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April 16, 2012 at Ft. Davis
NELM 7.0 to 7.5 variable as sky glow due to higher than normal solar activity
Telescope: 48” f/4.0 reflector
Eyepieces: 10 and 6mm ZAO-II, 10mm Delos, 8mm TMB Supermonocentric
decided to make a run of
some of the Hickson Galaxy groups with my friend's
48" reflector as I have not seen all members with my
I've decided to make
a run of some of the Hickson Galaxy groups with my friend's 48" reflector as I have not seen all members with my smaller scopes.
The coordinates listed represents the approximate center of the compact group.
Hickson 39 in Hydra 09 29 28 -01 20 51
48” (610x) – Chain of four equally spaced galaxies aligned NW to SE and 1.2’ long. Component A, B and C are equal in brightness and size and in a perfect collinear line. Component D is slightly brighter than the first three and slightly north of the line formed by A to C. Stellar cores in all components except C. An extra nearby galaxy, PGC 1120300, is an even surface brightness 3:1 elongated glow with somewhat diffuse edges. 0.2’ long and PA = 90 degrees.
Hickson 50 in Ursa Major 11 17 06 +54 55 01
48” (488 and 610x) – The seeing wasn’t that steady while I was at the eyepiece. I’ve seen all five components at an earlier time with this scope. Detected only components A, B and D as very to extrememly faint very small round glows. A mag 16.7 star lies just 20” SW from component A.
Hickson 45 in Ursa Major 10 19 11 +59 06 29
48” (488, 610 and 813x) –
Component A is a bright 5:2 elongated glow with diffuse edges. Much brighter center. PA = 80 and 0.8’ long. A mag 12.7 star lies 1.0’ SE. A mag 13.1 star lies 0.9’ slightly west of due north.
Component B is a considerably faint even surface brightness small round glow with a slightly brighter center. Defined edges. 0.2’ across.
Component C is a very faint 3:1 elongated even surface brightness glow. 0.2’ long and PA = 135 degrees. A blazing mag 11.1 star lies just 25” SW and a mag 12.9 star lies 1.2’ ESE.
Component D is just 15” NE from the east end of Component A. A faint very small round glow with defined edges. 0.1’ across.
Hickson 54 in Leo 11 29 16 +20 35 04
48” (488, 610 and 813x) – Unresolved glow with resolved individual roughly equally spaced cores in s slightly bent string of 0.8’ long and aligned SW to NE. The NE end is slightly bent northwards. The core of component A is slightly elongated of about 0.2’ across. The other three cores are nearly stellar to stellar. A bright mag 9.6 star lies 4.8’ SW.
Hickson 55 in Draco 11 32 07 +70 48 49
galaxies were well resolved in a curvy line aligned N-S.
Hickson 56 11 32 40 +52 56 29
48” (488 and 610x) – Nice compact group of five galaxies with three members (B, C, D) almost merged together with and edge on located on the east end and a small elliptical on the west end. 2.3’ from end to end.
Component A is a 5:1 considerably faint thin even surface brightness streak. The stellar core seen in my 22” was very difficult to detect, popping in and out about 25% of the time at 610x. 0.7’ long and PA = 0 degrees.
Component B is a 5:2 elongated glow with a brighter small center. Defined edges. The west end very slightly hooks to the north. PA = 60 degrees and 0.5’ long. Almost touching component C to the west.
Component C is a fairly faint round even surface brightness glow with defined edges. 0.5’ west from the center of component B.
Component D is similar in brightness and size with component C, which is just 15” due east.
Component E is also similar to component C and D in size and brightness. Lies 40” SW from component D.
48” (488 and 610x) – Five galaxies seen with a bonus galaxy.
Component A is a very bright round glow with a much brighter center. Defined edges. 0.5’ across.
Component B is a bright round glow with a brighter center. Slightly more diffuse edges than A. 0.3’ across. A dimmer version of A. 2.0’ WSW of component A
Component C is a 3:1 elongated even surface brightness glow with diffuse edges and a stellar core. PA = 90 degrees and 0.6’ long. 1.8’ SE of component A
Component D is a faint amorphous slightly irregular diffuse glow. Even surface brightness. 0.4x0.3’ and PA = 0 degrees. 0.9’ east of component A
Component E is a very faint 2:1 elongated glow with diffuse edges. PA = 45 degrees and 0.2’ long. 2.7’ NW of component A.
The bonus galaxy is just 0.8’ NW of component B and is a very faint round glow. 0.1’ across.
Hickson 63 in Centarus 13 02 10 -32 46 25
48” (488x) –
Component A is a bright 3:1 elongated and slightly mottled glow. Defined edges. PA = 0 degrees and 0.9’ long.
Component B is the reason why I went for this object in the 48” as I wanted to see if I could see the single arm. Bright 2:1 elongated glow with an easily seen arm on the south. Almost stellar core seen. No other detail was seen.
Component C is a fairly bright round glow with somewhat diffuse edges. 0.4’ across and 1.0’ west of component A.
Component D is a faint very small round glow located 0.9’ NW from the core of component B. 0.1’ across.
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