Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

Nyctimene

18" going Arp in Andromeda and Aries

Recommended Posts

The old limetree still was hiding the constellation of Aries, my planned target, when I started somewhat earlier observing at 0.50 CEST; conditions sub-average, NELM 4.8 to 5.0, SQM-L 20.95. A marker I had put in the Interstellarum Deep Sky Atlas a year ago pointed me to an already accessible galaxy group, Arp 113, 2° NE of Alpha Andromedae, thus easy to find. Using higher mags (250x with Hyperion zoom; 341x with a 6 mm Ortho), and guided by Skysafari, I was able to make out it's four brightest members, NGC 70 (14.3 mag), 71 (13.4 mag), 68 (14.4 mag) and 72 (13.6 mag), arranged in a crooked "Y"-pattern. Some fainter galaxies could not be made out clearly, as the field was intermingled with stars, that SkySafari didn't show; and I had no photo at hand. But the group is well worth a second visit under better conditions. Meanwhile Aries had risen, so I went over to the next target, Arp 78, with the brighter member named "Fiddlehead Galaxy" in the IsDSA. 772 was with 10.5 mag easy to see, E-W oriented, with a brighter core region, it's smaller partner, 770, just SW, was with 14.1 much fainter, but still directly visible with a stellar nucleus. The next target was the group around 680 (11,9 mag, round, bright core) with the oblong 678;  691accompanied by a nice double star, and the spindle of 697; all visible with direct vision. Looking with lower mag at a brighter star, I was annoyed, as the dob's collimation seemed to have suffered with some astigmatism. But SkySafari informed me, that I was looking at 1 Arietis, a nice double star with 5.8 resp.7.2 mags, 2.8" distant. I recalled a similar report on Ras Algethi here a few days ago. So I've finally added another double to my list, as intended. Pleased and so to bed.

Two pictures added (from the net):

Arp 113

image.png.fe1d3cbe42ddb7d3d4f89650b1a542c4.png

Arp 78

image.png.354c8ce623fbe947c5a6e38af4304fbd.png

Thanks for reading

Stephan

 

Edited by Nyctimene
  • Like 18

Share this post


Link to post
Share on other sites

That 113 group is one of my favourites...

Stunning.

Mark

Edited by mdstuart
  • Like 1

Share this post


Link to post
Share on other sites

Nice report of some fascinating galaxy groups. Will have to track these down with my EAA setup. ?

  • Like 1

Share this post


Link to post
Share on other sites

Superb images Stephan!

I bought a copy of  The Arp Atlas of Peculiar Galaxies a few months ago following a lecture on these, and it is a beautiful and fascinating book full of good information. 

  • Like 1

Share this post


Link to post
Share on other sites

Very Nice Indeed.. thanks for sharing!

  • Like 1

Share this post


Link to post
Share on other sites
16 hours ago, Saganite said:

Superb images Stephan!

I bought a copy of  The Arp Atlas of Peculiar Galaxies a few months ago following a lecture on these, and it is a beautiful and fascinating book full of good information. 

I have the same book,fantastic isn't it. Lovely report Stephen thank you for wetting my appetite for the next session, clear skies 

  • Like 1

Share this post


Link to post
Share on other sites
On 23/08/2018 at 15:56, Saganite said:

Superb images Stephan!

Not my own images (I'm purely visual); I forgot to mention that they are from the net; sorry!

I've corrected it now.

Stephan

Edited by Nyctimene

Share this post


Link to post
Share on other sites

Great report, Stephan. I’ve never really gone after the tight Arp groups but I don’t know why - whenever I see multiple galaxies in one field of view I’m always stunned. I think Arps might make an interesting next project.

  • Like 2

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.