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Name
  TU Lac  
AAVSO UID
000-BCW-165 (750 observations)  
Constellation
Lacerta Sequence
J2000.0
22 54 56.69 +36 51 42.1  (343.73621 +36.86170) Search nearby
B1950.0 22 52 37.18 +36 35 41.6
Proper motion
RA: -2.4 +/- 2.2 mas/yDec: -3.8 +/- 5.8 mas/ySource: UCAC4
Galactic coord. 98.385 -20.396
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J22545669+3651420 AAVSO 2250+36 AN 23.1923
GSC 02761-01279 IRAS 22526+3635 NSVS 6134234
NSVS 8998289 NSVS J2254568+365138 SVS 34
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Variability type
M
Spectral type M
Mag. range
10.3 - 17.9 V
Discoverer Innokentiy Andreevich Balanovsky
Epoch
15 Jun 1999 (HJD 2451345.0) Ephemeris
Outburst --
Period 278.6 d
Rise/eclipse dur. 49%  (137 d)
Remarks
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1 2016JAVSO..44..156K B-V= 1.69; V-R= 2.55
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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 Karlsson, T.; Bengtsson, H.; Wikander, T.; et al., 2016, 50 forgotten Miras 2016JAVSO..44..156K
3 Henden, A. A., et al., 2012, Data Release 3 of the AAVSO All-Sky
Photometric Survey (APASS)
2012JAVSO..40..430H
4 Williams S.J., Wozniak P.R., Vestrand W.T., Gupta V., 2004, Unspecified
slow variables
--
5 V.P.Zessewitsch, M.S.Kazanasmas, Atlas of Finding Charts for Variable
Stars, M., 1971.
1971afcv.book.....T
6 E.Zinner, AN 267, 61, 1938. 1939AN....267...61Z
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 = 5.32H = 4.67K = 4.09J - K = 1.23
AllWISE W1 = 4.29W2 = 3.87W3 = 3.77W4 = 3.32W1 - W2 = 0.43W3 - W4 = 0.45
APASS-DR9 B = 15.77V = 13.87g' = 14.89r' = 12.56B - V = 1.91
Images
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Supporting Documents
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1 Phase plot Otero, Sebastian Alberto 2014-04-14 17:39 UTC Phase plot with AAVSO, NSVS and APASS data.
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Revision History
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6 Otero, Sebastian Alberto 2020-05-14 20:53 UTC Gaia DR2 position.
5 Karlsson, Thomas 2017-03-10 22:16 UTC Elements, minimum magnitude, B-V and V-R from 2016JAVSO..44..156K. Discoverer from AN, 220, 47, 1923
4 Otero, Sebastian Alberto 2014-04-14 17:39 UTC Period and epoch from AAVSO, NSVS and APASS data.
3 Otero, Sebastian Alberto 2014-04-14 16:38 UTC Primary record creation. Period, epoch and range from AAVSO V data. UCAC4 position.
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.