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Details for Revision 1
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Name
  TW Lac  
AAVSO UID
000-BDS-454 (2088 observations)  
Constellation
Lacerta Sequence
J2000.0
22 30 26.30 +54 37 06.0  (337.60958 +54.61833) Search nearby
B1950.0 22 28 28.61 +54 21 40.9
Galactic coord. 103.385 -2.812
Other names

(Internal only)
AN 123.1925 SVS 68  
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Variability type
EA/SD
Spectral type A2
Mag. range
11.5 - 13.3 V
Discoverer --
Epoch
02 Jul 1972 (HJD 2441500.534) Ephemeris
Outburst --
Period 3.037417 d
Rise/eclipse dur. 15%  (10.93 h)
Remarks
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1 GCVS Team d = 0.018P. P var. Min I = 2424387.332 + 3.0374936d*E (JD2424380 - 34000) [V.P.Zessewitsch, Perem. Zvezdy 11, N6, 403, 1958.]; Min I = 2434049.593 + 3.037520d*E (JD2434000 - 36560) [B.S.Whitney, AJ 64, 258, 1959.]; since JD2441500 - see Table.
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References
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1 Bob Nelson's O-C files, 2016 --
2 SAC N54, 1982. --
3 F.W.Wright, HA 89, N13, 1940. 1940AnHar..89...21W
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Supporting Documents
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Stellar Association Membership
 ASCC 121 Open Cluster 2012A&A...548A..97Z
 ASCC 123 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
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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