AAVSO: American Association of Variable Star Observers

Variable Star Plotter

Field photometry for CH UMa from the AAVSO Variable Star Database

Data includes all comparison stars within 0.154166666667° of RA: 10:07:00.72 [151.753°] & Dec: 67:32:47.5 [67.54652778°]

Report this sequence as X25151LM in the chart field of your observation report.

AUID RA Dec Label V B-V Comments
000-BBR-146 10:05:40.56 [151.41900635°] 67:35:33.3 [67.5925827°] 88 8.756 (0.033)1 1.488 (0.066)
000-BBR-204 10:08:15.85 [152.06604004°] 67:38:59.0 [67.64971924°] 121 12.108 (0.005)10 0.487 (0.023)
000-BBR-152 10:06:06.93 [151.52886963°] 67:29:27.0 [67.49082947°] 128 12.782 (—)10 0.631 (0.013)
000-BBR-200 10:08:09.47 [152.03945923°] 67:35:49.8 [67.59716797°] 128 12.847 (0.005)10 0.965 (0.021)
000-BBR-202 10:08:14.55 [152.06062317°] 67:38:08.7 [67.63574982°] 133 13.297 (—)10 0.499 (0.019)
000-BBR-178 10:07:01.56 [151.75650024°] 67:27:30.4 [67.45844269°] 142 14.180 (0.005)10 0.755 (0.019)
000-BBR-192 10:07:39.17 [151.91320801°] 67:29:01.8 [67.48383331°] 143 14.325 (0.011)10 0.709 (0.021)
000-BBR-174 10:06:53.61 [151.72337341°] 67:39:27.8 [67.65772247°] 148 14.828 (0.010)10 0.877 (0.024)
000-BBR-170 10:06:43.38 [151.68075562°] 67:38:35.8 [67.64328003°] 150 14.973 (0.016)10 0.507 (0.043)
000-BBR-180 10:07:07.86 [151.78274536°] 67:31:21.3 [67.52258301°] 153 15.271 (0.015)10 0.622 (0.043)
000-BBR-177 10:07:01.22 [151.75508118°] 67:28:31.3 [67.47536469°] 157 15.658 (0.006)10 0.514 (0.017)
  • 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