Bubble Galaxy


Bach Zoltán

Click on the image for a larger version.

In the sky

Coordinates: RA: 11h 5m, D: -0° 2'

Technical data


GSO Classic Cassgerain 200/2430 ASA 0.73 corrector F / 8.8


Atik ONE 6


SkyWatcher EQ6 GoTo


Lacerta Mgen OAG


18 hour Luminans 3x1 hour RGB bin2, Ha 3hour bin2

Location, date:

27/5000Vecsés April-May 2020


Maxim,Photoshop CS6


NGC 3521 (Bubble Galaxy) is a spiral galaxy of type SAB (rs) bc, located approximately 26-27 million light-years away in the constellation Leo. It has a weak inner ring and a moderately loose, sometimes distorted arm structure. Located in the core of the galaxy, in the center of the HII region, has a luminosity of 11 magnitudes. It is estimated at 85-90 billion solar masses! The entire galaxy is surrounded by a huge cloud of matter, and a very bright “bulge” can also be seen, which is also named after this bulge. I used a long-focus Cassgerain binoculars to record, improving its brightness with ASA 0.73 reducer.