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Latest Details
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Name
  DU Lac  
AAVSO UID
000-BCW-181 (2 observations)  
Constellation
Lacerta Sequence
J2000.0
22 45 02.61 +52 58 28.0  (341.26087 +52.97444) Search nearby
B1950.0 22 42 57.60 +52 42 40.2
Proper motion
RA: -2.7 +/- 4.1 mas/yDec: 1.9 +/- 3.8 mas/ySource: UCAC4
Galactic coord. 104.458 -5.303
Other names

(Internal only)
AAVSO 2240+52 AN 201.1940 ASASSN-V J224502.67+525827.8
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Variability type
M
Spectral type M2
Mag. range
15.1 - <17.0 p
Discoverer --
Epoch
21 Sep 1936 (HJD 2428433) Ephemeris
Outburst --
Period 269.9 d
Rise/eclipse dur. --
Remarks
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 H.Huth, VSS 4, N2, 1957. --
2 MVS N329, 1957. --
3 Catalogue of Stellar Spectral Classifications (Skiff, 2005) 1956ApJ...124..346C
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 = 8.50H = 7.55K = 7.10J - K = 1.40
AllWISE W1 = 6.73W2 = 6.57W3 = 6.14W4 = 5.88W1 - W2 = 0.17W3 - W4 = 0.25
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 22 45 02.61 +52 58 28.0 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Stellar Association Membership
 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 2007-04-04 09:53 UTC Position and spectral type from Brian Skiff's MKTypes.dat [http://vizier.u-strasbg.fr/viz-bin/Cat?III/233B].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.

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