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Latest Details
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Name
  IQ Her  
AAVSO UID
000-BCW-007 (4837 observations)  
Constellation
Hercules Sequence
J2000.0
18 17 54.84 +17 58 52.7  (274.47850 +17.98131) Search nearby
B1950.0 18 15 42.68 +17 57 37.5
Proper motion
RA: 15.02 +/- 0.82 mas/yDec: 34.73 +/- 0.69 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 45.601 +15.316
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1813+17 AN 97.1935 ASAS J181755+1758.9
ASASSN-V J181754.77+175853.1 BD+17 3520 HD 168198
HIP 89669 IRC +20356 RAFGL 2116
SAO 103576    
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Variability type
SRB
Spectral type M4
Mag. range
6.8 - 8.0 V
Discoverer --
Epoch
18 Mar 2005 (HJD 2453447.5) Ephemeris
Outburst --
Period 76.5 d
Rise/eclipse dur. 44%  (34 d)
Remarks
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1 GCVS Team Superposition of variations with shorter P and small Delta(m) [O.J.Eggen, Mem RAS 77, part 4, 159, 1973.].
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References
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1 C. Koen, L. Eyer, 2002, MNRAS 331, 45 2002MNRAS.331...45K
2 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 Meteor N3, 23, 1980. --
4 A.Model, MVS 2, H.6, 129, 1964. --
5 Catalogue of Stellar Spectral Classifications (Skiff, 2005) 1949AnHar.112....1C
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 = 1.28H = 0.25K = 0.07J - K = 1.22
AllWISE W3 = -0.78W4 = -1.67W3 - W4 = 0.89
Images
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Supporting Documents
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Campaigns/Programs
 Binocular program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2011-06-29 08:31 UTC Period, epoch and range from ASAS-3 data.
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.