Proposal #143

Proposer	(33599) Cliff Kotnik (clkotnik@gmail.com) obscode: KCLA
Assigned To	(3663) Dirk Terrell
Date Submitted	July 6, 2020
Status	Allocated
Priority	Normal
Proposal	HIP 105217 was identified as variable by Hipparcos 30 years ago. Recent TESS full frame images allow this object to be identified as a GDOR with multiple periods of pulsation. The strongest periods are approximately 0.615 and 0.577 days. There are some indications from TESS of a period around 0.02 days (29 minutes). I am requesting BSM images to accomplish the following: -obtain images in multiple standard filters for these pulsations -verify that the TESS photometry does not include the blend of multiple stars -obtain 1 hour time series observations on some subset of nights to determine if the 0.02 d periods from TESS are real or are related to the 30 min. cadence of TESS. I request B, V and Ic filters.

Targets
Target	RA (H.HH)	Dec (D.DD)	Magnitude	Telescope	Observation Frequency	Expiration Date	Proprietary Term
HIP 105217	21.312400	-23.80783	8.75–8.71	BSM_S	2	Jan. 17, 2021	No

(4726) Kenneth Menzies — July 21, 2020, 12:38 p.m.: Time series plan generated and committed to BSM_S and BSM_Berry.

Comments on this proposal are closed.