RA/DE = 21:34:05.6 +29:20:02
V ~ 16.7, B-V = ?, CMC14 r' = 16.507, J = 16.516 (129), K = 16.871 (???)
Based on r', J & K, I estimate: B = 16.55 (89), V = 16.34 (31), Rc = 16.36 (24), g' = 16.39 (55), i' = 16.74 (17), z' = 16.99 (19).
Observation Summary
Of the 13 LCs in this archive, 2 show statistically-significant variations. This is an important issue to resolve, so simultaneous observations by two or more observers are needed before we believe that the variations are produced by the WD system.
20110820 6.2 hrs 5794.315 - 5794.571 Srdoc Smooth
20110820 6.3 hrs Littlefield Smooth
20110820 4.0 hrs 5793.579 - 5793.747 Vander Haagen Smooth
20110820 6.5 hrs 5793.689 - 5793.959 Wiggins Smooth
20110819 7.0 hrs 5793.289 - 5793.580 Ayiomamitis Smooth
20110819 7.9 hrs 5792.574 - 5792.899 Vander Haagen Smooth (& good precision)
20110819 5.2 hrs 5792.567 - 5792.788 Harvard Clay Smooth
20110818 4.0 hrs 5792.311 - 5792.475 Corfini Smooth
20110818 6.0 hrs 5792.289 - 5792.542 Ayiomamitis Smooth
20110818 7.0 hrs 5791.579 - 5791.867 Harvard Clay Sinusoidal variation: amp = 90 mmag, P = 6.4 hrs (same as Srdoc)
20110817 7.4 hrs 5791.320 - 5791.628 Srdoc Quasi-sinusoidal variation: amp = 94 mmag, P = 6.4 hrs.
20110816 7.6 hrs 5790.311 - 5790.625 Srdoc Sinusoidal variation: amp = 42 mmag, P = 4.9 hrs.
20110816 4.2 hrs 5789.668 - 5789.844 Garlitz Smooth
Light Curves
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raw spo Observer Gary Vander Haagen states: "Poor sky conditions with auto shutdown."
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raw spo No variations discernible here.
raw spo Note: Mag scale differs from standard 1.0 mag. 1 hr overlap with Srdoc; both show fading slope.
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raw spo Note the sinusoidal variation.
raw spo Good for a faint target & modest aperture!
Finder Image
SkyMap version.
Zoom.
Aladin image.