Selected UBVRI Photometric Standard Stars from Landolt 1992, AJ, 104, 340

Standard stars within the following RA bands:

RA = 00-01^h, RA = 01-02^h, RA = 02-03^h, RA = 03-04^h, RA = 04-05^h, RA = 05-06^h
RA = 06-07^h, RA = 07-08^h, RA = 08-09^h, RA = 09-10^h, RA = 10-11^h, RA = 11-12^h
RA = 12-13^h, RA = 13-14^h, RA = 14-15^h, RA = 15-16^h, RA = 16-17^h, RA = 17-18^h
RA = 18-19^h, RA = 19-20^h, RA = 20-21^h, RA = 21-22^h, RA = 22-23^h, RA = 23-24^h

Recommended Fields

Finding charts for these stars may be viewed by clicking either the star's name or the chart number(s). All charts have a 6.8 arcmin x 6.8 arcmin field of view with north at the top and east to the left.

RA = 00-01^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

92 245	00:54:16	+00:39:51	13.818	1.418	1.189	0.929	0.907	RED	1
92 249	00:54:34	+00:41:05	14.325	0.699	0.240	0.399	0.370		1,2
92 250	00:54:37	+00:38:56	13.178	0.814	0.480	0.446	0.394		1,2
92 252	00:54:48	+00:39:23	14.932	0.517	-0.140	0.326	0.332		2
92 253	00:54:52	+00:40:20	14.085	1.131	0.955	0.719	0.616		2
92 410	00:55:15	+01:01:49	14.984	0.398	-0.134	0.239	0.242		3
92 412	00:55:16	+01:01:53	15.036	0.457	-0.152	0.285	0.304		3
92 342	00:55:10	+00:43:14	11.613	0.436	-0.042	0.266	0.270		4
92 263	00:55:40	+00:36:18	11.782	1.048	0.843	0.563	0.522		5
92 425	00:55:59	+00:52:58	13.941	1.191	1.173	0.755	0.627		6
92 355	00:56:06	+00:50:47	14.965	1.164	1.201	0.759	0.645		6
92 430	00:56:16	+00:53:16	14.440	0.567	-0.040	0.338	0.338		6
92 276	00:56:27	+00:41:53	12.036	0.629	0.067	0.368	0.357		7
92 282	00:56:47	+00:38:29	12.969	0.318	-0.038	0.201	0.221		7
92 288	00:57:17	+00:36:46	11.630	0.855	0.472	0.489	0.441		8

RA = 01-02^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

F 11	01:04:22	+04:13:37	12.065	-0.240	-0.978	-0.120	-0.142	BLUE	9
F 16	01:54:08	-06:42:54	12.406	-0.012	0.009	-0.003	0.002	BLUE	10
93 317	01:54:38	+00:43:00	11.546	0.488	-0.055	0.293	0.298		11
93 333	01:55:05	+00:45:44	12.011	0.832	0.436	0.469	0.422		12
93 424	01:55:26	+00:56:43	11.620	1.083	0.943	0.554	0.502		13

RA = 02-03^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

G3 33	02:00:09	+13:04:04	12.298	1.804	1.316	1.355	1.751	RED	14
F 22	02:30:17	+05:15:51	12.799	-0.054	-0.806	-0.103	-0.105	BLUE	15
F 24	02:35:08	+03:43:57	12.411	-0.203	-1.169	0.090	0.364	BLUE	16
94 171	02:53:38	+00:17:19	12.659	0.817	0.304	0.480	0.483		17
94 242	02:57:21	+00:18:38	11.728	0.301	0.107	0.178	0.184		18
94 251	02:57:46	+00:16:02	11.204	1.219	1.281	0.659	0.587		18
94 702	02:58:13	+01:10:53	11.594	1.418	1.621	0.756	0.673	RED	19

RA = 03-04^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

GD 50	03:48:50	-00:58:33	14.063	-0.276	-1.191	-0.145	-0.180	BLUE	20
95 301	03:52:41	+00:31:21	11.216	1.290	1.296	0.692	0.620		21
95 302	03:52:42	+00:31:18	11.694	0.825	0.447	0.471	0.420		21
95 96	03:52:54	+00:00:19	10.010	0.147	0.072	0.079	0.095		22
95 190	03:53:13	+00:16:20	12.627	0.287	0.236	0.195	0.220		23
95 193	03:53:20	+00:16:31	14.338	1.211	1.239	0.748	0.616		23
95 42	03:53:44	-00:04:33	15.606	-0.215	-1.111	-0.119	-0.180	BLUE	24
95 43	03:53:49	-00:03:01	10.803	0.510	-0.016	0.308	0.316		24
95 317	03:53:44	+00:29:50	13.449	1.320	1.120	0.768	0.708		25
95 263	03:53:47	+00:26:38	12.679	1.500	1.559	0.801	0.711	RED	25
95 271	03:54:17	+00:18:49	13.669	1.287	0.916	0.734	0.717		26
95 328	03:54:19	+00:36:28	13.525	1.532	1.298	0.908	0.868	RED	27
95 329	03:54:24	+00:37:07	14.617	1.184	1.093	0.766	0.642		27
95 330	03:54:31	+00:29:05	12.174	1.999	2.233	1.166	1.100	RED	28
95 275	03:54:44	+00:27:20	13.479	1.763	1.740	1.011	0.931	RED	28
95 276	03:54:46	+00:25:54	14.118	1.225	1.218	0.748	0.646		28
95 60	03:54:49	-00:07:05	13.429	0.776	0.197	0.464	0.449		30
95 218	03:54:50	+00:10:08	12.095	0.708	0.208	0.397	0.370		29,31
95 132	03:54:51	+00:05:21	12.064	0.448	0.300	0.259	0.287		29
95 62	03:55:00	-00:02:55	13.538	1.355	1.181	0.742	0.685		30
95 227	03:55:08	+00:14:35	15.779	0.771	0.034	0.515	0.552		31
95 142	03:55:09	+00:01:19	12.927	0.588	0.097	0.371	0.375		32
95 74	03:55:31	-00:09:13	11.531	1.126	0.686	0.600	0.567		33
95 231	03:55:39	+00:10:43	14.216	0.452	0.297	0.270	0.290		34
95 149	03:55:44	+00:07:05	10.938	1.593	1.564	0.874	0.811	RED	34
95 284	03:55:44	+00:26:34	13.669	1.398	1.073	0.818	0.766		35
95 236	03:56:13	+00:08:43	11.491	0.736	0.162	0.420	0.411		36

RA = 04-05^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

96 36	04:51:43	-00:10:12	10.591	0.247	0.118	0.134	0.136		37
96 737	04:52:35	+00:22:29	11.716	1.334	1.160	0.733	0.695		38
96 83	04:52:59	-00:14:44	11.719	0.179	0.202	0.093	0.097		39
96 235	04:53:19	-00:05:04	11.140	1.074	0.898	0.559	0.510		40

RA = 05-06^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

G97 42	05:28:01	+09:39:07	12.443	1.639	1.259	1.171	1.485	RED	41
G102 22	05:42:05	+12:30:14	11.509	1.621	1.134	1.211	1.590	RED	42
GD 71	05:52:28	+15:53:15	13.032	-0.249	-1.107	-0.137	-0.164	BLUE	43
97 249	05:57:07	+00:01:12	11.733	0.648	0.100	0.369	0.353		44
97 345	05:57:26	+00:20:26	11.608	1.655	1.680	0.928	0.844	RED	45
97 351	05:57:37	+00:13:42	9.781	0.202	0.096	0.124	0.141		46
97 75	05:57:55	-00:09:29	11.483	1.872	2.100	1.047	0.952	RED	47
97 284	05:58:25	+00:05:12	10.788	1.363	1.087	0.774	0.725		48

RA = 06-07^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

98 563	06:51:32	-00:26:26	14.162	0.416	-0.190	0.294	0.317		49
98 978	06:51:34	-00:11:28	10.572	0.609	0.094	0.349	0.322		50
98 618	06:51:50	-00:21:17	12.723	2.192	2.144	1.254	1.151	RED	51
98 185	06:52:02	-00:27:21	10.536	0.202	0.113	0.109	0.124		52
98 193	06:52:04	-00:27:18	10.030	1.180	1.152	0.615	0.537		52
98 666	06:52:10	-00:23:34	12.732	0.164	-0.004	0.091	0.108		52
98 688	06:52:19	-00:23:34	12.754	0.293	0.245	0.158	0.180		52
98 653	06:52:05	-00:18:19	9.539	-0.004	-0.099	0.009	0.008	BLUE	53
98 650	06:52:05	-00:19:40	12.271	0.157	0.110	0.080	0.086		53
98 671	06:52:12	-00:18:22	13.385	0.968	0.719	0.575	0.494		53
98 670	06:52:12	-00:19:17	11.930	1.356	1.313	0.723	0.653		53
98 676	06:52:14	-00:19:21	13.068	1.146	0.666	0.683	0.673		53
98 675	06:52:14	-00:19:41	13.398	1.909	1.936	1.082	1.002	RED	53
98 682	06:52:17	-00:19:42	13.749	0.632	0.098	0.366	0.352		53
98 685	06:52:19	-00:20:19	11.954	0.463	0.096	0.290	0.280		53
98 1087	06:52:21	-00:15:50	14.439	1.595	1.284	0.928	0.882	RED	53,54
98 1102	06:52:28	-00:13:43	12.113	0.314	0.089	0.193	0.195		54
98 1124	06:52:38	-00:16:34	13.707	0.315	0.258	0.173	0.201		54
98 1122	06:52:38	-00:17:05	14.090	0.595	-0.297	0.376	0.442		54
98 724	06:52:38	-00:19:22	11.118	1.104	0.904	0.575	0.527		54
98 733	06:52:40	-00:17:16	12.238	1.285	1.087	0.698	0.650		54

RA = 07-08^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

RU 149G	07:24:12	-00:31:46	12.829	0.541	0.033	0.322	0.322		55
RU 149A	07:24:14	-00:32:44	14.495	0.298	0.118	0.196	0.196		55
RU 149F	07:24:15	-00:30:58	13.471	1.115	1.025	0.594	0.538		55
RU 149	07:24:15	-00:32:55	13.866	-0.129	-0.779	-0.040	-0.068	BLUE	55
RU 149D	07:24:16	-00:32:38	11.480	-0.037	-0.287	0.021	0.008	BLUE	55
RU 149C	07:24:18	-00:32:17	14.425	0.195	0.141	0.093	0.127		55
RU 149B	07:24:18	-00:32:58	12.642	0.662	0.151	0.374	0.354		55
RU 149E	07:24:19	-00:31:08	13.718	0.522	-0.007	0.321	0.314		55
RU 152F	07:29:51	-02:04:29	14.564	0.635	0.069	0.382	0.315		56
RU 152E	07:29:51	-02:05:09	12.362	0.042	-0.086	0.030	0.034		56
RU 152	07:29:55	-02:06:18	13.014	-0.190	-1.073	-0.057	-0.087	BLUE	56
RU 152B	07:29:56	-02:05:39	15.019	0.500	0.022	0.290	0.309		56
RU 152A	07:29:57	-02:06:02	14.341	0.543	-0.085	0.325	0.329		56
RU 152C	07:29:59	-02:05:18	12.222	0.573	-0.013	0.342	0.340		56
RU 152D	07:30:03	-02:04:16	11.076	0.875	0.491	0.473	0.449		56
99 438	07:55:54	-00:16:51	9.398	-0.155	-0.725	-0.059	-0.081	BLUE	57
99 447	07:56:07	-00:20:43	9.417	-0.067	-0.225	-0.032	-0.041	BLUE	57

RA = 08-09^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

100 241	08:52:35	-00:39:48	10.139	0.157	0.101	0.078	0.085		58
100 162	08:53:15	-00:43:29	9.150	1.276	1.497	0.649	0.553		59
100 280	08:53:36	-00:36:41	11.799	0.494	-0.002	0.295	0.291		60
100 394	08:53:55	-00:32:21	11.384	1.317	1.457	0.705	0.636		60

RA = 09-10^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

PG0918+029D	09:21:22	+02:47:30	12.272	1.044	0.821	0.575	0.535		61
PG0918+029	09:21:28	+02:46:03	13.327	-0.271	-1.081	-0.129	-0.159	BLUE	61
PG0918+029B	09:21:34	+02:48:01	13.963	0.765	0.366	0.417	0.370		61
PG0918+029A	09:21:35	+02:46:20	14.490	0.536	-0.032	0.325	0.336		61
PG0918+029C	09:21:42	+02:46:38	13.537	0.631	0.087	0.367	0.357		61
-12 2918	09:31:18	-13:29:20	10.067	1.501	1.166	1.067	1.318	RED	62
PG0942-029	09:45:12	-03:09:24	14.004	-0.294	-1.175	-0.130	-0.149	BLUE	63
101 315	09:54:51	-00:27:28	11.249	1.153	1.056	0.612	0.559		64
101 316	09:54:52	-00:18:32	11.552	0.493	0.032	0.293	0.291		65
101 320	09:55:33	-00:22:31	13.823	1.052	0.690	0.581	0.561		66
101 404	09:55:41	-00:18:21	13.459	0.996	0.697	0.530	0.500		66
101 324	09:55:57	-00:23:14	9.742	1.161	1.148	0.591	0.519		67
101 326	09:56:08	-00:27:08	14.923	0.729	0.227	0.406	0.375		68
101 327	09:56:09	-00:25:50	13.441	1.155	1.139	0.717	0.574		67,68
101 268	09:56:19	-00:31:55	14.380	1.531	1.381	1.040	1.200	RED	68
101 330	09:56:21	-00:27:19	13.723	0.577	-0.026	0.346	0.338		68
101 413	09:56:14	-00:11:56	12.583	0.983	0.716	0.529	0.497		69
101 281	09:57:04	-00:31:38	11.575	0.812	0.419	0.452	0.412		70
101 429	09:57:32	-00:18:17	13.496	0.980	0.782	0.617	0.526		71
101 431	09:57:37	-00:17:51	13.684	1.246	1.144	0.808	0.708		71
101 207	09:57:52	-00:47:35	12.419	0.515	-0.078	0.321	0.320		72
101 363	09:58:19	-00:25:35	9.874	0.261	0.129	0.146	0.151		73

RA = 10-11^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

GD 108	10:00:47	-07:33:31	13.561	-0.215	-0.942	-0.098	-0.122	BLUE	74
G162 66	10:33:43	-11:40:39	13.012	-0.165	-0.996	-0.126	-0.141	BLUE	75
PG1034+001	10:37:04	-00:08:20	13.228	-0.365	-1.274	-0.155	-0.203	BLUE	76
PG1047+003	10:50:03	-00:00:32	13.474	-0.290	-1.121	-0.132	-0.162	BLUE	77
PG1047+003A	10:50:06	-00:01:08	13.512	0.688	0.168	0.422	0.418		77
PG1047+003B	10:50:09	-00:02:00	14.751	0.679	0.172	0.391	0.371		77
PG1047+003C	10:50:18	-00:00:23	12.453	0.607	-0.019	0.378	0.358		77
G44 40	10:50:54	+06:48:57	11.675	1.644	1.213	1.216	1.568	RED	78
102 620	10:55:06	-00:48:19	10.069	1.083	1.020	0.642	0.524		79
G45 20	10:56:38	+07:02:23	13.507	2.034	1.165	1.823	2.174	RED	80
102 1081	10:57:04	-00:13:10	9.903	0.664	0.255	0.366	0.333		81
G163 27	10:57:35	-07:31:23	14.338	0.288	-0.548	0.206	0.210		82

RA = 11-12^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

G163 50	11:08:00	-05:09:26	13.059	0.035	-0.688	-0.085	-0.072		83
G163 51	11:08:07	-05:13:47	12.576	1.506	1.228	1.084	1.359	RED	83
G10 50	11:47:44	+00:48:55	11.153	1.752	1.318	1.294	1.673	RED	84
103 302	11:56:06	-00:47:54	9.861	0.368	-0.056	0.228	0.237		85
103 626	11:56:46	-00:21:54	11.836	0.413	-0.057	0.262	0.274		86

RA = 12-13^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

G12 43	12:33:20	+09:01:08	12.467	1.846	1.085	1.530	1.944	RED	87
104 428	12:41:41	-00:26:27	12.630	0.985	0.748	0.534	0.497		88
104 430	12:41:50	-00:25:52	13.858	0.652	0.131	0.364	0.363		88
104 440	12:42:14	-00:24:48	15.114	0.440	-0.227	0.289	0.317		89
104 330	12:42:12	-00:40:40	15.296	0.594	-0.028	0.369	0.371		90
104 334	12:42:21	-00:40:28	13.484	0.518	-0.067	0.323	0.331		90
104 336	12:42:25	-00:39:58	14.404	0.830	0.495	0.461	0.403		90
104 338	12:42:31	-00:38:32	16.059	0.591	-0.082	0.348	0.372		90
104 455	12:42:52	-00:24:19	15.105	0.581	-0.024	0.360	0.357		91
104 460	12:43:03	-00:28:21	12.886	1.287	1.243	0.813	0.693		91,92
104 461	12:43:07	-00:32:21	9.705	0.476	-0.030	0.289	0.290		92
104 350	12:43:15	-00:33:21	13.634	0.673	0.165	0.383	0.353		92
104 490	12:44:33	-00:25:53	12.572	0.535	0.048	0.318	0.312		93
104 598	12:45:17	-00:16:37	11.479	1.106	1.050	0.670	0.546		94

RA = 13-14^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

PG1323-085	13:25:39	-08:49:16	13.481	-0.140	-0.681	-0.048	-0.078	BLUE	95
PG1323-085C	13:25:50	-08:48:37	14.003	0.707	0.245	0.395	0.363		95
PG1323-085B	13:25:50	-08:51:53	13.406	0.761	0.265	0.426	0.407		95
PG1323-085D	13:26:05	-08:50:34	12.080	0.587	0.005	0.346	0.335		95
105 815	13:40:04	-00:02:10	11.453	0.385	-0.237	0.267	0.291		96
+2 2711	13:42:21	+01:30:17	10.367	-0.166	-0.697	-0.072	-0.095	BLUE	97
121968	13:58:52	-02:55:12	10.254	-0.186	-0.908	-0.073	-0.098	BLUE	98

RA = 14-15^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

106 700	14:40:52	-00:23:36	9.785	1.362	1.582	0.728	0.641		99

RA = 15-16^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

107 568	15:37:53	-00:17:18	13.054	1.149	0.862	0.625	0.595		100
107 1006	15:38:34	+00:14:22	11.712	0.766	0.279	0.442	0.421		101
107 456	15:38:43	-00:19:47	12.919	0.921	0.589	0.537	0.478		102
107 592	15:38:51	-00:17:10	11.847	1.318	1.380	0.709	0.647		102
107 351	15:38:46	-00:32:06	12.342	0.562	-0.005	0.351	0.358		103
107 599	15:39:09	-00:14:28	14.675	0.698	0.243	0.433	0.438		104
107 601	15:39:14	-00:13:26	14.646	1.412	1.265	0.923	0.835	RED	104
107 602	15:39:19	-00:15:29	12.116	0.991	0.585	0.545	0.531		104
107 626	15:40:06	-00:17:28	13.468	1.000	0.728	0.600	0.527		105
107 627	15:40:08	-00:17:22	13.349	0.779	0.226	0.465	0.454		105
107 484	15:40:17	-00:21:13	11.311	1.237	1.291	0.664	0.577		105
107 639	15:40:45	-00:17:11	14.197	0.640	-0.026	0.399	0.404		106

RA = 16-17^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

G153 41	16:17:55	-15:35:52	13.422	-0.205	-1.133	-0.135	-0.154	BLUE	107
-12 4523	16:30:18	-12:39:08	10.069	1.568	1.192	1.152	1.498	RED	108
PG1633+099	16:35:24	+09:47:50	14.397	-0.192	-0.974	-0.093	-0.116	BLUE	109
PG1633+099A	16:35:26	+09:47:53	15.256	0.873	0.320	0.505	0.511		109
PG1633+099B	16:35:34	+09:46:22	12.969	1.081	1.007	0.590	0.502		109
PG1633+099C	16:35:38	+09:46:16	13.229	1.134	1.138	0.618	0.523		109
PG1633+099D	16:35:40	+09:46:43	13.691	0.535	-0.025	0.324	0.327		109
108 475	16:37:00	-00:34:40	11.309	1.380	1.462	0.744	0.665		110
108 551	16:37:47	-00:33:06	10.703	0.179	0.178	0.099	0.110		111

RA = 17-18^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

109 71	17:44:06	-00:24:59	11.493	0.323	0.153	0.186	0.223		112
109 381	17:44:12	-00:20:32	11.730	0.704	0.225	0.428	0.435		112
109 954	17:44:15	-00:02:17	12.436	1.296	0.956	0.764	0.731		113
109 231	17:45:20	-00:25:51	9.332	1.462	1.593	0.785	0.704	RED	114
109 537	17:45:42	-00:21:34	10.353	0.609	0.227	0.376	0.392		114

RA = 18-19^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

G21 15	18:27:13	+04:03:05	13.889	0.092	-0.598	-0.039	-0.030	BLUE	115
110 229	18:40:45	+00:01:51	13.649	1.910	1.391	1.198	1.155	RED	116
110 230	18:40:51	+00:02:23	14.281	1.084	0.728	0.624	0.596		116
110 232	18:40:52	+00:01:58	12.516	0.729	0.147	0.439	0.450		116
110 233	18:40:52	+00:00:51	12.771	1.281	0.812	0.773	0.818		116
110 340	18:41:29	+00:15:22	10.025	0.303	0.127	0.170	0.182		117
110 477	18:41:43	+00:26:41	13.988	1.345	0.715	0.850	0.857		118
110 355	18:42:19	+00:08:24	11.944	1.023	0.504	0.652	0.727		119
110 361	18:42:45	+00:08:04	12.425	0.632	0.035	0.361	0.348		120
110 364	18:42:52	+00:07:54	13.615	1.133	1.095	0.697	0.585		120
110 365	18:42:57	+00:07:20	13.470	2.261	1.895	1.360	1.270	RED	120
110 499	18:43:07	+00:28:00	11.737	0.987	0.639	0.600	0.674		121
110 502	18:43:10	+00:27:40	12.330	2.326	2.326	1.373	1.250	RED	121
110 503	18:43:11	+00:29:43	11.773	0.671	0.506	0.373	0.436		121
110 280	18:43:07	-00:03:40	12.996	2.151	2.133	1.235	1.148	RED	122
110 441	18:43:34	+00:19:40	11.121	0.555	0.112	0.324	0.336		123
110 450	18:43:52	+00:22:58	11.585	0.944	0.691	0.552	0.625		123

RA = 19-20^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

111 775	19:37:16	+00:12:05	10.744	1.738	2.029	0.965	0.896	RED	124
111 773	19:37:16	+00:10:59	8.963	0.206	-0.210	0.119	0.144		124
111 1925	19:37:29	+00:25:01	12.388	0.395	0.262	0.221	0.253		125
111 1965	19:37:42	+00:26:50	11.419	1.710	1.865	0.951	0.877	RED	125
111 1969	19:37:44	+00:25:48	10.382	1.959	2.306	1.177	1.222	RED	125

RA = 20-21^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

112 595	20:41:18	+00:16:28	11.352	1.601	1.993	0.899	0.901	RED	126
112 704	20:42:02	+00:19:10	11.452	1.536	1.742	0.822	0.746	RED	127
112 223	20:42:14	+00:09:01	11.424	0.454	0.010	0.273	0.274		128
112 250	20:42:26	+00:07:43	12.095	0.532	-0.025	0.317	0.323		128
112 275	20:42:36	+00:07:21	9.905	1.210	1.299	0.647	0.569		128
112 805	20:42:46	+00:16:08	12.086	0.152	0.150	0.063	0.075		129
112 822	20:42:55	+00:15:04	11.549	1.031	0.883	0.558	0.502		129
MARK A2	20:43:54	-10:45:32	14.540	0.666	0.096	0.379	0.371		130
MARK A1	20:43:58	-10:47:11	15.911	0.609	-0.014	0.367	0.373		130
MARK A	20:43:59	-10:47:42	13.258	-0.242	-1.162	-0.115	-0.125	BLUE	130
MARK A3	20:44:02	-10:45:39	14.818	0.938	0.651	0.587	0.510		130

RA = 21-22^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

113 221	21:40:36	+00:21:00	12.071	1.031	0.874	0.550	0.490		131
113 339	21:40:56	+00:27:57	12.250	0.568	-0.034	0.340	0.347		132
113 241	21:41:09	+00:25:50	14.352	1.344	1.452	0.897	0.797		132
113 259	21:41:44	+00:17:37	11.742	1.194	1.221	0.621	0.543		133
113 466	21:41:28	+00:40:14	10.004	0.454	-0.001	0.281	0.282		134
113 475	21:41:51	+00:39:19	10.306	1.058	0.844	0.570	0.527		134
113 260	21:41:48	+00:23:52	12.406	0.514	0.069	0.308	0.298		135
113 492	21:42:28	+00:38:21	12.174	0.553	0.005	0.342	0.341		136
113 163	21:42:35	+00:16:46	14.540	0.658	0.106	0.380	0.355		137
113 177	21:42:56	+00:14:46	13.560	0.789	0.318	0.456	0.436		137,138
113 182	21:43:08	+00:14:51	14.370	0.659	0.065	0.402	0.422		138
113 195	21:43:40	+00:17:22	13.692	0.730	0.201	0.418	0.413		139
G93 48	21:52:25	+02:23:20	12.739	-0.008	-0.792	-0.097	-0.094	BLUE	140

RA = 22-23^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

PG2213-006A	22:16:24	-00:21:27	14.178	0.673	0.100	0.406	0.403		141
PG2213-006	22:16:28	-00:21:15	14.124	-0.217	-1.125	-0.092	-0.110	BLUE	141
G156 31	22:38:28	-15:19:17	12.361	1.993	1.408	1.648	2.042	RED	142
114 531	22:40:37	+00:51:56	12.094	0.733	0.186	0.422	0.403		143
114 637	22:40:43	+01:03:10	12.070	0.801	0.307	0.456	0.415		144
114 548	22:41:37	+00:59:07	11.601	1.362	1.573	0.738	0.651		146
114 750	22:41:45	+01:12:38	11.916	-0.041	-0.354	0.027	-0.015	BLUE	145
114 670	22:42:10	+01:10:17	11.101	1.206	1.223	0.645	0.561		147
114 176	22:43:11	+00:21:16	9.239	1.485	1.853	0.800	0.717	RED	148
G156 57	22:53:16	-14:15:38	10.180	1.556	1.182	1.174	1.542	RED	149

RA = 23-24^h


Star	RA (J2000)	Dec (J2000)	V	*B-V*	*U-B*	*V-R*	*R-I*	Color	Chart

GD 246	23:12:23	+10:47:04	13.094	-0.318	-1.187	-0.148	-0.183	BLUE	150
F 108	23:16:12	-01:50:35	12.958	-0.235	-1.052	-0.103	-0.135	BLUE	151
115 486	23:41:33	+01:16:45	12.482	0.493	-0.049	0.298	0.308		152
115 420	23:42:36	+01:05:58	11.161	0.468	-0.027	0.286	0.293		153
115 271	23:42:41	+00:45:10	9.695	0.615	0.101	0.353	0.349		154
115 516	23:44:15	+01:14:13	10.434	1.028	0.759	0.563	0.534		155
PG2349+002	23:51:53	+00:28:17	13.277	-0.191	-0.921	-0.103	-0.116	BLUE	156

Selected UBVRI Photometric Standard Stars from Landolt 1992, AJ, 104, 340

Standard stars within the following RA bands:

Recommended Fields

RA = 00-01h

RA = 01-02h

RA = 02-03h

RA = 03-04h

RA = 04-05h

RA = 05-06h

RA = 06-07h

RA = 07-08h

RA = 08-09h

RA = 09-10h

RA = 10-11h

RA = 11-12h

RA = 12-13h

RA = 13-14h

RA = 14-15h

RA = 15-16h

RA = 16-17h

RA = 17-18h

RA = 18-19h

RA = 19-20h

RA = 20-21h

RA = 21-22h

RA = 22-23h

RA = 23-24h