AAVSO: American Association of Variable Star Observers

Proposal #92

Proposer (33599) Clifford Kotnik (clkotnik@gmail.com) obscode: KCLA
Assigned To(3663) Dirk Terrell
Date SubmittedNov. 27, 2018

ASAS J035812+1629.7 (HD 285322) was identified as an eclipsing binary by ASAS and subsequently added to VSX as an EA variable with a period of 1.5 d. There are no observations in AID nor AAVSONet Epoch DBs. APASS epoch DB has at most observations per filter. I cross matched K2 targets with VSX and found a good light curve for this star that pretty clearly shows it not an Algol type binary (I can provide a phased light curve from VStar upon request). Just yesterday (11/26/2018), VSX was updated with results from this https://arxiv.org/pdf/1607.02339.pdf analysis.

I propose collecting time series observations in B and V for this star over several nights to analyze the color during all portions of the light curve. I am embarking on a personal education project to better understand how to analyze binary light curves. I recently purchased BinaryMaker and would use that to analyze the results.

Additionally, I would like to get a better understanding of AAVSONet so I can better assist with software improvements. This would give me the user perspective on this facility.

Cliff Kotnik

Target RA (H.HH) Dec (D.DD) Magnitude Telescope Observation Frequency Expiration Date Proprietary Term
ASAS J035812+1629.7 3.970011 16.49489 9.056–8.797 No


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