AAVSO: American Association of Variable Star Observers

Variable Star Plotter

Field photometry for CHI CYG from the AAVSO Variable Star Database

Data includes all comparison stars within 0.25° of RA: 19:50:33.92 [297.64133333°] & Dec: 32:54:50.6 [32.91405556°]

Report this sequence as X18613FD in the chart field of your observation report.

AUID RA Dec Label V B-V Comments
000-BCJ-320 19:51:29.14 [297.87142944°] 33:06:00.2 [33.10005569°] 88 8.829 (0.039)28 0.358 (0.068) BINO_COMP
000-BLH-732 19:50:08.16 [297.53399658°] 33:08:04.8 [33.13466644°] 93 9.282 (0.016)28 0.141 (0.023)
000-BCJ-142 19:49:40.96 [297.4206543°] 32:53:25.4 [32.89038849°] 97 9.722 (0.064)28 1.006 (0.117)
000-BLH-733 19:49:31.25 [297.38021851°] 33:08:22.8 [33.13966751°] 100 9.965 (0.044)28 0.079 (0.070)
000-BCJ-170 19:50:09.13 [297.53805542°] 32:58:25.0 [32.97360992°] 103 10.260 (0.032)28 1.577 (0.064)
000-BCJ-265 19:50:57.67 [297.74029541°] 32:52:47.8 [32.87994385°] 106 10.608 (0.024)28 1.337 (0.051)
000-BLH-734 19:51:25.46 [297.8560791°] 32:59:16.7 [32.98797226°] 113 11.322 (0.097)28 0.640 (0.149)
000-BLH-735 19:50:25.26 [297.60525513°] 33:00:14.1 [33.00391769°] 118 11.803 (0.058)28 0.914 (0.124)
000-BLH-736 19:51:13.09 [297.80453491°] 33:06:50.1 [33.1139183°] 122 12.182 (0.011)29 0.658 (0.019)
000-BLH-737 19:51:12.75 [297.8031311°] 32:54:24.6 [32.90683365°] 124 12.405 (0.017)29 0.830 (0.030)
000-BLH-738 19:51:05.33 [297.7722168°] 32:43:11.5 [32.71986008°] 130 13.021 (0.023)29 0.570 (0.040)
000-BLH-739 19:51:07.07 [297.77944946°] 33:03:15.9 [33.05441666°] 133 13.347 (0.031)29 1.638 (0.058)
000-BLH-740 19:51:08.27 [297.78445435°] 32:54:27.0 [32.90750122°] 140 13.979 (0.035)29 0.666 (0.063)
000-BLH-741 19:51:06.76 [297.77816772°] 32:45:26.9 [32.75747299°] 144 14.399 (0.028)29 0.756 (0.054)
  • 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