The Seven Sisters, Pleiades, 2019

M45

The magnificent star cluster Pleiades, also known as The Seven Ancient Greek Sisters and Subaru in Japan, is a collection of young and bright stars that currently pass through interstellar cosmic dust. It will take them several tens of thousands of years to move past this dust.

Tech Card

Date / Location

29th November 2019, Oxfordshire, GMT+0, United Kingdom, TEMP: -2C, Bortle Class 4 ~SGM: 21.29 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

Image Quality

14 bit RAW (NEF)

Exposure time per image / number of composities and sensitivity

ISO 2000, 8 x 240" subs

Total Integration Time

32mins

Calibration Frames

12 Darks, 20 Bias, 20 Flats

Software

PixInsight 1.8 Core

Lightroom

Photoshop

DEEP SKY

Deep Sky photographs

STARSCAPE

Starscape photographs

SOLAR SYSTEM

Solar system photographs