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Latest Details
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Name
  V0640 Her  
AAVSO UID
000-BCW-032 (32 observations)  
Constellation
Hercules Sequence
J2000.0
17 25 54.37 +16 55 03.3  (261.47654 +16.91758) Search nearby
B1950.0 17 23 40.81 +16 57 35.8
Proper motion
RA: -14.46 +/- 0.47 mas/yDec: 16.50 +/- 0.54 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 39.332 +26.304
Other names

(Internal only)
AAVSO 1721+17 ASASSN-V J172554.42+165504.8 BD+17 3241
HD 157967 HIP 85302 HR 6495
IRC +20323 RAFGL 1967 SAO 102819
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Variability type
SR
Spectral type M4III
Mag. range
5.98 - 6.21 V
Discoverer --
Epoch
05 Sep 1991 (HJD 2448504.942) Ephemeris
Outburst --
Period 29.397 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team VB A (B 14.9m, 8.5", 217deg; C 13.9m, 23", 221deg).
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References
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1 The Hipparcos and Tycho Catalogues, Variability Annex: Periodic variables,
1997
1997HIP...C......0E
2 O.J.Eggen, ApJ Suppl 14, N131, 307, 1967. 1967ApJS...14..307E
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 = 1.82H = 0.89K = 0.74J - K = 1.09
AllWISE W3 = 0.41W4 = 0.29W3 - W4 = 0.12
GALEX-DR5 FUV = 19.01NUV = 16.20FUV - NUV = 2.81
Images
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Supporting Documents
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Revision History
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3 Admin, VSX 2012-03-15 03:48 UTC Update from [1997HIP...C......0E].
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.