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  V2330 Cyg  
000-BDQ-015 (379 observations)  
Cygnus Sequence
21 10 47.75 +34 20 06.5  (317.69896 +34.33514) Search nearby
B1950.0 21 08 44.77 +34 07 49.1
Proper motion
RA: 0.3 +/- 6.4 mas/yDec: -18.0 +/- 6.5 mas/ySource: UCAC4
Galactic coord. 79.548 -9.361
Other names

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HrmV_J211048+341955 LD 390 NSVS J2110475+342012
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Variability type
Spectral type Me
Mag. range
10.4 - 17.6 V
Discoverer Mike Collins
08 Sep 1999 (HJD 2451430.0) Ephemeris
Outburst --
Period 383.4 d
Rise/eclipse dur. 37%  (142 d)
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1 2016JAVSO..44..156K B-V= 1.32; V-R= 2.55
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1 Karlsson, T.; Bengtsson, H.; Wikander, T.; et al., 2016, 50 forgotten Miras 2016JAVSO..44..156K
2 P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004 2004AJ....128.2965W
3 L. Dahlmark, IBVS N5181, 2001. 2001IBVS.5181....1D
4 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 1987IBVS.3047....1R
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 6.43H = 5.53K = 4.95J - K = 1.48
APASS-DR9 B = 12.72V = 11.38g' = 11.77r' = 10.63B - V = 1.33
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Revision History
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4 Admin, VSX 2017-12-15 08:48 UTC Spectral type from Skiff (VizieR on-line data: B/mk)
3 Karlsson, Thomas 2017-03-10 22:34 UTC Elements, minimum magnitude, B-V and V-R from 2016JAVSO..44..156K. Discoverer from http://www.theastronomer.org/vstat00.txt
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.