Proposal #692

Proposer	(43518) W. Allen Gilchrist (gilchrist.allen@ymail.com) obscode: GWAA
Assigned To	(3663) Dirk Terrell
Date Submitted	May 5, 2026
Status	Allocated
Priority	Normal
Proposal	I have an interest in HADS stars, and have been able to publish a few papers using my own observations along with other data from the literature (TESS, SuperWasp, AID, etc.). I found a paper on GSC 1426-590 (Pyatnyskyy, M., and Andronov, I., OEJV Issue 260 (10.04.2025) that includes V-band observations along with TESS and other data. Their O-C analysis shows period changes over time. Multi-color (B, V, Rc) photometry could provide significantly more information about this star. The period listed in VSX is P=0.068419093 d or 98.523494 min. This proposal will require time series measurements (B, V, Rc, B, V, Rc . . . ) over a few hours perhaps on two or three nights spaced a few days apart. I know that time series measurements are not given top priority, but I decided to go ahead and submit a proposal rather than just giving up. In the past, I would have made the observations using my own observatory, but I recently lost access to that facility. Thank you for your consideration. W. Allen Gilchrist, Jr., PhD.

Targets

Target Name	RA (H.HH)	Dec (D.DD)	Magnitude	Observation Frequency	Expiration Date	Proprietary Term
CSS_J102714.3+205943	10.453975	20.99539	13.95–13.55	0	June 16, 2026	No

Plans currently in place

dso35/AAVSO_P692_GWAA_AUTO.csv

# $Id: AAVSO_P692_GWAA_AUTO.csv 5859 2026-05-26 21:35:49Z MZK $,,,,,,,,,,,,,,,,,,,,,,,,
#PROPOSAL=692,,,,,,,,,,,,,,,,,,,,,,,,
#REQUESTER=GWAA,,vphot,,,,,,,,,,,,,,,,,,,,,,
#target,hh,mm,ss.ss,dd,mm,ss.s,desc,priority,monitor,maxX,nrepeat,bin,[filter,exposure,nexp],[filter,exposure,nexp],[filter,exposure,nexp],,,
CSS_J1027143,10,27,14.31,20,59,43.4,CSS_J1027143,110,0,2,120,1,B,60,1,V,30,1,SR,30,1,EarliestTime=2026-05-05T00:00:00,LatestTime=2026-06-16T00:00:00,BestEfforts=1

Comments

(4726) Kenneth Menzies — May 16, 2026, 1:58 p.m.: committed to dso35.
(43518) W. Allen Gilchrist — May 25, 2026, 9:30 p.m.: I have processed all the images through Vphot and TA. The results look nice. What, if anything, do I need to do to request another observing run? GWAA

Comments on this proposal are closed.