Arp 273 (UGC 1810/1813), Dan_Paris

Arp 273 (UGC 1810/1813)

Arp 273 (UGC 1810/1813), Dan_Paris

Arp 273 (UGC 1810/1813)

Equipment

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Acquisition details

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Description

This is my first attempt on this distant  pair of interacting galaxies (300 millions l.y. away) made famous by a breathtaking HST picture.  Quite a challenging object for my moderate focal length scope and from my light-polluted backyard.

Technical data :
200/800 custom newtonian astrograph with Romano Zen optics and carbon fiber tube
TS 2.5" Riccardi-Wynne corrector
ASI1600mm + ZWO LRGB filters
Guiding : ZWO OAG  + ASI120mm mini + AsiairV1
Luminance : 390*60sec at gain 76 and T=-10°C
Chrominance : 28*60sec at gain 76 and T=-10°C for each RGB filter
Conditions : Bortle 7 skies in Paris' suburbs (20km from the Eiffel tower), rather mediocre seeing
Capture : 10/28/2021 and 10/31/2021

Comments

Histogram

Arp 273 (UGC 1810/1813), Dan_Paris