.63	3.65	81	F7V
40 Boo		40			132772	73369	14^h 59^m 36.97^s	+39° 15′ 54.8″	5.64	2.13	164	F1III-IV
					136729	75043	15^h 20^m 05.14^s	+51° 57′ 30.6″	5.65	1.58	213	A4V
46 Boo	b	46			134320	74087	15^h 08^m 23.78^s	+26° 18′ 04.3″	5.67	0.12	420	K2III
39 Boo		39			131041	72524	14^h 49^m 41.36^s	+48° 43′ 14.0″	5.68	1.44	229	F6V+...
7 Boo		7			121107	67787	13^h 53^m 12.95^s	+17° 55′ 58.3″	5.71	−0.90	683	G5III
					118508	66417	13^h 36^m 59.10^s	+24° 36′ 47.9″	5.72	−0.23	505	M2III
					129846	72012	14^h 43^m 44.44^s	+40° 27′ 33.1″	5.72	−1.21	793	K4III
					132146	73166	14^h 57^m 11.68^s	+16° 23′ 17.3″	5.72	−0.67	617	G5III:
1 Boo		1			119055	66727	13^h 40^m 40.50^s	+19° 57′ 20.4″	5.73	0.89	303	A1V
CH Boo				CH	128333	71280	14^h 34^m 39.66^s	+49° 22′ 05.6″	5.74	−1.16	782	M1III	irregular variable, ΔV = ~0.04^m
					128902	71568	14^h 38^m 12.67^s	+43° 38′ 31.4″	5.74	−1.99	1144	K2III
10 Boo		10			121996	68276	13^h 58^m 38.93^s	+21° 41′ 46.8″	5.76	−0.08	480	A0Vs
38 Boo	h	38			130945	72487	14^h 49^m 18.68^s	+46° 06′ 59.0″	5.76	2.41	153	F7IVw	Merga
					139798	76568	15^h 38^m 16.14^s	+46° 47′ 52.8″	5.76	2.99	117	F2V
EK Boo				EK	130144	72208	14^h 46^m 06.00^s	+15° 07′ 54.3″	5.78	−1.44	908	M5III	irregular variable, ΔV = ~0.38^m
					130917	72552	14^h 49^m 58.39^s	+28° 36′ 57.0″	5.80	1.02	295	A4V
					134335	74096	15^h 08^m 35.56^s	+25° 06′ 31.1″	5.82	−0.15	510	K1III
					128998	71573	14^h 38^m 15.21^s	+54° 01′ 24.2″	5.83	0.24	428	A1V
CY Boo				CY	125180	69829	14^h 17^m 28.44^s	+15° 15′ 48.1″	5.84	−1.62	1012	M3III	＝ 101 Vir; semiregular variable, Vmax = 5.74^m, Vmin = 5.90^m, P = 23 d
					139906	76594	15^h 38^m 34.20^s	+50° 25′ 24.1″	5.84	0.54	374	G8III
HP Boo				HP	130948	72567	14^h 50^m 15.72^s	+23° 54′ 42.4″	5.86	4.59	58	G2V	BY Draconis variable, ΔV = 0.03^m, P = 7.85 d
π^2 Boo	π^2	29			129175		14^h 40^m 43.90^s	+16° 25′ 04.0″	5.88				component of the π Boo system
					128750	71571	14^h 38^m 14.01^s	+18° 17′ 54.7″	5.90	0.64	367	K2III:
					131951	73087	14^h 56^m 13.24^s	+14° 26′ 46.6″	5.90	−0.22	547	A0V
26 Boo		26			127739	71115	14^h 32^m 32.62^s	+22° 15′ 35.9″	5.91	2.35	168	F2IV
					129153	71759	14^h 40^m 42.36^s	+13° 32′ 03.7″	5.93	2.30	173	F0V
4 G. Boo			4		126200	70384	14^h 24^m 00.88^s	+08° 14′ 38.4″	5.94	0.58	384	A3V	Algol variable
3 Boo		3			120064	67239	13^h 46^m 43.33^s	+25° 42′ 08.6″	5.97	1.36	272	F6IV-V
CN Boo				CN	124953		14^h 16^m 04.20^s	+18° 54′ 43.0″	5.98			A8III	δ Sct variable, ΔV = 0.03^m, P = 0.04 d
1 G. Boo			1		122365	68498	14^h 01^m 20.41^s	+08° 53′ 41.7″	5.98	1.25	288	A2V
					135438	74561	15^h 14^m 06.01^s	+31° 47′ 16.5″	5.98	−0.29	585	K5
					127726	71094	14^h 32^m 20.27^s	+26° 40′ 38.4″	6.00	1.74	232	A7Vn
DE Boo				DE	131511	72848	14^h 53^m 24.04^s	+19° 09′ 08.2″	6.00	5.69	38	K2V	RS CVn variable, Vmax = 5.97^m, Vmin = 6.04^m, P = 10.39 d
					121980	68279	13^h 58^m 39.95^s	+14° 38′ 57.9″	6.01	−0.05	531	K5III
					128198	71277	14^h 34^m 38.52^s	+36° 37′ 34.2″	6.02	−0.19	568	K5III
					134064	74000	15^h 07^m 20.34^s	+18° 26′ 31.0″	6.03	1.66	244	A3V
					127304	70892	14^h 29^m 49.68^s	+31° 47′ 28.2″	6.06	0.91	349	A0Vs
					137390	75369	15^h 24^m 05.13^s	+45° 16′ 15.7″	6.07	0.22	482	K2III
					120934	67714	13^h 52^m 18.39^s	+12° 09′ 54.6″	6.10	1.11	325	A1V
					119584	66992	13^h 43^m 45.13^s	+22° 42′ 01.8″	6.12	−0.63	731	K4III
					132029	73068	14^h 55^m 58.63^s	+32° 18′ 00.3″	6.12	1.21	313	A2V
					135530	74571	15^h 14^m 10.29^s	+42° 10′ 17.2″	6.12	−1.32	1003	M2III
					129132	71729	14^h 40^m 21.88^s	+21° 58′ 32.8″	6.13	1.01	344	G0V
					124186	69316	14^h 11^m 15.14^s	+32° 17′ 44.9″	6.14	0.79	383	K4III
					136751	75093	15^h 20^m 41.65^s	+44° 26′ 04.7″	6.14	2.49	175	F4IVs
					130025	72139	14^h 45^m 20.58^s	+18° 53′ 05.7″	6.15	0.24	495	K0
					130603	72412	14^h 48^m 23.41^s	+24° 22′ 00.3″	6.15	1.61	264	F2V
					130817	72469	14^h 49^m 06.93^s	+37° 48′ 39.3″	6.15	3.09	134	F2V
					138213	75770	15^h 28^m 44.41^s	+47° 12′ 05.4″	6.15	0.32	479	Amvar...
					119288	66860	13^h 42^m 12.98^s	+08° 23′ 19.0″	6.16	3.39	117	F3Vp	174 G. Vir in Boötes
					121560	68030	13^h 55^m 50.17^s	+14° 03′ 23.3″	6.16	4.24	79	F6V
					134323	74121	15^h 08^m 53.54^s	+13° 14′ 06.2″	6.16	−0.10	582	G6V:
HD 122563					122563	68594	14^h 02^m 31.96^s	+09° 41′ 10.6″	6.18	−0.94	867	F8IV	extremely metal-poor giant
					125349	69818	14^h 17^m 21.16^s	+51° 18′ 26.6″	6.19	1.15	331	A2IV
5 G. Boo			5		126271	70414	14^h 24^m 18.34^s	+08° 05′ 05.4″	6.19	0.95	363	K4III
					135402	74514	15^h 13^m 35.59^s	+38° 15′ 53.3″	6.19	0.54	439	K2III:
					126141	70310	14^h 23^m 06.92^s	+25° 20′ 16.9″	6.22	3.46	116	F5V
					127065	70762	14^h 28^m 16.46^s	+36° 11′ 49.3″	6.22	−1.07	937	K0III
11 Boo		11			122405	68478	14^h 01^m 10.53^s	+27° 23′ 11.6″	6.23	1.14	340	A7III
					124755	69569	14^h 14^m 23.57^s	+41° 31′ 08.5″	6.23	2.98	146	K3III:
2 G. Boo			2		122744	68687	14^h 03^m 36.79^s	+07° 32′ 46.4″	6.25	0.64	432	G9III
					125040	69751	14^h 16^m 32.93^s	+20° 07′ 19.5″	6.25	3.71	105	F8V
					122742	68682	14^h 03^m 32.30^s	+10° 47′ 15.1″	6.27	5.17	54	G8V
					130084	72124	14^h 45^m 13.68^s	+32° 47′ 18.6″	6.27	−1.11	976	M1III
					126597	70517	14^h 25^m 29.15^s	+38° 23′ 35.2″	6.28	−0.13	625	K2III:
					132879	73464	15^h 00^m 52.28^s	+22° 02′ 44.1″	6.29	−1.19	1022	K0
					125406	69862	14^h 17^m 49.21^s	+48° 00′ 07.5″	6.32	2.07	231	F5
					128093	71243	14^h 34^m 11.63^s	+32° 32′ 04.1″	6.32	3.20	137	F5V
					125642	70029	14^h 19^m 47.72^s	+38° 47′ 38.7″	6.33	0.65	447	A2V
					134493	74083	15^h 08^m 19.54^s	+50° 03′ 18.0″	6.33	0.77	423	K0III
BX Boo				BX	133029	73454	15^h 00^m 38.73^s	+47° 16′ 38.7″	6.35	0.53	477	B9p SiSrCr	α^2 CVn variable, Vmax = 6.33^m, Vmin = 6.41^m, P = 2.88813 d
					134044	73941	15^h 06^m 35.19^s	+36° 27′ 21.5″	6.35	4.00	96	F8V
					122443	68516	14^h 01^m 36.84^s	+17° 40′ 06.9″	6.36	−4.98	6037	G5
					127334	70873	14^h 29^m 36.68^s	+41° 47′ 47.2″	6.36	4.50	77	G5V
					124713	69592	14^h 14^m 40.94^s	+21° 52′ 24.3″	6.38	2.53	192	A7V
					125111	69735	14^h 16^m 24.38^s	+39° 44′ 40.9″	6.38	2.96	157	F2IV
					126307	70385	14^h 24^m 01.98^s	+27° 24′ 47.5″	6.39	−1.89	1475	K4III
					127986	71168	14^h 33^m 20.27^s	+36° 57′ 33.1″	6.39	2.07	238	F8IVw
					128402	71406	14^h 36^m 06.88^s	+23° 15′ 01.1″	6.39	1.08	377	K0
					129430	71857	14^h 41^m 54.24^s	+21° 07′ 25.3″	6.40	0.58	475	G8III
					131473	72846	14^h 53^m 23.36^s	+15° 42′ 18.4″	6.41	2.96	160	F6III
					119784	67104	13^h 45^m 13.47^s	+10° 19′ 31.5″	6.42	1.14	371	K2
					124678	69585	14^h 14^m 35.66^s	+13° 58′ 30.9″	6.45	0.51	502	K2
					125658	70051	14^h 20^m 08.67^s	+30° 25′ 44.9″	6.45	1.76	283	A5III
					118839	66594	13^h 39^m 02.31^s	+18° 15′ 55.3″	6.46	−0.31	738	K3III
					125632	69958	14^h 18^m 55.93^s	+54° 51′ 49.6″	6.47	1.42	334	A5Vn
					135944	74690	15^h 15^m 50.68^s	+50° 56′ 18.8″	6.47	2.56	197	G5
					118660	66522	13^h 38^m 07.86^s	+14° 18′ 07.1″	6.49	2.21	234	A9Vs
					131040	72508	14^h 49^m 32.37^s	+51° 22′ 28.2″	6.49	2.93	168	F5IV
					125076	69704	14^h 16^m 02.41^s	+45° 33′ 58.0″	6.50	1.00	410	K0
CI Boo				CI	126009	70236	14^h 22^m 14.03^s	+29° 22′ 11.9″	6.50	−0.19	709	MIII	irregular variable, Vmax = 6.23^m, Vmin = 6.57^m
					132145	73156	14^h 57^m 03.61^s	+21° 33′ 19.7″	6.50	0.83	444	A1V
μ^2 Boo	μ^2	51			137392	75415	15^h 24^m 30.97^s	+37° 20′ 49.5″	6.51	3.65	122	G1V	component of the μ Boo system
κ^1 Boo	κ^1	17			124674	69481	14^h 13^m 27.75^s	+51° 47′ 16.4″	6.62	2.73	196	F1V	component of the κ Boo system
HD 141399					141399	77301	15^h 46^m 54.0^s	+46° 59′ 11″	7.2		118	K0V	has four planets (b, c, d & e)
HD 128311					128311	71395	14^h 36^m 00.56^s	+09° 44′ 47.5″	7.48	6.38	54	K0V	has two planets (b & c)
HD 136418					136418	74961	15^h 19^m 06.18^s	+41° 43′ 59.5″	7.88	2.74	347	G5III	has a planet (b)
HD 131496					131496	72845	14^h 53^m 23^s	+18° 14′ 07″	7.96		359	K0	has a planet (b)
HD 132406					132406	73146	14^h 56^m 54.65^s	+53° 22′ 55.8″	8.45	4.19	231	G0V	has a planet (b)
HD 132563 B					132563		14^h 58^m 21^s	+44° 02′ 36″	9.47		313		has a planet (HD 132563 B b)
WASP-14							14^h 33^m 06.3549^s	+21° 53′ 40.978″	9.745	3.725	521.6	F5V	has a transiting planet WASP-14b
BD+36°2593							15^h 19^m 57.93^s	+36° 13′ 46.8″	11.2	3.6	1010	F	has a transiting planet HAT-P-4b
R Boo				R	128609	71490	14^h 37^m 11.70^s	+26° 44′ 10.0″	11.70	3.16	1664	M4e	Mira variable, Vmax = 6.0^m, Vmin = 13.3^m, P = 223.11 d
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 [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.].

See also

• List of stars by constellation

References

• ESA (1997). "The Hipparcos and Tycho Catalogues". Retrieved 26 December 2006.
• Kostjuk, N. D. (2002). "HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index". Retrieved 26 December 2006.
• Roman, N. G. (1987). "Identification of a Constellation from a Position". Retrieved 26 December 2006.
• Gould, B. A. "Uranometria Argentina". Reprinted and updated by Pilcher, F. Retrieved 19 July 2010.
• Samus, N. N.; Durlevich, O. V.; et al. (2004). "Combined General Catalogue of Variable Stars (GCVS4.2)". Retrieved 3 April 2012.
• Samus, N. N.; Durlevich, O. V.; et al. (2012). "General Catalog of Variable Stars (GCVS database, version 2012Feb)". Retrieved 3 April 2012.

1. E.B Knobel – On a catalogue of stars in the Calendarium of Al Achsasi Al Mouakket
2. Constellations of Word – Boötes (Princeps)
3. Star Name – R.H.Allen p.105
4. (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 6 月 14 日