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Name
  CP Lac  
AAVSO UID
000-BCQ-233 (10229 observations)  
Constellation
Lacerta Sequence
J2000.0
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 2RXP J221541.3+553701 AAVSO 2212+55
AN 605.1936 ATO J333.9212+55.6170 CSI+55-22138
Downes CP Lac GSC2.3 N1AT007837 Gaia19elx
IPHAS J221541.08+553701.3 N Lac 1936 NPM2 +55.1878
Nova Lac 1936 Nova Lacertae 1936 UCAC4 729-081693
UGPS J221541.09+553701.3 USNO-A2.0 1425-13093144 USNO-B1.0 1456-0394319
WEB 19732 ZTF18abcjzao  
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Variability type
NA/VY
Spectral type pec(NOVA)
Mag. range
2.1 V - 20.4 CV
Discoverer Kazuaki Gomi (during the 1936 June 18 total solar eclipse)
Epoch
20 Jun 1936 (HJD 2428340.00000) Ephemeris
Outburst 1936
Period 0.145143 d  (3.4834 h)
Rise/eclipse dur. --
Remarks
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1 Schmeer, Patrick Previous VY Scl-like fading July–December 2010 (AAVSO data, vsnet-alert 23621).
2 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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References
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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
[astro-ph.SR]
2010arXiv1004.3698S
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 Rodríguez-Gil, P.; Torres, M. A. P., 2005, Time-resolved photometry of the
nova remnants DM Gem, CP Lac, GI Mon, V400 Per, CT Ser and XX Tau
2005A&A...431..289R
7 D.W. Hoard, The Big List of SW Sextantis Stars 2003AJ....126.2473H
8 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
9 Howarth, I. D., 1978, CP Lacertae (Nova 1936) 1978JBAA...88..608H
10 P.P.Parenago, Perem. Zvezdy 7, N3, 109, 1949. 1949PZ......7..109P
External Links
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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
Images
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Supporting Documents
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Campaigns/Programs
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Revision History
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7 Schmeer, Patrick 2019-10-12 06:56 UTC Maximum magnitude from 1978JBAA...88..608H. Minimum magnitude from AAVSO data. Discoverer's given name and discovery circumstances added from 2005A&A...431..289R.
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.