HAT-P-4
Light Curves & Finder Charts
Links internal to this web page:
    Comments
    Basic data
    Summary
    Amateur LCs
    Professional LCs
    OOT LCs
    Finder images
    References

Comments

    This is a difficult object to observe because depth is small (9 mmag) and length is long (4.2 hr).

Basic data

    RA = 15:19:57.9, Decl = +36:13:47
    Season = May 17
    B = 11.78, V = 11.21, Rc = 10.88, Ic = 10.54, B-V = 0.57, J = 10.100, K = 9.770
    HJDo = 4245.8154 (??) & P = 3.056536 (57) day (Schneider listing in Extrasolar Planets Encyclopaedia)
    HJDo = 4245.8151 (5) & P = 3.0565150 (8) day (AXA fit); or better yet: HJDo = 4704.2924 (3) & P = 3.0565150 (8) day (AXA fit)
    Depth = 9.3 ± 0.8 mmag (R-band)
    Length = 4.21 ± 0.08 hr (R-band)
    Fp = 0.24 (6), F2 = 0.70 (12) (R-band)

Summary

 

 

   

       

Amateur Light Curves



9627WPK


9408GJ21


9405NR21


8510HVP1


8331rcr1


7a06vmt1

Professional Light Curves


Discovery paper LC (Kovacs et al, 2007, below). My readings give L = 4.21 ± 0.01 hr, D = 9.2 ± 0.5 mmag.


Out-of-Transit (OOT) Light Curves


Finder Charts



References

Kovacs et al, 2007, http://xxx.lanl.gov/abs/0710.0602 (arXiv preprint)

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WebMaster: Bruce L. Gary.  Nothing on this web page is copyrighted. This site opened:  October 03, 2007.  Last Update:  2009.06.29