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Field photometry for ASASSN-16ma from the AAVSO Variable Star Database

Data includes all comparison stars within 5.0° of RA: 18:20:52.25 [275.21770833°] & Dec: -28:22:12.1 [-28.37002778°]

Report this sequence as X36453CI in the chart field of your observation report.

AUID RA Dec Label V B-V Comments
000-BCB-233 18:05:48.49 [271.45205688°] -30:25:26.8 [-30.42411041°] 30 2.990 (0.100)22 1.000 (0.173) BINO_COMP, visual use only, NSV 10173
000-BCB-410 18:08:04.98 [272.02075195°] -28:27:25.5 [-28.45708275°] 46 4.570 (0.100)22 0.940 (0.173) BINO_COMP
000-BCC-697 18:33:57.77 [278.49072266°] -33:00:59.6 [-33.01655579°] 53 5.280 (0.100)22 -0.110 (0.173) BINO_COMP, NSV24494, visual use only
000-BCC-289 18:25:01.43 [276.25595093°] -30:45:23.7 [-30.75658417°] 56 5.600 (0.100)22 1.140 (0.173) BINO_COMP
000-BCC-379 18:27:49.48 [276.95617676°] -29:49:00.7 [-29.8168602°] 59 5.920 (0.100)22 0.520 (0.200) BINO_COMP
000-BCB-063 18:03:52.44 [270.96850586°] -24:21:38.6 [-24.36072159°] 60 5.970 (0.100)22 0.000 (0.173) BINO_COMP
000-BCC-142 18:22:00.14 [275.50057983°] -28:25:47.9 [-28.42997169°] 62 6.160 (0.100)22 0.260 (0.173) BINO_COMP
000-BCB-862 18:17:23.75 [274.34896851°] -28:17:20.3 [-28.28897285°] 64 6.400 (0.100)22 0.540 (0.173) BINO_COMP
000-BCB-840 18:16:57.49 [274.23953247°] -27:42:57.2 [-27.71588898°] 67 6.664 (0.032)12 1.255 (0.058) BINO_COMP
000-BLP-685 18:37:03.28 [279.26367188°] -28:30:47.0 [-28.5130558°] 68 6.782 (0.032)1 0.964 (0.058) BINO_COMP
000-BCB-199 18:05:10.55 [271.29394531°] -24:23:54.8 [-24.39855576°] 69 6.867 (0.032)1 0.052 (0.057) BINO_COMP
000-BCC-457 18:29:11.93 [277.29971313°] -29:15:34.3 [-29.25952721°] 69 6.888 (0.032)1 0.451 (0.057) BINO_COMP
000-BCB-185 18:04:48.49 [271.20205688°] -25:36:20.5 [-25.60569382°] 72 7.194 (0.032)1 0.508 (0.058) BINO_COMP
000-BCC-040 18:20:21.16 [275.08816528°] -27:24:27.7 [-27.40769386°] 72 7.248 (0.013)12 1.371 (0.028) BINO_COMP
000-BCC-048 18:20:25.37 [275.10571289°] -29:03:59.4 [-29.06649971°] 74 7.409 (0.032)1 0.953 (0.059) BINO_COMP
000-BCB-473 18:09:15.07 [272.31280518°] -26:07:00.4 [-26.11677742°] 77 7.676 (0.032)1 0.637 (0.059) BINO_COMP
000-BLP-686 18:37:17.21 [279.32171631°] -29:28:27.5 [-29.47430611°] 77 7.713 (0.032)1 0.454 (0.058) BINO_COMP
000-BKN-919 18:16:23.15 [274.09646606°] -27:24:48.1 [-27.4133606°] 78 7.791 (0.010)20 0.280 (0.052) BINO_COMP. B-V from Tycho-2
  • 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