Hi Folks
Last week 29-04-2025 I was observing TIC 101643617 , And got very curious curve about this star, by observing the data It started with a very high Flux and get down of 2 times less of close to 4 hours observation. I try to find a way to understand the curve but unable to get into it!
So I propose you to get into it also and hopping you can find a solution to this.
The main issue I got was to get the right ADU on the star and decided to go for something I tough was correct. The material I used :
Camera QHY 174 GPS
Mount CGX
Telescope Omegon Pro 254/1016, no coma corrector.
UV-IR filter.
I used the AIJ software for this data analyses.
If you want to use my data I can send you the link to my brut data.
The star is not registered into AAVSO in any catalogue or I didn’t found it.
If you could help me out it will be nice.
Greetings from Luxembourg.
Hello Frédéric,
the star is constant in ASAS-SN data (V= 11.79) and it has V= 11.81 according to Gaia DR3 (transformed).
From what I see in sky images, this star is almost superimposed to the bright galaxy NGC 4217.
I bet that light from the galaxy is playing a role here.
It is an F-type dwarf and we wouldn’t expect that kind of behaviour for such a star.
Cheers,
Sebastian
Hi Sebastian thank you for replay.
Oh this sounds interesting so even the star is far away from the galaxy in distance the light from the galaxy is disturbing the star so with this graph would it mean the galaxy is pulsating in light due to the core? Yes true we know it was a F-star that was the reason why we want to check on exoplanet around it but then this will become a bit tricky to get the right data from this star.
Thank you for your opinion.
Kind regards
Fred