Animation of pulsating stars in Messier 3 globular cluster (Remco Kemperman)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 3 · NGC 5272

Animation of pulsating stars in Messier 3 globular cluster

I tried to make an animation of my photometry run on globular cluster M3.
I saw 15 pulsating RR Lyrea stars in the measurements at the time, but there are certainly more. Mainly because I could only do good photometry on the outer edges of the globular cluster (stars packed too closely together for photometry).
So now I really see a lot of stars blinking

These are the frames from 1 night. A total of 130 recordings of 3 minutes. For the animation I have grouped and stacked them by 10 . So I have 13 frames in the animation, in a loop. The loop represents a period of 6.5 hours.
I found out through my photometry that most of the stars here are RR Lyrea pulsating stars with a period of about 12 hours. In itself that is logical because RR Lyrea stars also have a periode-luminosity relationship. All these RR Lyrea stars are about the same brightness, and will therefore also have a similar period.

telescope: skywatcher 150/750 pds newton
mount: HEQ5
camera: QHY294M
filter: L filter Baader Planetarium
calibrated and stacked in Pixinsight
photometric analysis in Vphot from AAVSO

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Status	Basic success
Started	...
Astrometry.net job	5732617
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Animation of pulsating stars in Messier 3 globular cluster

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Animation of pulsating stars in Messier 3 globular cluster

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