The sky around Arp 276 at true scale, north up and east left, with stars to magnitude 8. The circles show the field of a low-power eyepiece and of 10×50 binoculars.
Arp 276 is a galaxy pair (Sc + Sb) in Aries, 190 million light-years away
Arp 276 (NGC 935, UGC 1937, PGC 9388, VV 238, IC 1801) is a galaxy pair (Sc + Sb) in the constellation Aries, 190 million light-years away. It shines at magnitude 12.8 and spans 1.6′ × 1′ of sky, about 88,400 light-years across. It is a telescope object, 6 inches or larger, and it is highest in the evening sky in December.
Galaxy: a system of billions of stars, gas and dust held together by gravity, far outside the Milky Way. Spiral galaxies have a disk with arms; elliptical galaxies are smooth, round or oval swarms of older stars.
Arp 276 is one of Arp's interacting double galaxies
Halton Arp photographed it for his Atlas of Peculiar Galaxies (1966) as field Arp 276. It is in his group of double and multiple, Arp 269 to 332, under the category Interacting double galaxies. The field holds 2 galaxies.
Arp 276 lies 6.2° southeast of Hamal, the magnitude 2.0 star. Three fingers held at arm's length cover about 5°.
Arp 276 is highest in the evening in December
The chart gives its height above the horizon at 9 pm through the year, from 60°N to 40°S. It can be seen from the whole northern hemisphere and south to about 70°S, and never sets north of 70°N.
Arp 276 is 190 million light-years away
The light seen from Arp 276 tonight left it about 190 million years ago, long before modern humans existed. It ranks 297 of 422 by distance among the galaxies on Go Astronomy. Distance source: Hubble flow, cz=4086 km/s, H0=70.
Objects within 6° of Arp 276
No other Messier, Caldwell or Herschel 400 object lies within 6°.
Arp 276 catalog data
Field
Value
Designations
NGC 935, UGC 1937, PGC 9388, VV 238, IC 1801, Arp 276, UGC 1936, PGC 9392
