M33 - Triangulum Galaxy (Andres Salaverria)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: IC 131 · IC 132 · IC 133 · IC 135 · IC 136 · IC 137 · IC 142 · IC 143 · M 33 · NGC 588 · NGC 592 · NGC 595 · NGC 598 · NGC 604 · Triangulum Galaxy · Triangulum Pinwheel

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M33 - Triangulum Galaxy

Revision title: Revision of M33 - Triangulum Galaxy

Powered byPixInsight

M33 - Triangulum Galaxy

Revision title: Revision of M33 - Triangulum Galaxy

I imaged this nifty galaxy from my backyard over three nights. I played with the exposures, with the aim to get as much data under light polluted skies. It's a combination of 20 s at unitary gain, 20 s at gain 101, 60 s at unitary gain and 60 s at gain 101. Interestingly enough I seemed to get the best results at 60s/gain 101. I thought I would get better results with a lower exposure and less gain. The stars are a little "bloated". In two of the three sessions the seeing was not great, but I used most of the subs anyway.

Total integration time is 16680 seconds (over 4.5 hours). Average exposure in the acquisition details.

I am pleased with the results. Think how people used to do this with film and cooled cameras using dry ice ... Oh, and of course, manual guiding.

Original
Final
B

B

Title: Revision of M33 - Triangulum Galaxy

Description: Reprocessed the integrated image from APP. Removed light pollution with the APP tool. Then did PhotometricColorCalibration in PI, and some CurveTransformation to increase contrast. Final retouch in PS. No additional denoising. I think it came out better than first version. What do you think?

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WO Redcat 51 Group

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Status	Advanced success
Started	...
Astrometry.net job	5362358
PixInsight job	51YM22CV1DF2QVFWC22LWOU392WB0TFA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h33m32s.39
RA (top/left)	01h36m09s.56
RA (top/right)	01h26m08s.18
RA (bottom/right)	01h31m00s.40
RA (bottom/left)	01h40m50s.83

Dec (center)	+30°38′08″.4
Dec (top/left)	+32°13′50″.3
Dec (top/right)	+31°12′57″.7
Dec (bottom/right)	+29°02′16″.5
Dec (bottom/left)	+30°01′47″.4

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M33 - Triangulum Galaxy

Revision title: Revision of M33 - Triangulum Galaxy

M33 - Triangulum Galaxy

Revision title: Revision of M33 - Triangulum Galaxy

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M33 - Triangulum Galaxy

Revision title: Revision of M33 - Triangulum Galaxy

M33 - Triangulum Galaxy

Revision title: Revision of M33 - Triangulum Galaxy

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