Datasets:

juliensimon
/

bright-star-catalog

hr_number int64 1 9.11k	name stringlengths 4 10 ⌀	dm stringlengths 1 11	hd_number int64 3 225k ⌀	sao float64 106 259k ⌀	fk5 float64 1 4k ⌀	irflag stringclasses 2 values	r_irflag stringclasses 3 values	multiple stringclasses 7 values	ads stringlengths 1 5	variable_name stringlengths 2 9 ⌀	ra_deg float64 0.08 360 ⌀	dec_deg float64 -88.96 89.3 ⌀	glon float64 0.01 360 ⌀	glat float64 -88.81 89.6 ⌀	v_mag float64 -1.46 7.96 ⌀	n_vmag stringclasses 3 values	b_v_color float64 -0.28 5.74 ⌀	u_b_color float64 -1.11 7.4 ⌀	r_i_color float64 -0.53 3.71 ⌀	n_r_i stringclasses 5 values	spectral_type stringlengths 2 18 ⌀	n_sp_type stringclasses 4 values	pm_ra_arcsec_yr float64 -3.65 4.14 ⌀	pm_dec_arcsec_yr float64 -5.81 3.21 ⌀	n_parallax stringclasses 2 values	parallax float64 -0.03 0.75 ⌀	radial_velocity_kms float64 -140 289 ⌀	n_rad_vel stringclasses 14 values	l_rot_vel stringclasses 3 values	rotational_velocity_kms float64 0 455 ⌀	u_rot_vel stringclasses 3 values	dmag float64 0 13.8 ⌀	sep float64 0 1.48k ⌀	mult_id stringclasses 15 values	mult_cnt float64 3 17 ⌀	note_flag stringclasses 2 values	spectral_class stringclasses 7 values	is_variable bool 2 classes	is_multiple bool 1 class
1	null	BD+44 4550	3	36,042	null				46	null	1.29125	45.229167	114.44	-16.88	6.7		0.07	0.08	null		A1Vn		-0.012	-0.018		null	-18			195		4.2	21.6	AC	3		A	false	false
2	null	BD-01 4525	6	128,569	null					null	1.265833	-0.503056	98.33	-61.14	6.29		1.1	1.02	null		gG9		0.045	-0.06		null	14	V		null		null	null		null		null	false	false
3	33 Psc	BD-06 6357	28	128,572	1,002	I				Var?	1.33375	-5.7075	93.75	-65.93	4.61		1.04	0.89	0.54		K0IIIbCN-0.5		-0.009	0.089		0.014	-6	SB1O	<	17		2.5	0		3	*	K	true	false
4	86 Peg	BD+12 5063	87	91,701	2,004					null	1.425	13.396111	106.19	-47.98	5.51		0.9	null	null		G5III		0.045	-0.012		null	-2	V?		null		null	null		null		G	false	false
5	null	BD+57 2865	123	21,085	null				61	V640 Cas	1.566667	58.436667	117.03	-3.92	5.96		0.67	0.2	null		G5V		0.263	0.03		0.047	-12	V		null		0.8	1.4		null	*	G	true	false
6	null	CD-4914337	142	214,963	null			W		null	1.579167	-49.075	321.61	-66.38	5.7		0.52	0.05	null		G1IV		0.565	-0.038		0.05	3	SB		null		5.7	5.4		null	*	G	false	false
7	10 Cas	BD+63 2107	144	10,978	2,005					null	1.610417	64.196111	118.06	1.75	5.59		-0.03	-0.19	null		B9III	e	0.008	0		null	0	V		153		null	null		null	*	B	false	false
8	null	BD+28 4704	166	73,743	null				69	33	1.653333	29.021389	111.26	-32.83	6.13		0.75	0.33	null		K0V		0.38	-0.182		0.067	-8	V		null		2.6	158.6	AB	4	*	K	true	false
9	null	CD-23 4	203	166,053	1,003					null	1.70875	-23.1075	52.21	-79.14	6.18		0.38	0.05	null		A7V		0.1	-0.045		null	3	V		null		null	null		null		A	false	false
10	null	BD-18 6428	256	147,090	null					null	1.825833	-17.386389	74.36	-75.9	6.19		0.14	0.1	null		A6Vn		-0.018	0.036		null	-9	V?		195		null	null		null	*	A	false	false
11	null	BD-03 2	315	128,595	null					Var?	1.93375	-2.548889	98.02	-63.29	6.43		-0.14	-0.47	null		B8IIIpSi		0.027	-0.002		null	13			null		null	null		null	*	B	true	false
12	null	CD-23 13	319	166,066	null				89	46	1.945	-22.508889	55.56	-79.07	5.94		0.14	0.06	null		A2Vp:		0.052	-0.044		null	-13	V		null		5.1	1.9		null	*	A	true	false
13	null	CD-34 17	344	192,367	null					null	2.014583	-33.529444	355.91	-78.67	5.68		1.12	null	null		K1III		-0.037	0		null	7			null		null	null		null		K	false	false
14	null	BD-03 3	352	128,602	2,006	I				AP Psc	2.050417	-2.447778	98.34	-63.24	6.07		1.38	1.14	null		K2III+F		0.009	-0.003		null	1	SB1O		22		2	0		null	*	K	true	false
15	21Alp And	BD+28 4	358	73,765	1	I			94	Alp And	2.097083	29.090556	111.73	-32.84	2.06		-0.11	-0.46	-0.1		B8IVpMnHg	v	0.136	-0.163		0.032	-12	SBO		56		8.5	81.5		null	*	B	true	false
16	null	BD-09 5	360	128,604	null					null	2.0725	-8.823889	91.79	-69.04	5.99		1.04	0.83	null		gG8		-0.052	-0.033		null	20			null		null	null		null		null	false	false
17	null	BD+35 8	400	53,677	null					null	2.170833	36.626667	113.45	-25.45	6.19		0.48	-0.09	null		F8IV		-0.1	-0.145		0.044	-14		=<	6		null	null		null		F	false	false
18	null	BD-18 3	402	147,103	null	I				51	2.139167	-17.5775	74.69	-76.25	6.06		1.67	1.97	null		M0III		0	-0.025		null	-17	V?		null		null	null		null	*	M	true	false
19	null	BD+24 3	417	73,769	null					null	2.2175	25.462778	110.97	-36.42	6.23		0.97	0.73	null		K0III		0.114	0.031		null	15			null		null	null		null		K	false	false
20	null	BD+78 1	431	4,048	null				102	null	2.334167	79.714722	120.98	17	6.01		0.19	0.1	null		A7IV		0.102	-0.027		0.002	1			90		0.2	0.6		null	*	A	false	false
21	11Bet Cas	BD+58 3	432	21,133	2	I			107	Bet Cas	2.294583	59.149722	117.52	-3.27	2.27		0.34	0.11	0.2		F2III-IV		0.525	-0.181		0.072	12	SB		70		11.3	31.3		null	*	F	true	false
22	87 Peg	BD+17 7	448	91,734	null					null	2.26	18.211944	108.99	-43.51	5.53		1.04	null	null		G9III		0.137	-0.024		null	-23	V?		null		null	null		null		G	false	false
23	null	CP-54 19	469	231,943	null			W		null	2.26	-54.001944	316.25	-62.02	6.33		0.74	0.39	null		G4IV		0.051	0.016	D	0.009	1	SB		null		1.3	0.2		null	*	G	false	false
24	Kap1Scl	CD-28 16	493	166,083	null				111	null	2.3375	-27.987778	25.24	-80.63	5.42		0.42	0.08	null		F2V		0.072	-0.004		0.023	9			131		0.2	1.4	AB	3	*	F	false	false
25	Eps Phe	CD-46 18	496	214,983	3					null	2.352917	-45.7475	324.34	-69.6	3.88		1.03	0.84	0.52		K0III		0.124	-0.181		0.066	-9			null		null	null		null		K	false	false
26	34 Psc	BD+10 8	560	91,750	null				122	null	2.509583	11.145556	106.87	-50.43	5.51		-0.07	-0.24	null		B9Vn	e	0.041	-0.003	D	0.017	14	V		275		4.4	7.7		null	*	B	false	false
27	22 And	BD+45 17	571	36,123	4					null	2.580417	46.072222	115.52	-16.21	5.03		0.4	0.25	0.29		F2II		0.008	0		-0.002	-5			47		null	null		null	*	F	false	false
28	null	BD+56 11	584	21,162	null					null	2.62375	57.165556	117.38	-5.26	6.74		-0.08	-0.41	null		B7IV		0.023	0.006		null	2			null		null	null		null		B	false	false
29	null	BD-06 11	587	128,621	null			D		null	2.578333	-5.248611	96.99	-66.03	5.84		0.98	0.74	null		K1III		0.036	-0.033		null	24			null		null	null		null	*	K	false	false
30	Gam3Oct	CP-82 4	636	258,215	3,971					null	2.50875	-82.223889	304.63	-34.77	5.28		1.05	0.92	null		G8III		-0.029	-0.02		null	15			null		null	null		null		G	false	false
31	null	BD-13 13	645	147,127	2,008					null	2.678333	-12.58	87.69	-72.6	5.85		1.01	0.8	null		K0IV		0.15	-0.038		null	6	V?		null		null	null		null		K	false	false
32	null	CP-73 4	661	255,642	null			W		null	2.660833	-73.224444	306.98	-43.58	6.64		0.37	0.06	null		F2V+F6V		0.123	0.016		null	-14			null		1.1	0.5	AB	3	*	F	false	false
33	6 Cet	BD-16 17	693	147,133	null					null	2.81625	-15.468056	82.24	-75.06	4.89		0.49	-0.03	null		F7V		-0.077	-0.268		0.067	14	V?		0		null	null		null		F	false	false
34	Kap2Scl	CD-28 26	720	166,103	5	I		W		null	2.893333	-27.799722	26.3	-81.13	5.41		1.34	1.46	null		K5III		0.01	0.016		null	-6			null		13.8	46		null		K	false	false
35	The Scl	CD-35 42	739	192,388	6					null	2.933333	-35.133056	347.16	-78.34	5.25		0.44	null	null		F4V		0.173	0.119		0.034	-2			0		null	null		null		F	false	false
36	null	BD+47 21	743	36,148	null	I				null	2.99625	48.1525	116.16	-14.2	6.16		1.45	null	null		gK4		0.058	0.017		null	16			null		null	null		null		null	false	false
37	null	BD-18 14	787	147,144	null	I				null	3.041667	-17.938333	76.32	-77.1	5.25		1.48	1.63	null		K5III		0.056	-0.031		-0.015	-8	V	<	19	:	null	null		null		K	false	false
38	null	BD+36 12	829	53,725	null					null	3.21	37.693333	114.55	-24.55	6.73		-0.13	-0.7	null		B2V		0.028	-0.012		null	-10			null		null	null		null	*	B	false	false
39	88Gam Peg	BD+14 14	886	91,781	7	I	'	W		Gam Peg	3.309167	15.183611	109.43	-46.68	2.83		-0.23	-0.87	-0.19		B2IV		0.003	-0.012		-0.002	4	SBO		3		8.9	163.4	AB	3	*	B	true	false
40	null	BD+26 13	895	73,823	null				161	null	3.35	26.987222	112.56	-35.12	6.3		0.65	0.33	null		G0III		-0.008	-0.047	D	0.006	-13			null		1.1	0.1	AB	3	*	G	false	false
41	23 And	BD+40 29	905	36,173	2,010					null	3.378333	41.035278	115.27	-21.27	5.72		0.31	-0.02	null		F0IV		-0.123	-0.148		0.024	-29			25		null	null		null		F	false	false
42	null	CD-26 56	942	166,130	null	I				96	3.425417	-26.021944	38.28	-81.49	5.94		1.55	null	null		K5III		0.026	-0.069		null	-30	V		null		null	null		null		K	true	false
43	null	CD-26 57	943	166,131	null	I				null	3.434167	-26.284722	36.52	-81.54	6.31		1.48	1.65	null		K5III		-0.02	0.012		null	18	V		null		null	null		null		K	false	false
44	null	BD+32 21	952	53,744	2,012					null	3.509583	33.206111	113.99	-29.02	6.25		-0.01	-0.05	null		A1V		-0.006	-0.018		null	1			56		null	null		null		A	false	false
45	89Chi Peg	BD+19 27	1,013	91,792	1,004	I				99	3.650833	20.206667	111.3	-41.83	4.8		1.57	1.93	1.13		M2+III	e	0.093	0		0.015	-46	V		null		null	null		null	*	M	true	false
46	null	BD-08 26	1,014	128,655	null	I			180	AD Cet	3.615	-7.780556	96.87	-68.76	5.12		1.62	1.81	1.03	E	M3+III		0.059	0.004		0.003	-2	V?		null		6	3		null	*	M	true	false
47	null	CP-85 2	1,032	258,217	3,972					null	3.330833	-84.994167	303.91	-32.06	5.77		1.72	2.1	null		M0-1III		0.004	0.008		null	4			null		null	null		null		M	false	false
48	7 Cet	BD-19 21	1,038	147,169	null	I				AE Cet	3.66	-18.932778	75.11	-78.23	4.44		1.66	1.99	1.14		M3III	e	-0.024	-0.067		0.029	-23			null		null	null		null	*	M	true	false
49	null	BD+21 13	1,048	73,838	null					null	3.73375	22.284167	111.92	-39.81	6.24		-0.01	0.12	null		A1pSi		0.065	-0.011		null	-15			null		null	null		null	*	A	false	false
50	35 Psc	BD+08 19	1,061	109,087	null				191	UU Psc	3.745	8.820833	107.86	-52.98	5.79		0.31	0.04	null		F0IV		0.097	-0.028	D	0.017	1	SB2O		86		0	0	A	3	*	F	true	false
51	null	BD-10 30	1,064	128,660	null					null	3.727083	-9.569722	95.06	-70.44	5.75		-0.08	null	null		B9V		0.028	-0.011		null	17	V?		null		null	null		null		B	false	false
52	null	BD+30 26	1,075	53,755	null	I				null	3.779167	31.535833	113.93	-30.7	6.45	R	null	null	null		K5		0.035	-0.005		null	2			null		null	null		null		K	false	false
53	null	BD+26 23	1,083	73,842	null			W		null	3.794167	27.283056	113.1	-34.9	6.35		-0.02	0.02	null		A1Vn		0.021	-0.031		null	-4	SB		230		6.8	29.2		null	*	A	false	false
54	null	CD-35 65	1,089	192,418	null					null	3.7425	-34.904444	345.8	-78.99	6.17		1.34	null	null		K3III		0.073	-0.023		null	-52			null		null	null		null		K	false	false
55	null	BD+76 5	1,141	4,071	null				207	null	4.058333	76.950833	120.89	14.22	6.35		-0.07	-0.26	null		B8Vnn		0.018	-0.002	D	0.013	-7	V		null		0.3	0.8		null	*	B	false	false
56	null	BD+42 41	1,185	36,221	null				215	null	4.09	43.594722	116.23	-18.82	6.15		0.05	0.03	null		A2VpSi		0.043	-0.03		null	2			100		3.9	9.2		null	*	A	false	false
57	null	CD-32 72	1,187	192,430	2,014	I		W		null	4.037083	-31.446389	1.53	-81.18	5.67		1.35	1.5	null		K5III		0.122	-0.03		null	26			null		9.9	64		null	*	K	false	false
58	null	CP-76 19	1,221	255,650	null					null	3.98	-75.911389	305.79	-41.02	6.49		1	0.72	null		G8-K0III		-0.013	0.006		null	16			null		null	null		null		G	false	false
59	36 Psc	BD+07 27	1,227	109,100	2,015					null	4.142083	8.24	108.28	-53.64	6.11		0.92	0.66	null		G8II-III		-0.02	-0.019		null	1			null		null	null		null		G	false	false
60	null	BD+60 21	1,239	11,084	null				222	null	4.237917	61.533333	118.83	-1.06	5.74		0.88	0.59	null		G8III		-0.001	-0.001		null	-4			null		6.4	19.4		null	*	G	false	false
61	null	BD-21 24	1,256	166,167	null					113	4.177083	-20.210556	72.13	-79.47	6.47		-0.09	-0.48	null		B8III		0.012	-0.014		null	19	V		null		null	null		null	*	B	true	false
62	null	BD+47 50	1,279	36,236	2,016					null	4.287917	47.9475	117.01	-14.53	5.89		-0.09	-0.44	null		B7III		0.008	0		null	-9	V?		0		null	null		null		B	false	false
63	24The And	BD+37 34	1,280	53,777	null					116	4.272917	38.681667	115.62	-23.7	4.61		0.06	0.04	0.01		A2V		-0.05	-0.019		0.022	1	V		107		null	null		null	*	A	true	false
64	null	CP-79 7	1,324	255,652	null					null	4.204167	-78.780556	305.07	-38.2	6.77		0.46	0.08	null		F3III		0.077	-0.043		null	-13			null		null	null		null		F	false	false
65	null	BD+50 46	1,337	21,273	null	I				AO Cas	4.429167	51.433056	117.59	-11.09	6.14		-0.13	-0.97	null		O9IIInn		-0.005	-0.004		null	-35	SB2O		135		null	null		null	*	O	true	false
66	null	BD-19 30	1,343	147,205	null					null	4.385833	-19.051111	77.21	-78.78	6.45		0.37	null	null		F4IV-V		0.015	0.003		null	-5			null		null	null		null		F	false	false
67	null	BD+00 28	1,367	109,119	2,017					null	4.44875	1.688889	105.89	-60.07	6.17		0.94	0.73	null		K0II		0.095	0.012		null	-9			null		null	null		null		K	false	false
68	25Sig And	BD+35 44	1,404	53,798	1,005					118	4.582083	36.785278	115.59	-25.61	4.52		0.05	0.07	0		A2V		-0.063	-0.041		0.023	-8	SB		103		null	null		null	*	A	true	false
69	null	BD+10 25	1,419	91,832	null					null	4.571667	11.205833	110	-50.83	6.05		1.03	null	null		K0III		-0.036	-0.038		null	9			null		null	null		null		K	false	false
70	26 And	BD+42 48	1,438	36,256	null				254	119	4.675417	43.791111	116.7	-18.68	6.11		-0.08	-0.35	null		B8V		0.02	-0.003		null	7			null		4.1	6.2		null	*	B	true	false
71	null	BD+30 35	1,439	53,803	1,006					null	4.659583	31.517222	114.79	-30.84	5.87		-0.01	0	null		A0IV		0.058	-0.006		null	-5			53		null	null		null		A	false	false
72	null	BD-08 38	1,461	128,690	null					null	4.674167	-8.052778	99.29	-69.4	6.46		0.68	0.29	null		G0V		0.413	-0.139		0.053	-10	V?		null		null	null		null	*	G	false	false
73	null	CD-43 64	1,483	215,047	null					null	4.6775	-43.235278	323.2	-72.58	6.33		1.21	null	null		K2III		0.056	0.012		null	12			null		null	null		null		K	false	false
74	8Iot Cet	BD-09 48	1,522	128,694	9	I		W		123	4.857083	-8.823889	98.98	-70.19	3.56		1.22	1.25	0.59		K1.5III		-0.014	-0.036		0.013	19		<	17		4.8	108.8	AC	3	*	K	true	false
75	null	BD+39 56	1,527	36,269	null					null	4.923333	40.729722	116.46	-21.74	6.33		1.18	null	null		K1III		-0.026	-0.01		null	-38			null		null	null		null		K	false	false
76	null	BD+48 79	1,561	36,272	null					null	5.021667	48.865278	117.63	-13.68	6.52		null	null	null		A0V s		0.005	-0.017		null	-3	V		57		null	null		null		A	false	false
77	Zet Tuc	CP-65 13	1,581	248,163	10	I	'			null	5.017917	-64.874722	308.35	-51.9	4.23		0.58	0.02	0.33		F9V		1.705	1.164		0.134	9			0		null	null		null		F	false	false
78	null	BD+30 42	1,606	53,820	null					128	5.101667	30.935833	115.13	-31.47	5.9		-0.1	-0.46	null		B7V		0.021	0.004		null	4			125		null	null		null		B	true	false
79	null	BD+32 45	1,632	53,825	null	I				null	5.189583	32.911389	115.53	-29.52	5.79		1.59	null	1		K5III		-0.026	-0.014		null	-36			null		null	null		null		K	false	false
80	41 Psc	BD+07 36	1,635	109,152	1,008	I				132	5.149583	8.190278	109.91	-53.9	5.37		1.34	1.55	null		gK3		-0.002	0.008		null	16			null		null	null		null		null	true	false
81	null	BD+10 32	1,663	91,858	null				287	null	5.227083	10.976944	110.93	-51.18	6.56		null	null	null		A0V		-0.046	-0.028	D	0.005	-18	V		56		0.2	0.6		null	*	A	false	false
82	27Rho And	BD+37 45	1,671	53,828	1,009					null	5.280417	37.968611	116.37	-24.52	5.18		0.42	0.05	null		F5III		0.06	-0.04		0.017	9			41		null	null		null		F	false	false
83	Pi Tuc	CP-70 12	1,685	248,167	2,018					null	5.1625	-69.625	306.87	-47.27	5.51		-0.05	-0.14	null		B9V		-0.007	0		0.011	12			null		null	null		null		B	false	false
84	Iot Scl	CD-29 86	1,737	166,207	null					null	5.38	-28.981667	15.52	-83.15	5.18		1	0.82	null		G5III		0.04	-0.074		0.027	21			null		null	null		null		G	false	false
85	null	BD-20 50	1,760	166,210	null	I				T Cet	5.442917	-20.057778	77.51	-80.2	5.12		1.82	1.78	null		M5IIe		0.071	-0.005		null	29	V		null		null	null		null	*	M	true	false
86	42 Psc	BD+12 25	1,796	91,866	2,020				303	null	5.60625	13.4825	112.19	-48.78	6.23		1.22	null	null		K3III		0.062	0.021		null	3	V		null		4.6	28.9		null	*	K	false	false
87	null	CP-78 9	1,801	255,663	null					null	5.369167	-77.426944	305.04	-39.58	5.97		1.4	1.4	null		K3III		0.002	-0.01		null	21	V		null		null	null		null		K	false	false
88	9 Cet	BD-13 60	1,835	147,237	null	I	'	W		BE Cet	5.715833	-12.209444	97.34	-73.64	6.39		0.66	0.24	null		G2V		0.394	0.061		0.049	-7	V		6		5.4	202.1		null	*	G	true	false
89	null	CD-31 138	1,909	192,495	null					null	5.8025	-31.036111	358.89	-82.7	6.55		0	-0.31	null		B9IVMn		0.029	-0.003		null	1	SB1		25		null	null		null	*	B	false	false
90	null	BD+37 58	1,967	53,860	null	I	:	W		R And	6.008333	38.577222	117.07	-23.98	7.39		1.97	1.25	2.21		S6.5IIIeZr6Ti2		-0.007	-0.023		null	-11	V		null		4.9	84.6		null	*	null	true	false
91	null	BD+51 62	1,976	21,366	null				328	155	6.065	52.02	118.68	-10.63	5.57		-0.12	-0.6	null		B5IV		0.013	-0.004	D	0.004	-7	SBO		230		2.5	0.2		null	*	B	true	false
92	NOVA 1572		null	null	null					B Cas	null	null	null	null	null		null	null	null		null		null	null		null	null			null		null	null		null	*	null	true	false
93	12 Cas	BD+61 69	2,011	11,172	null					null	6.197917	61.831111	119.79	-0.88	5.4		0	-0.16	null		B9III		0.012	-0.001		0.015	-4	V		154		null	null		null		B	false	false
94	null	BD-03 49	2,023	128,743	2,021					null	6.12375	-2.219167	107.27	-64.27	6.07		1.22	1.23	null		K1III		-0.033	-0.044		null	15			null		null	null		null		K	false	false
95	47 Tuc		null	null	null					null	null	null	null	null	null		null	null	null		null		null	null		null	null			null		null	null		null	*	null	false	false
96	null	BD+52 61	2,054	21,381	2,022					159	6.276667	53.046944	118.92	-9.62	5.74		-0.06	-0.31	null		B9IV		0.023	-0.002		null	10	V		210		null	null		null	*	B	true	false
97	44 Psc	BD+01 57	2,114	109,192	1,010			W		null	6.350833	1.939722	109.73	-60.26	5.77		0.86	0.57	null		G5III		-0.013	-0.015		null	-4		<	20		null	null		null	*	G	false	false
98	Bet Hyi	CP-77 16	2,151	255,670	11	I	'			161	6.437917	-77.254167	304.81	-39.77	2.8		0.62	0.11	0.34		G2IV		2.215	0.324		0.153	23			null		null	null		null	*	G	true	false
99	Alp Phe	CD-42 116	2,261	215,093	12	I		A		null	6.570833	-42.306111	320.02	-73.98	2.39		1.09	0.88	0.6		K0III		0.203	-0.396		0.035	75	SB1O		null		null	0.1		null	*	K	false	false
100	Kap Phe	CD-44 101	2,262	215,092	null					null	6.550833	-43.68	318.42	-72.68	3.94		0.17	0.11	0.08		A7V		0.109	0.029		0.072	11			219		null	null		null		A	false	false

End of preview. Expand in Data Studio

Bright Star Catalogue (BSC5)

Part of the Astronomy Datasets collection on Hugging Face.

The Bright Star Catalogue (BSC5, 5th Revised Edition) containing 9,110 naked-eye stars brighter than visual magnitude ~6.5 with UBVRI photometry, MK spectral types, proper motions, radial and rotational velocities, and multiplicity information.

Dataset description

The Bright Star Catalogue (Hoffleit & Warren, 1991) is THE standard reference for naked-eye stars. Originally compiled at Yale University Observatory, the 5th Revised Edition contains 9,110 entries covering every star visible to the unaided eye from the entire sky. It includes Harvard Revised (HR) photometry numbers, Henry Draper (HD) numbers, UBVRI broadband photometry, MK spectral classification, proper motions, trigonometric parallaxes, radial velocities, rotational velocities (v sin i), and flags for variability and multiplicity.

Schema

Column	Type	Description
`hr_number`	int64	Harvard Revised (HR) photometry number (primary key)
`name`	string	Common star name (if any)
`hd_number`	int64	Henry Draper catalog number
`ra_deg`	float64	Right ascension (degrees, J2000)
`dec_deg`	float64	Declination (degrees, J2000)
`v_mag`	float64	Visual (V) magnitude
`b_v_color`	float64	B-V color index
`u_b_color`	float64	U-B color index
`r_i_color`	float64	R-I color index
`spectral_type`	string	MK spectral classification
`spectral_class`	string	Spectral class letter (O, B, A, F, G, K, M)
`pm_ra_arcsec_yr`	float64	Proper motion in RA (arcsec/yr)
`pm_dec_arcsec_yr`	float64	Proper motion in Dec (arcsec/yr)
`radial_velocity_kms`	float64	Radial velocity (km/s)
`rotational_velocity_kms`	float64	Rotational velocity v sin i (km/s)
`parallax_mas`	float64	Trigonometric parallax (milliarcseconds)
`variable_name`	string	Variable star designation
`is_variable`	bool	True if star is a known variable
`multiplicity_flag`	string	Multiplicity catalog codes
`is_multiple`	bool	True if star is in a multiple system

Quick stats

9,110 stars total
Brightest: -1.46 mag / Faintest: 7.96 mag
2,182 variable stars, 0 multiple systems

By spectral class

O: 51
B: 1,757
A: 1,963
F: 1,287
G: 1,145
K: 2,065
M: 506

Usage

from datasets import load_dataset

ds = load_dataset("juliensimon/bright-star-catalog", split="train")
df = ds.to_pandas()

# Brightest stars
bright = df.nsmallest(20, "v_mag")
print(bright[["hr_number", "name", "v_mag", "spectral_type"]])

# Color-magnitude diagram
import matplotlib.pyplot as plt
valid = df.dropna(subset=["b_v_color", "v_mag"])
plt.scatter(valid["b_v_color"], valid["v_mag"], s=1, alpha=0.5)
plt.gca().invert_yaxis()
plt.xlabel("B-V Color Index")
plt.ylabel("V Magnitude")
plt.title("Bright Star Catalogue: Color-Magnitude Diagram")

# Spectral class distribution
df["spectral_class"].value_counts().sort_index().plot(kind="bar")
plt.title("Stars by Spectral Class")

Data source

Hoffleit, D. & Warren, W.H. Jr. (1991), "The Bright Star Catalogue, 5th Revised Ed.", Yale University Observatory. Accessed via VizieR V/50, CDS Strasbourg.

Related datasets

wolf-rayet-stars -- Wolf-Rayet Star Catalogue
brown-dwarf-catalog -- Brown Dwarf Catalog
hipparcos-catalog -- Hipparcos Star Catalog

Pipeline

Source code: juliensimon/space-datasets

Support

If you find this dataset useful, please give it a ❤️ on the dataset page and share feedback in the Community tab! Also consider giving a ⭐️ to the space-datasets repo.

Citation

@dataset{bright_star_catalog,
  author = {Simon, Julien},
  title = {Bright Star Catalogue (BSC5)},
  year = {2026},
  publisher = {Hugging Face},
  url = {https://huggingface.co/datasets/juliensimon/bright-star-catalog},
  note = {Based on Bright Star Catalogue 5th Rev. Ed. (Hoffleit & Warren 1991) via VizieR V/50}
}