AAVSO: American Association of Variable Star Observers

Variable Star Plotter

Field photometry for U Leo from the AAVSO Variable Star Database

Data includes all comparison stars within 0.154166666667° of RA: 10:24:03.86 [156.01608333°] & Dec: 14:00:25.2 [14.007°]

Report this sequence as X25527ADZ in the chart field of your observation report.

AUID RA Dec Label V B-V Comments
000-BKB-364 10:23:45.92 [155.94132996°] 13:53:10.9 [13.88636112°] 113 11.265 (0.054)18 0.505 (0.097)
000-BKB-366 10:23:42.29 [155.9262085°] 14:04:26.0 [14.07388878°] 123 12.288 (0.015)18 0.672 (0.023)
000-BKB-367 10:24:20.78 [156.08657837°] 13:58:44.6 [13.9790554°] 129 12.901 (0.009)18 0.939 (0.015)
000-BKB-369 10:24:29.31 [156.12213135°] 14:01:26.1 [14.02391624°] 138 13.788 (0.021)18 0.601 (0.032)
000-BKB-370 10:23:49.77 [155.9573822°] 14:02:00.5 [14.03347206°] 142 14.197 (0.026)18 0.763 (0.070)
000-BKB-372 10:24:22.86 [156.09524536°] 14:07:01.0 [14.11694431°] 150 15.004 (0.020)18 0.875 (0.032)
000-BKB-373 10:23:38.00 [155.90834045°] 14:09:35.6 [14.15988922°] 154 15.423 (0.054)18 0.838 (0.093)
000-BKB-374 10:23:33.51 [155.88961792°] 14:09:18.0 [14.15499973°] 161 16.143 (0.053)18 0.997 (0.083)
  • 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