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Name
  CR Lac  
AAVSO UID
000-BDS-518 (2919 observations)  
Constellation
Lacerta Sequence
J2000.0
22 41 55.57 +51 08 26.7  (340.48154 +51.14075) Search nearby
B1950.0 22 39 49.81 +50 52 43.8
Proper motion
RA: -6.3 +/- 4.8 mas/yDec: -5.0 +/- 3.1 mas/ySource: UCAC4
Galactic coord. 103.160 -6.691
Other names

(Internal only)
1SWASP J224155.70+510828.3 2MASS J22415556+5108266 AN 98.1927
ASASSN-V J224155.55+510826.3 GALEX J224155.6+510825 GALEX J224155.6+510827
GSC 03633-02012 NSVS 6068690 PPMX J224155.5+510826
SVS 108 UCAC4 706-106028 WISE J224155.57+510826.8
WISEA J224155.57+510826.7    
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Variability type
EA
Spectral type --
Mag. range
13.6 - 14.7 V
Discoverer Cuno Friedrich Ludwig Hoffmeister
Epoch
02 Dec 2016 (HJD 2457724.501) Ephemeris
Outburst --
Period 3.9498975 d
Rise/eclipse dur. 15%  (14.220 h)
Remarks
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1 Otero, Sebastian Alberto VSP Note: 15.9 mag. companion 8" to the NE.
2 Schmeer, Patrick EA with O'Connell effect (vsnet-chat 8165). Gaia DR2 parallax 0.1630 ± 0.0202 mas (distance 5.0 ± 0.5 kpc). ASAS-SN and APASS magnitudes contaminated by 2MASS J22415604+5108328 (V= 15.9; sep. 8"). ASAS-SN magnitudes partially contaminated by Gaia DR2 1989789220750166912 (V= 15.3: sep. 16") and 2MASS J22415588+5108090 (V= 14.3; sep. 18"). Range has been corrected.
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References
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1 Gaia Collaboration; et al., 2018, Gaia Data Release 2. Summary of the
contents and survey properties		 2018A&A...616A...1G
2 I. L. Andronov, 2018, vsnet-chat #8165 --
3 C.Hoffmeister, Sonn Mitt N12, 1928. 1928MiSon..12....1H
4 C.Hoffmeister, AN 232, 153-172, 1928. 1928AN....232..153H
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 = 12.42H = 12.08K = 12.00J - K = 0.42
AllWISE W1 = 11.77W2 = 11.82W3 = 12.34W1 - W2 = -0.05
APASS-DR9 B = 14.15V = 13.55g' = 13.92r' = 13.46i' = 13.37B - V = 0.59
Images
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Supporting Documents
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1 Phase plot by I. L. Andronov Schmeer, Patrick 2018-10-29 14:37 UTC Phase plot based on ASAS-SN Sky Patrol data (Ivan Leonidovich Andronov)
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Revision History
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5 Otero, Sebastian Alberto 2020-05-15 00:52 UTC Gaia DR2 position.
4 Schmeer, Patrick 2018-09-01 00:59 UTC Orbital period and epoch of primary eclipse from vsnet-chat 8165. Discoverer added from 1928AN....232..153H. Range and eclipse duration from ASAS-SN data.
3 Otero, Sebastian Alberto 2016-03-31 07:29 UTC Magnitude derived from UCAC3. UCAC4 position.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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