NGC 4569
NGC 4569, also known as Messier 90, is a spiral galaxy located in the Virgo Cluster. It is
classified as an “anemic spiral,” meaning it contains significantly less gas than typical
spiral galaxies. This is caused by ram-pressure stripping as the galaxy moves rapidly through
the dense intracluster medium.
The galaxy shows a bright central region and faint, tightly wound spiral arms with reduced
star formation. M90 is one of the fastest-moving galaxies in Virgo, with a high negative
radial velocity relative to the Milky Way. Its unusual appearance and environmental effects
make it an important object for studies of galaxy evolution in clusters.
Object Data
NGC:NGC 4569 (Messier 90)
Type:Anemic spiral galaxy (SA(rs)ab)
Constellation:Virgo
Distance:~55 million light-years
Observation Data
Location:Pollux Observatory, Zuidlaren
Date:2024-05-08
Technical Data
Exposure time:L- 9 x 180 sec
R- 9 x 180 sec
G- 9 x 180 sec
B-9 x 180 sec
Total: 1.8 h
R- 9 x 180 sec
G- 9 x 180 sec
B-9 x 180 sec
Total: 1.8 h
Telescope:Takahashi FSQ106 ED
Camera:ZWO ASI 1600mm Pro
Color palette:LRGB
Filters:Astronomik 6 nm