AAVSO: American Association of Variable Star Observers

Variable Star Plotter

Field photometry for BC UMa from the AAVSO Variable Star Database

Data includes all comparison stars within 0.154166666667° of RA: 11:52:15.83 [178.06595833°] & Dec: 49:14:42.0 [49.245°]

Report this sequence as X25151JK in the chart field of your observation report.

AUID RA Dec Label V B-V Comments
000-BBS-483 11:52:54.18 [178.22575378°] 49:23:45.4 [49.39594269°] 96 9.602 (0.033)16 1.392 (0.071)
000-BBS-468 11:52:06.53 [178.02720642°] 49:12:15.7 [49.20436096°] 127 12.748 (0.069)10 0.601 (0.107)
000-BBS-476 11:52:36.37 [178.15153503°] 49:15:01.7 [49.25047302°] 129 12.923 (0.049)10 0.660 (0.075)
000-BBS-464 11:52:00.99 [178.00411987°] 49:15:04.9 [49.25136185°] 131 13.115 (0.023)10 0.571 (0.036)
000-BBS-463 11:51:56.90 [177.98707581°] 49:16:48.2 [49.280056°] 138 13.838 (0.013)10 0.659 (0.021)
000-BBS-477 11:52:37.85 [178.15771484°] 49:19:00.3 [49.31674957°] 140 14.043 (0.015)10 0.922 (0.023)
000-BBS-471 11:52:11.87 [178.04945374°] 49:19:09.9 [49.31941605°] 142 14.204 (0.015)10 0.621 (0.026)
000-BLK-258 11:52:04.73 [178.01971436°] 49:06:34.5 [49.10958481°] 146 14.631 (0.048)29 0.792 (0.089)
000-BLK-259 11:52:41.99 [178.17495728°] 49:19:04.4 [49.31789017°] 149 14.932 (0.049)29 0.708 (0.106)
000-BBS-474 11:52:21.70 [178.09042358°] 49:11:17.4 [49.18816757°] 154 15.402 (0.014)10 0.819 (0.028)
000-BBS-460 11:51:52.98 [177.9707489°] 49:13:10.2 [49.2195015°] 155 15.468 (0.016)10 0.723 (0.024)
000-BBS-480 11:52:42.25 [178.17604065°] 49:20:11.8 [49.3366127°] 160 16.029 (0.016)10 0.544 (0.041)
000-BBS-462 11:51:55.62 [177.98175049°] 49:17:43.1 [49.29530334°] 165 16.505 (0.045)10 0.759 (0.073)
000-BBS-467 11:52:06.37 [178.02653503°] 49:17:37.0 [49.29360962°] 169 16.905 (0.018)10 1.628 (0.052)
000-BBS-475 11:52:24.53 [178.10220337°] 49:14:06.0 [49.23500061°] 171 17.073 (0.022)10 0.516 (0.067)
000-BBS-466 11:52:04.33 [178.01803589°] 49:15:29.8 [49.25827789°] 175 17.516 (0.063)10 0.952 (0.100)
000-BBS-470 11:52:10.34 [178.04307556°] 49:12:57.2 [49.21588898°] 178 17.804 (0.037)10 0.622 (0.075)
000-BBS-472 11:52:13.38 [178.05575562°] 49:15:19.7 [49.25547028°] 184 18.420 (0.182)10 0.628 (0.300)
  • 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