NGC 4725 is an intermediate barred spiral galaxy with a prominent ring structure, located in the northern constellation of Coma Berenices near the north galactic pole. It was discovered by German-born British astronomer William Herschel on April 6, 1785. The galaxy lies at a distance of approximately 40 megalight-years from the Milky Way. NGC 4725 is the brightest member of the Coma I Group of the Coma-Sculptor Cloud, although it is relatively isolated from the other members of this group. This galaxy is strongly disturbed and is interacting with neighboring spiral galaxy NGC 4747, with its spiral arms showing indications of warping. The pair have an angular separation of 24′, which corresponds to a projected linear separation of 370 kly. A tidal plume extends from NGC 4747 toward NGC 4725.
Object Designations: NGC 4725
Also known as: The Pinwheel Galaxy
Constellation: Coma Berenice
Object Type: spiral galaxy
Distance: 40.1 million light-years away
Magnitude: 10.1
Discovery: William Herschel
Telescope: Apertura CarbonStar 200 Imaging Newtonian 800mm / F4
Camera: ZWO ASI2600 MC Pro – No Filter
Mount: Celestron AVX
Control: CPWI Software
Guiding: Apertura 32mm Guide Scope, ZWO ASI120MM Camera, PHD2 Software
Imaging Software: AstroSharp Ltd SharpCap
Processing Software: Pleiades Astrophoto PixInsight
Russell Croman Astrophotography BlurXTerminator
Russell Croman Astrophotography NoiseXTerminator
Russell Croman Astrophotography StarXTerminator
Stanley Dimant EZ Processing Suite
In this wider angle image below, you can see other galaxies further away.
