Galaxies

It is estimated that there are between 200 billion and 2 trillion galaxies in the universe. Each galaxy may contain several hundreds of thousands of stars. It is for example estimated that our galaxy, the Milky Way has over 100 billion stars. Galaxies are classified either as ellipitcal, spiral or irregular. Galaxies are made of stars, stellar remnants, interstellar gas, dust and dark matter.

Below you will find my best images of 2020 and 2021. All were taken either with my Skywatcher Evostar ED-80 or the Skywatcher ED-120. I used the Nikon D750. For these shots of galaxies, I used the Optolong L-pro, is a multi-bandpass filter which selectively suppresses light pollution.

The Pinwheel galaxy (M101)

Skywatcher ED120; Nikon D750; Optolong L-pro; 220x60sec; ISO 800; Bortle 6; April 2021

The Whirlpool galaxy (M51)

Skywatcher ED120; Nikon D750; Optolong L-pro; 180x90sec; ISO 800; Bortle 6; April 2021

The Bode (M81) and Cigar galaxy (M82)

Bode & Cigar galaxy (M81 & M82)
Skywatcher ED80; Nikon D750; 250x60sec; ISO 800; Optolong L-pro; Bortle 6; April2021

The Andromeda galaxy (M31)

Andromeda galaxy (M31)
Skywatcher ED80; Nikon D750; Optolong L-pro; 90x120sec; ISO 1250; Bortle 6; November 2020

The Triangulum galaxy (M33)

Skywatcher ED80; Nikon D750; Optolong L-pro; 200x90sec; ISO 800; Bortle 6; November 2020

The Leo triplet (M65, M66 & NGC 3628)

Leo triplet (M65, M66, et NGC 3628)
Skywatcher ED80; Canon 660D modded; 40x120sec; ISO 800; Optolong L-pro; Bortle 6; March 2021