Proposal #553

Proposer	(50438) Julian DelColle (jdelcolle2008@gmail.com) obscode: DJUF
Assigned To	(3663) Dirk Terrell
Date Submitted	Sept. 10, 2024
Status	Allocated
Priority	Normal
Proposal	Hello, I am interested in observing HDE 226868 for a school astronomy project. Every 5.6 days, it orbits behind Cygnus X1, a black hole. My end goal is to measure the mass of the black hole using the varying brightness. I would like 2-3 hours of 15-20 minute photos a night for 3-5 orbits(15-30 days). My preferred filters are B and V. I am inexperienced with photometry so if something seems unreasonable please inform me. Thank you for considering this proposal and I hope to hear from you soon. Kind Regards, Julian Del Colle(DJUF)

Targets
Target	RA (H.HH)	Dec (D.DD)	Magnitude	Telescope	Observation Frequency	Expiration Date	Proprietary Term
HDE 226868	19.972689	35.20161	8.72–8.93	BSM_NH2	1	March 12, 2025	No

(50438) Julian DelColle — Sept. 12, 2024, 12:42 a.m.: In the VSX the star is referred to as V1357 Cyg, just in case you cant find HDE 226868
(3663) Dirk Terrell — Sept. 12, 2024, 10:10 p.m.: The TAC suggests 3x BV every couple of hours rather than a time series.
(50438) Julian DelColle — Sept. 13, 2024, 6:35 p.m.: That works for me.
(50438) Julian DelColle — Sept. 13, 2024, 6:38 p.m.: My preferred contact email is j.delcolle@share.epsb.ca, Please contact me here if necessary
(4726) Kenneth Menzies — Sept. 13, 2024, 9:37 p.m.: Committed to NH2
(50438) Julian DelColle — Oct. 7, 2024, 7:29 p.m.: How long can I expect until I get some photos, I need data to start formulating my project. is there an approximate date I can expect some photos to be sent to my VPhot account.
(50438) Julian DelColle — Oct. 20, 2024, 6:08 p.m.: Hi, just seeing if I can get an update on my question, I'm not sure what's going on but my teacher(Mr. Doktor) says i should have gotten photos by now. any updates would be appreaciated

Comments on this proposal are closed.