VI. Analysis of the 2MASS Second Incremental Release Catalogs

3. Color Transformations for the 2MASS Second Incremental Data Release

Table 5: Primary CIT Standards

Name Coordinates (J2000) CIT Photometry 2MASS Photometry

RA Dec J H K Quality J EJ H EH K_s EK_s N

HD 225023 00:02:46.02 +35:48:55.6 7.065 6.985 6.960 c 7.022 0.010 6.944 0.015 6.933 0.010 2

G 158-27 00:06:43.26 -07:32:14.4 8.305 7.755 7.430 c 8.351 0.012 7.786 0.034 7.448 0.015 1

HD 2811 00:31:18.50 -43:36:23.0 7.170 7.090 7.065 a+ 7.149 0.012 7.132 0.020 7.060 0.014 2

HD 3029 00:33:39.54 +20:26:01.7 7.250 7.120 7.090 c 7.196 0.035 7.086 0.024 7.043 0.019 1

HD 18881 03:03:31.95 +38:24:36.0 7.125 7.130 7.140 c 7.113 0.024 7.133 0.014 7.119 0.014 2

HD 19904 03:10:42.81 -39:03:05.5 6.720 6.660 6.640 a+ 6.683 0.013 6.677 0.015 6.596 0.011 2

HD 22686 03:38:55.09 +02:45:48.7 7.195 7.190 7.185 a 7.171 0.014 7.183 0.053 7.145 0.018 1

HD 38921 05:47:22.20 -38:13:51.3 7.570 7.550 7.535 a+ 7.523 0.021 7.603 0.035 7.502 0.015 1

HD 40335 05:58:13.54 +01:51:23.0 6.540 6.470 6.450 a 6.548 0.026 6.463 0.036 6.438 0.011 1

HD 44612 06:24:46.60 +43:32:54.4 7.060 7.035 7.040 c 7.056 0.028 7.043 0.012 7.044 0.016 1

HD 75223 08:47:21.99 -39:47:59.2 7.325 7.295 7.280 a+ 7.291 0.025 7.332 0.038 7.287 0.042 1

HD 77281 09:01:38.01 -01:28:34.7 7.105 7.050 7.030 a+ 7.041 0.011 7.028 0.011 7.002 0.013 3

Gl 347a 09:28:53.35 -07:22:14.8 8.410 7.860 7.630 b 8.482 0.018 7.899 0.031 7.627 0.017 1

HD 84800 09:48:44.65 +43:39:55.6 7.560 7.530 7.530 c 7.542 0.025 7.517 0.024 7.481 0.023 1

Gl 390 10:25:10.89 -10:13:43.5 6.870 6.250 6.045 a 6.874 0.013 6.263 0.031 6.045 0.012 1

Gl 406 10:56:28.91 +07:00:53.1 7.060 6.440 6.080 b 7.144 0.028 6.495 0.041 6.131 0.015 1

HD 101452 11:40:13.65 -39:08:47.6 7.005 6.885 6.845 a+ 7.002 0.026 6.911 0.049 6.829 0.022 1

HD 105601 12:09:27.81 +38:37:54.5 6.810 6.715 6.685 c 6.773 0.017 6.709 0.015 6.654 0.018 1

HD 106965 12:17:57.55 +01:34:31.0 7.375 7.335 7.315 a+ 7.313 0.021 7.360 0.016 7.303 0.010 2

HD 129653 14:42:39.55 +36:45:24.3 6.980 6.940 6.920 b 6.939 0.016 6.940 0.018 6.907 0.017 1

HD 129655 14:43:46.44 -02:30:19.8 6.815 6.720 6.690 a 6.764 0.017 6.707 0.027 6.657 0.014 2

HD 130163 14:47:46.95 -39:55:35.1 6.855 6.845 6.835 a+ 6.833 0.015 6.910 0.045 6.808 0.019 1

HD 136754 15:21:34.53 +24:20:36.2 7.150 7.130 7.135 b 7.077 0.015 7.151 0.015 7.096 0.010 2

S-R 3 16:26:09.32 -24:34:12.0 7.705 6.965 6.520 c 7.758 0.013 6.975 0.036 6.497 0.012 2

Oph S1 16:26:34.18 -24:23:28.1 8.800 7.270 6.330 c 8.856 0.012 7.284 0.025 6.318 0.013 2

HD 161743 17:48:57.93 -38:07:07.4 7.620 7.620 7.615 a+ 7.610 0.022 7.655 0.021 7.604 0.030 1

HD 161903 17:48:19.23 -01:48:29.6 7.170 7.055 7.020 a 7.093 0.018 7.065 0.030 6.990 0.013 2

HD 162208 17:47:58.56 +39:58:50.7 7.215 7.145 7.110 b 7.155 0.011 7.130 0.030 7.085 0.013 1

Gl 748 19:12:14.55 +02:53:11.2 7.075 6.545 6.305 c 7.078 0.016 6.581 0.017 6.284 0.022 1

Gl 811.1 20:56:46.59 -10:26:53.4 7.755 7.150 6.930 c 7.796 0.022 7.143 0.038 6.888 0.011 1

HD 201941 21:12:45.32 +02:38:34.0 6.700 6.640 6.625 a 6.679 0.021 6.672 0.045 6.593 0.016 1

HD 203856 21:23:35.52 +40:01:07.0 6.925 6.880 6.860 b 6.908 0.017 6.866 0.010 6.835 0.012 1

HD 205772 21:38:41.47 -41:02:52.1 7.765 7.685 7.655 a+ 7.760 0.027 7.694 0.038 7.597 0.012 1

Table 5: Primary CIT Standards
Name	Coordinates (J2000)	CIT Photometry	2MASS Photometry
	RA	Dec	J	H	K	Quality	J	EJ	H	EH	K_s	EK_s	N
HD 225023	00:02:46.02	+35:48:55.6	7.065	6.985	6.960	c	7.022	0.010	6.944	0.015	6.933	0.010	2
G 158-27	00:06:43.26	-07:32:14.4	8.305	7.755	7.430	c	8.351	0.012	7.786	0.034	7.448	0.015	1
HD 2811	00:31:18.50	-43:36:23.0	7.170	7.090	7.065	a+	7.149	0.012	7.132	0.020	7.060	0.014	2
HD 3029	00:33:39.54	+20:26:01.7	7.250	7.120	7.090	c	7.196	0.035	7.086	0.024	7.043	0.019	1
HD 18881	03:03:31.95	+38:24:36.0	7.125	7.130	7.140	c	7.113	0.024	7.133	0.014	7.119	0.014	2
HD 19904	03:10:42.81	-39:03:05.5	6.720	6.660	6.640	a+	6.683	0.013	6.677	0.015	6.596	0.011	2
HD 22686	03:38:55.09	+02:45:48.7	7.195	7.190	7.185	a	7.171	0.014	7.183	0.053	7.145	0.018	1
HD 38921	05:47:22.20	-38:13:51.3	7.570	7.550	7.535	a+	7.523	0.021	7.603	0.035	7.502	0.015	1
HD 40335	05:58:13.54	+01:51:23.0	6.540	6.470	6.450	a	6.548	0.026	6.463	0.036	6.438	0.011	1
HD 44612	06:24:46.60	+43:32:54.4	7.060	7.035	7.040	c	7.056	0.028	7.043	0.012	7.044	0.016	1
HD 75223	08:47:21.99	-39:47:59.2	7.325	7.295	7.280	a+	7.291	0.025	7.332	0.038	7.287	0.042	1
HD 77281	09:01:38.01	-01:28:34.7	7.105	7.050	7.030	a+	7.041	0.011	7.028	0.011	7.002	0.013	3
Gl 347a	09:28:53.35	-07:22:14.8	8.410	7.860	7.630	b	8.482	0.018	7.899	0.031	7.627	0.017	1
HD 84800	09:48:44.65	+43:39:55.6	7.560	7.530	7.530	c	7.542	0.025	7.517	0.024	7.481	0.023	1
Gl 390	10:25:10.89	-10:13:43.5	6.870	6.250	6.045	a	6.874	0.013	6.263	0.031	6.045	0.012	1
Gl 406	10:56:28.91	+07:00:53.1	7.060	6.440	6.080	b	7.144	0.028	6.495	0.041	6.131	0.015	1
HD 101452	11:40:13.65	-39:08:47.6	7.005	6.885	6.845	a+	7.002	0.026	6.911	0.049	6.829	0.022	1
HD 105601	12:09:27.81	+38:37:54.5	6.810	6.715	6.685	c	6.773	0.017	6.709	0.015	6.654	0.018	1
HD 106965	12:17:57.55	+01:34:31.0	7.375	7.335	7.315	a+	7.313	0.021	7.360	0.016	7.303	0.010	2
HD 129653	14:42:39.55	+36:45:24.3	6.980	6.940	6.920	b	6.939	0.016	6.940	0.018	6.907	0.017	1
HD 129655	14:43:46.44	-02:30:19.8	6.815	6.720	6.690	a	6.764	0.017	6.707	0.027	6.657	0.014	2
HD 130163	14:47:46.95	-39:55:35.1	6.855	6.845	6.835	a+	6.833	0.015	6.910	0.045	6.808	0.019	1
HD 136754	15:21:34.53	+24:20:36.2	7.150	7.130	7.135	b	7.077	0.015	7.151	0.015	7.096	0.010	2
S-R 3	16:26:09.32	-24:34:12.0	7.705	6.965	6.520	c	7.758	0.013	6.975	0.036	6.497	0.012	2
Oph S1	16:26:34.18	-24:23:28.1	8.800	7.270	6.330	c	8.856	0.012	7.284	0.025	6.318	0.013	2
HD 161743	17:48:57.93	-38:07:07.4	7.620	7.620	7.615	a+	7.610	0.022	7.655	0.021	7.604	0.030	1
HD 161903	17:48:19.23	-01:48:29.6	7.170	7.055	7.020	a	7.093	0.018	7.065	0.030	6.990	0.013	2
HD 162208	17:47:58.56	+39:58:50.7	7.215	7.145	7.110	b	7.155	0.011	7.130	0.030	7.085	0.013	1
Gl 748	19:12:14.55	+02:53:11.2	7.075	6.545	6.305	c	7.078	0.016	6.581	0.017	6.284	0.022	1
Gl 811.1	20:56:46.59	-10:26:53.4	7.755	7.150	6.930	c	7.796	0.022	7.143	0.038	6.888	0.011	1
HD 201941	21:12:45.32	+02:38:34.0	6.700	6.640	6.625	a	6.679	0.021	6.672	0.045	6.593	0.016	1
HD 203856	21:23:35.52	+40:01:07.0	6.925	6.880	6.860	b	6.908	0.017	6.866	0.010	6.835	0.012	1
HD 205772	21:38:41.47	-41:02:52.1	7.765	7.685	7.655	a+	7.760	0.027	7.694	0.038	7.597	0.012	1

Return to Section VI.3.