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Field photometry for 3C 273 from the AAVSO Variable Star Database

Data includes all comparison stars within 0.125° of RA: 12:29:06.70 [187.27791667°] & Dec: 02:03:08.6 [2.05238889°]

Report this sequence as X36328LR in the chart field of your observation report.

AUID RA Dec Label V B-V Comments
000-BBS-864 12:29:22.22 [187.34259033°] 01:58:40.0 [1.97777784°] 102 10.226 (0.020)29 0.376 (0.043)
000-BBS-849 12:28:45.88 [187.19116211°] 02:02:14.7 [2.0374167°] 119 11.881 (0.018)29 1.000 (0.040)
000-BBS-860 12:29:08.39 [187.28495789°] 02:00:18.5 [2.00513887°] 127 12.707 (0.017)29 0.679 (0.038)
000-BBS-855 12:29:03.18 [187.26324463°] 02:03:18.5 [2.05513883°] 135 13.526 (0.019)29 0.621 (0.041)
  • 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