Comments

 Small planet, shallow depth, few comparable ref stars nearby: difficult to observe. But we have two brave observers whose valiant effort puts amateurs "on the board." The period seems good, so far.

Basic data

    RA = 19:50:50.2, DE = +48:04:51
    Season = July 20
    V = 9.59, B-V = 1.05
    HJDo = 4605.89132 (32) and P = 4.887804 (4) days (as listed in Schneider's Extrasolar Planets Encyclopaedia)
    HJDo = 4605.89132 (63) and P = 4.887789 (5) days (as derived from AXA submitted data)
    Depth = 3.9 +- 1.0 (R-band); 4.2 ± 0.2 (z-band)
    Length = 2.30 +- 0.10 (R-band); 2.30 ± 0.03 hr (z-band)
    Fp = 0.11 ± 0.10, F2 = 0.72 ± 0.25
    b = 0.35 ± 0.14

Table & Plots of Amateur Observations

Amateur Light Curves

9807NWP

9708SG2

9619NWP  This is a difficult object to observe because of the shallow depth; this is a valiant effort. We need more data.

Professional Light Curves

 
 Copied from discovery paper (Bakos et al, 2009, reference below).

Finder Charts

References

Discovery paper: Bakos et al, 2009: http://xxx.lanl.gov/abs/0901.0282

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WebMaster: Bruce L. Gary.  Nothing on this web page is copyrighted. This site opened:  2009.01.06.  Last Update:  2009.08.07