Arp 145 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Andromeda (And)

Arp 145

This object is a rarely imaged pair of interacting galaxies located 260 million light years away in the constellation of Andromeda at a declination of +41 degrees. This object spans just over 1 arc-minute in our apparent view, which corresponds to a span of about 100,000 light years.

I apologize for the tight crop here but this object lies near some bright stars that really detract from seeing the galaxies, so I removed them.

I first became fascinated with this object when I saw its image in the SIMBAD on-line atlas. Who knows what is actually going on here, but it looks like there are remnants of two similarly sized galaxies, an elliptical at top and a spiral at bottom. Three bright stars (2 lower left and 1 upper right) seem to be superimposed over the galaxies, so just ignore them. It looks like the elliptical galaxy passed right through the spiral galaxy and left a "black hole" in its wake. The core of the spiral is seen displaced to the left. Numerous bright blue star clusters have initiated from the interaction.

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Status	Advanced success
Started	...
Astrometry.net job	3159039
PixInsight job	04V611VRHN9Z2GTTQ598ROQWPHHSB3XZ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h23m10s.861
RA (top/left)	02h23m22s.639
RA (top/right)	02h23m34s.259
RA (bottom/right)	02h22m59s.380
RA (bottom/left)	02h22m47s.493

Dec (center)	+41°22′06″.17
Dec (top/left)	+41°16′29″.86
Dec (top/right)	+41°26′13″.79
Dec (bottom/right)	+41°27′42″.45
Dec (bottom/left)	+41°17′57″.100

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