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Arp 123 Galaxies

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#1 Raul Leon

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Posted 16 February 2020 - 10:30 AM

Ngc 1888 and Ngc 1889 aka Arp 123 are galaxies in Lepus; magnitudes: 11.7 and13.1 ; Ngc 1888 is elongated and rather faint, I did not observe any features ; Ngc 1889 is round, rather faint and also featureless; both galaxies appear to touch, I did not see any space between them. The night of this observation the seeing was not great, so I will try to revisit again soon to see if I can get a better look. I used an 8mm Ethos at 198x with my 14.5 Starstructure Dob f/4.3

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#2 frank5817

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Posted 16 February 2020 - 11:55 AM

Raul,

 

Very impressive sketch of that galaxy pair..

 

Frank :)



#3 Ivan Maly

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Posted 16 February 2020 - 11:12 PM

Great view! I have these notes from five years ago (NGC 1889 historically is not attributed to W. Herschel - one of the many cases where the original discovery was reduced in the GC and NGC to a part of the originally described object):

 

Herschel's description [of NGC 1888] is "triangular", indicative of a merged image with the companion [NGC 1889]. Agree with H. S end is brighter, hence the triangular appearance, although at high power fully resolved.

 

12", Cherry Springs, 125-375x.



#4 niteskystargazer

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Posted 17 February 2020 - 03:22 PM

Raul,

 

nice sketch of Arp 123 Galaxies smile.gif .

 

CS,KLU,

 

thanx.gif ,

 

Tom



#5 Asbytec

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Posted 20 February 2020 - 10:47 PM

Raul, wish I could join you on some of these Arp galaxies. Maybe I should at least try one. They look tough. In Lepus at mag 12? Maybe I could give this one a go. smile.gif


Edited by Asbytec, 20 February 2020 - 10:50 PM.


#6 Asbytec

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Posted 21 February 2020 - 09:05 AM

Raul, inspired by you and Ivan, I went after Arp 123. Success!

I was not sure what to expect except they are probably difficult. Surprisingly, I did manage to see the faint sliver of NGC 1888 fairly easily at 300x (!) oriented pretty much north to south. It took magnification well and needed it being pretty small.

Try a bit more magnification. I could not see it well at 200x, not at all at 100x and less. I was kind of shocked when I reached for my 5x focal extender and it worked. :)

I was able to "guess" correctly where NGC 1889 was located to the east. A couple of faint specks seen at their location, I suspect they /may have been/ stellar cores, at least one in NGC 1889. I think so, anyway.

Edited by Asbytec, 21 February 2020 - 09:05 AM.


#7 Astro-Master

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Posted 09 March 2020 - 11:56 PM

Raul,

 

Nice job on Arp 123,  Its such a cool looking pair, I always though it looked like a flying saucer in my scope.

 

Bruce




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