NGC 4559

Introduction | Map | My Own Photos | My Own Observations | References

On this page I collect my observations of the barred spiral galaxy NGC 4559 (Koi Fish Galaxy) in the constellation Coma Berenices.

Introduction

The barred spiral galaxy NGC 4559 (Koi Fish Galaxy) in the constellation Coma Berenices has large regions where new stars are born.

Nearby (2°), there is the irregular Needle Galaxy NGC 4565, one of the most prominent and famous edge-on spiral galaxies in the sky.

NGC 4559 (Koi Fish Galaxy)		NGC 4565 (Needle Galaxy)
Size: 10.7' x 4.4' (Wikipedia) Distance: 37/29 million light years (Wikipedia) Rating: ---		Size: 13' x 1' / 15,8' × 2,1' (Stoyan/Wikipedia) Distance: 44/57 million light years (Stoyan/Wikipedia) Rating: * (Stoyan)

Map

The barred spiral galaxy NGC 4559 (Koi Fish Galaxy) in the constellation Coma Berenices (selected - and many other galaxies that are in the vicinity) (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)

My Own Photos

eVscope


NGC 4559 - Apr 21, 2020	NGC 4559 - May 21, 2020, processed	NGC 4559 - May 21, 2020, processed

NGC 4559 - Apr 21, 2020, processed	NGC 4559 - May 21, 2020, processed	NGC 4559 - May 21, 2020, processed

Vespera Pro


NGC 4559, May 19, 2025 - 2000p, 20:30 min		NGC 4559, May 19, 2025 - 1200p, section, 20:30 min

NGC 4559, May 19, 2025 - 1200p, section, 20:30 min, processed		NGC 4559, May 19, 2025 - 1200p, section 20:30 min, processed and denoised (PAI)

My Own Observations

Observations April 2020

April 21, 2020 (Mühlhausen/Kraichgau: eVscope): NGC 4559 photographed
May 21, 2020 (Erkerode: eVscope): NGC 4559 photographed in the new rectangular format without overlay

Observations May 2025

May 19, 2025 (Mühlhausen/Kraichgau: Vespera Pro): NGC 4559 photographed (20:30 min).

References

NGC 4559 (Wikipedia): en.wikipedia.org/wiki/NGC_4559
NGC 4565 (Wikipedia): en.wikipedia.org/wiki/NGC_4565