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Name
  CM Lac  
AAVSO UID
000-BCP-758 (7276 observations)  
Constellation
Lacerta Sequence
J2000.0
22 00 04.45 +44 33 07.7  (330.01854 +44.55214) Search nearby
B1950.0 21 58 03.63 +44 18 41.6
Proper motion
RA: 17.226 +/- 0.043 mas/yDec: 2.999 +/- 0.045 mas/ySource: Gaia DR1
Galactic coord. 93.609 -8.345
Other names

(Internal only)
2MASS J22000443+4433078 AAVSO 2156+44 AN 397.1931
BD+43 4106 GSC 03210-00905 HD 209147
HIP 108606 PPM 62327 Renson 58170
SAO 51531 TYC 3210-905-1  
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Variability type
EA/DM
Spectral type A2mA4+A8V
Mag. range
8.18 - 9.15 V
Discoverer --
Epoch
14 Nov 1932 (HJD 2427026.316) Ephemeris
Outburst --
Period 1.604691434 d
Rise/eclipse dur. 11%  (4.23639 h)
Remarks
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1 GCVS Team Min II 8.53; DII = 0.12P.
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References
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1 C. Lloyd, 2018, Summer Eclipsing Binaries BAA-VSS Circular #176, 2018
2 Bob Nelson's O-C files, 2016 --
3 Eker, Z.; et al., 2014, The Catalogue of Stellar Parameters from the
Detached Double-Lined Eclipsing Binaries in the Milky Way
2014PASA...31...24E
4 Smalley, B.; et al., 2014, Eclipsing Am binary systems in the SuperWASP
survey
2014A&A...564A..69S
5 B.N.Kadomski, Ehngel'gard Bull. N25, 1947. --
6 F.W.Wright, HA 89, N10, 1937. 1932AnHar..89..171W
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 = 7.84H = 7.83K = 7.77J - K = 0.07
AllWISE W1 = 7.78W2 = 7.83W3 = 7.83W4 = 7.83W1 - W2 = -0.05W3 - W4 = -0.01
APASS-DR9
SDSS-DR12 u = 9.59g = 11.40r = 8.59i = 8.57z = 9.01u - g = -1.81r - i = 0.01
Images
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2018-06-04 19:53 UTC Period from BAA-VSS Circular #176.
3 Bernhard, Klaus 2016-02-04 20:02 UTC Spectral type from 2014A&A...564A..69S and 2014PASA...31...24E.
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.