NGC 4550 + NGC 4551

NGC 4550 + NGC 4551
NGC 4550 and NGC 4551 are two neighboring galaxies located in the Virgo Cluster. They appear close together in the sky and are frequently imaged as a pair. NGC 4550 is a lenticular galaxy notable for its rare double counter‑rotating stellar disks, a signature of past mergers or accretion events. It shows a smooth, elongated profile with little internal structure. NGC 4551, positioned just north of NGC 4550, is a faint elliptical galaxy with low surface brightness. It represents the numerous low‑luminosity ellipticals that populate the Virgo Cluster. Together, the pair forms a visually appealing duo in wide‑field observations of the cluster’s dense central region.

Object Data

NGC:NGC 4550 + NGC 4551
Type:Lenticular (S0) + Elliptical (E)
Constellation:Virgo
Distance:~55 million light-years

Observation Data

Location:Pollux Observatory, Zuidlaren
Date:2013-04-05

Technical Data

Exposure time:L- 50 x 180 sec
R- 28 x 180 sec
G- 25 x 180 sec
B- 25 x 180 sec
Total: 6.4 h
Telescope:Takahashi FSQ106 ED
Camera:ZWO ASI 1600mm Pro
Color palette:LRGB
Filters:Astronomik 6 nm

Tags

NGC 4550, NGC 4551, lenticular galaxy, elliptical galaxy, Virgo Cluster, galaxy pair