ARP 148, VV 32, PGC 33423

Ursa Major

RA
11 03 53
DEC
+40 50 57

Size: 0,6’
Mag: 15.3B (NED)

Type: (Collision Ring) Galaxy Pair

Famous Galaxy Pair which ring-morphology was formed by a collision of two galaxies.

The birthday was during the year 1940 when N.U. Mayall discovered this galaxy pair on a photo plate from the famous 36” Crossley reflector of the Lick Observatory. He described the pair as a “question mark”

Twenty four years later Burbidge refers more detailed about the object, which was photographed 1961 at the prime focus of the 120” Lick reflector. They first saw details in the ring and the connection between the ring and the cigar shaped part.

M_Lick.jpg
Lick 120"

Finally the HST showed us the great amount of detail in the shockwave and the main body.

M_HST.jpg
HST

My observing notes:
16”, 360x, NELM 6m5+
easy to see with direct vision, small, 1:2 E-W elongated, no ring structure

27”, 586x, NELM 7m0+
bright but small galaxy (pair); 1:2 E-W main body with brighter spots at the ends; W following a very faint, round glow; better defined S edge; no structure within the ring

PGC33423.jpg
27" Newton, 586x

“GIVE IT A GO AND LET US KNOW”

GOOD LUCK AND GREAT VIEWING!