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Name
  OT Lac  
AAVSO UID
000-BDC-588 (180 observations)  
Constellation
Lacerta Sequence
J2000.0
22 36 44.73 +56 44 07.3  (339.18637 +56.73536) Search nearby
B1950.0 22 34 47.45 +56 28 32.1
Proper motion
RA: -4.433 +/- 1.678 mas/yDec: -1.824 +/- 0.846 mas/ySource: Gaia DR1
Galactic coord. 105.221 -1.432
Other names

(Internal only)
2MASS J22364473+5644073 AAVSO 2232+56C ALS 12517
ASASSN-V J223644.83+564407.5 GSC 03991-02201 LS III +56 79
NSVS 3455950 TYC 3991-2201-1 VV 419
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Variability type
EA
Spectral type B5
Mag. range
11.33 - 11.68 V
Discoverer --
Epoch
27 Sep 2014 (HJD 2456928.0492) Ephemeris
Outburst --
Period 5.14992 d
Rise/eclipse dur. 12%  (14.8 h)
Remarks
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1 Kasai, Kiyoshi Eccentric system. Data for 1949-1954 published in Ricerche Astronomiche. Vol. 8, N. 12 indicate apsidal motion. Min II= 11.61V.
2 Otero, Sebastian Alberto Likely eccentric system with Min II at phase ~0.45.
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References
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1 H. Maehara, 2014, Kiso/Kyoto Wide-field Survey (KWS) --
2 Wozniak, P.R., et al., 2004, Northern Sky Variability Survey: Public Data
Release		 2004AJ....127.2436W
3 W.J.Miller, A.A.Wachmann, RIC Astr 8, N12, 1971. 1971RA......8..211M
External Links
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Location    Go   
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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 = 10.28H = 10.18K = 10.11J - K = 0.17
AllWISE W1 = 10.04W2 = 10.09W3 = 9.96W1 - W2 = -0.04
APASS-DR9 B = 11.80V = 11.39g' = 11.53r' = 11.27i' = 11.13B - V = 0.41
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 22 36 44.73 +56 44 07.3 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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2 OT Lac, phase plot Kasai, Kiyoshi 2014-11-11 03:12 UTC phase plot with data from Ric.A.(Ricerche Astronomiche, photo mag. mag.offset = 0.0), NSVS(mag.offset = -0.29), KWS(Kamogata/Kiso/Kyoto Wide-field Survey, mag.offset = -0.06), APASS(mag.offset = 0.0), and observations by Hirosawa and Kasai (mag.offset = 0.0)
1 Phase plot Otero, Sebastian Alberto 2014-09-18 22:03 UTC Phase plot with NSVS and APASS data.
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Revision History
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4 Kasai, Kiyoshi 2014-11-11 03:12 UTC Period from NSVS, KWS and APASS observations.
3 Otero, Sebastian Alberto 2014-09-18 22:03 UTC Type, period, epoch and range from APASS and NSVS data. 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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