Double cluster in Puppis (M46 and M47) and their little companion NGC 2438 (with particular)

Image Description and Details :

 In the direction of the constellation of the Puppis there is this pair of open clusters cataloged by Charles Messier as M46 and M47. On closer inspection, in the direction of M46 there is a very small planetary nebula cataloged as NGC 2438, the remnant of a stellar explosion that left a white dwarf at its center. NGC 2438 is 2900 light years away from us and has an extension of "just" 4.5 light years.

Scope: Skywatcher ED80 reduced @480mm, f6.0
Camera: Qhy168c @-15°C, gain 10, offset 50, with reducer DELUXE Artesky 0.8x and Optolong L_Pro filter
Guide: finderscope Konus 50/180 and Asi224Mc
Mount: Skywatcher Eq6r Pro
Accessories: Zwo EAF
Management system: Raspberry PI4 with Stellarmate OS remotely controlled with Windows 10
Acquisition software: Kstars/Ekos
Frames: 18x300" calibrated with flat, dark and bias
Stacking and post-production softwares: AstroPixelProcessor, Pixinsight and Photoshop
Location: Ferrara (Italy), Bortle 6, SQM 19,22

Copyright: Massimo Di Fusco