Widefield of M52, Bubble Nebula and Nova Cas 2021

Cassiopeia

A super widefield image I took back in 2021 on a summer night where the supernova Nova Cas 2021 (V1405 Cas) can be seen. This is 1 hour and 12 mins of guided data. I used a FSQ85-ED with its dedicated 1.01x flattener and a D180A.

Tech Card

Date / Location

14th August 2021, Warwickshire, GMT+0, United Kingdom, Bortle Class 4 ~SGM: 21.20 mag./arc sec2

Equipment

Camera: Nikon D810A

Imaging Telescope: Takahashi FSQ-85ED

Correcting Lens: Takahashi Flattener 1.01x (composite focal length at 455mm and focal ratio at f/5.4)

Mount: iOptron CEM25EC guided with Lacerta MGEN-II Superguider

Image Quality

14 bit RAW (NEF)

Exposure time per image / number of composites and sensitivity

ISO 1250, 5 x 300" subs

Total Integration Time

25mins

Calibration Frames

16 Darks, 16 Bias, 24 Flats

Software

PixInsight 1.8.8-8

Lightroom

Photoshop

DEEP SKY

Deep Sky photographs

STARSCAPE

Starscape photographs

SOLAR SYSTEM

Solar system photographs

EVENTS

Various astronomical events photographs