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Field photometry for 3C 390.3 from the AAVSO Variable Star Database

Data includes all comparison stars within 0.125° of RA: 18:42:08.98 [280.53741667°] & Dec: 79:46:17.2 [79.77144444°]

Report this sequence as X36444JV in the chart field of your observation report.

AUID RA Dec Label V B-V Comments
000-BKF-448 18:43:05.10 [280.77124023°] 79:42:20.8 [79.70578003°] 136 13.611 (0.009)19 0.791 (0.022) Doroshenko 2005
000-BKF-449 18:43:22.00 [280.8416748°] 79:45:05.5 [79.75152588°] 142 14.200 (0.009)19 0.639 (0.022) Doroshenko 2005
000-BKF-450 18:42:51.30 [280.71374512°] 79:41:34.8 [79.69300079°] 147 14.663 (0.009)19 0.515 (0.022) Doroshenko 2005
000-BKF-451 18:41:35.30 [280.39709473°] 79:42:02.6 [79.70072174°] 151 15.126 (0.009)19 0.782 (0.022) Doroshenko 2005
000-BKD-791 18:43:56.92 [280.98718262°] 79:41:09.1 [79.68586731°] 157 15.675 (0.011)21 0.636 (0.042)
000-BKD-789 18:41:23.07 [280.34613037°] 79:44:21.3 [79.73925018°] 160 16.000 (0.009)19 0.648 (0.022) Doroshenko 2005
000-BKD-793 18:40:57.33 [280.2388916°] 79:44:32.3 [79.74230194°] 170 16.968 (0.011)21 0.670 (0.042)
000-BKD-792 18:40:36.68 [280.15283203°] 79:43:41.1 [79.72807312°] 171 17.129 (0.012)21 0.675 (0.045)
  • AUID is the AAVSO Unique Identifier for the star. When reporting a problem, please include this AUID.
  • Coordinates are in J2000 sexagesimal format, followed by decimal degrees
  • Search for variable stars in this field via VSX
  • Label is that star's label when plotted on an AAVSO chart, usually (but not always) its V magnitude rounded to the nearest tenth.

Source Reference Table

Footnote Source Footnote Source Footnote Source
1 Tycho-2 17 ASAS 33 SRO50
2 GSC 1.2 18 SRO 34 K35
3 GSC 2.2 19 NA 35 Landolt2007
4 USNO A2.0 20 GCPD 36 Landolt2009
5 USNO B1.0 21 SDSS 37 BSM_S
6 GCVS 4.2 22 BSC 38 UCAC3
7 UCAC2 23 LONEOS 39 UCAC4
8 2MASS 24 WBVR 40 BSM-Hamren
9 AAVSO Charts 25 DENIS 41 BSM_Berry
10 CCD Henden 26 CMC14 42 TMO61
11 Downes 27 RRLyr 43 VSX
12 Hipparcos 28 BSM_NM 44 COKER30
13 HD 29 APASS 45 BSM_HQ
14 NSV 30 W28 46 Pan-STARRS
15 ACP 0.9 31 W30 47 Landolt2013
16 TASS 32 OC61 48 GAIA DR2