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  CP Lac  
000-BCQ-233 (10222 observations)  
Lacerta Sequence
22 15 41.10 +55 37 01.3  (333.92125 +55.61703) Search nearby
B1950.0 22 13 50.52 +55 22 03.2
Proper motion
RA: -11.1 +/- 5.5 mas/yDec: -7.6 +/- 5.2 mas/ySource: UCAC4
Galactic coord. 102.141 -0.837
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J22154108+5537014 AAVSO 2212+55 AN 605.1936
Downes CP Lac Gaia19elx  
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Variability type
Spectral type pec(NOVA)
Mag. range
2.0 V - <19.5 G
Discoverer K. Gomi
20 Jun 1936 (HJD 2428340.00000) Ephemeris
Outburst 1936
Period 0.145143 d  (3.4834 h)
Rise/eclipse dur. --
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1 Schmeer, Patrick Gaia DR2 parallax 0.8589 0.0420 mas (distance 1.13 0.05 kpc). VY Scl-like fading in 2019 (Gaia data).
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1 D. Denisenko, 2019, vsnet-alert #23621 --
2 Gaia Alerts, 2019 (online data) --
3 R.J. Strope, B.E. Schaefer, A.A. Henden, 2010, arXiv:1004.3698v1
4 Spectroscopy of Five Old Novae: New or Refined Orbital Periods 2006PASP..118..687P
5 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
6 D.W. Hoard, The Big List of SW Sextantis Stars 2003AJ....126.2473H
7 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
8 P.P.Parenago, Perem. Zvezdy 7, N3, 109, 1949. 1949PZ......7..109P
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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 = 15.03H = 14.73K = 14.81J - K = 0.21
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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 Legacy CVs
Revision History
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6 Schmeer, Patrick 2019-10-10 17:35 UTC Gaia DR2 position.
5 Otero, Sebastian Alberto 2011-05-25 05:23 UTC Primary record creation. Orbital period from reference. Minimum magnitude from AAVSO V-data. UCAC3 position.
4 Admin, VSX 2010-04-28 20:57 UTC Update from [2010arXiv1004.3698S].
3 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 15:52 UTC Discoverer added.
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.