#1  
Old 09-04-2010, 04:24 AM
glenc's Avatar
glenc (Glen)
star-hopper

glenc is offline
 
Join Date: Jun 2005
Location: Terranora
Posts: 4,087
Northern Globulars

I had a look at some northern globular clusters last night with my 12" Dob.
Magnitude 6.2 M3 and mag 7.6 M53 are easy objects.

NGC 5466 is a faint mag 9.0 GC 5.1 degrees east of M3.
M3 is about half way from beta Com to N5466.

NGC 5053 is a very faint mag 9.5 GC 58' from M53. I missed it the first time I swept over it.
M53 and N5053 form a triangle with alpha Com.

Has anyone seen the mag 10.3 GC NGC 4147?

The attached SkyMapPro map shows the northern sky at midnight with south up.
I also looked at the Messier galaxies on the map while I was in the area.
Attached Thumbnails
Click for full-size image (5466 5053.jpg)
68.6 KB11 views

Last edited by glenc; 09-04-2010 at 04:41 AM.
Reply With Quote
  #2  
Old 09-04-2010, 08:23 AM
Lismore Bloke's Avatar
Lismore Bloke (Paul)
Ad astra per aspera

Lismore Bloke is offline
 
Join Date: May 2008
Location: Lismore
Posts: 634
Angry

Some nice targets there Glen. Unfortunately, anything much further north than Saturn is hidden by the house. So, no Leo, Coma, Canes etc. etc.
Reply With Quote
  #3  
Old 09-04-2010, 08:48 AM
Rob_K
Registered User

Rob_K is offline
 
Join Date: Oct 2006
Location: Bright, Vic, Australia
Posts: 2,098
Quote:
Originally Posted by glenc View Post
Has anyone seen the mag 10.3 GC NGC 4147?
Nice report Glen! I've seen 4147 a few times - the only notes I have on it are these:

"Easy to see in 4" tiny bright fuzzy blob, starlike. Seen 15 June 2007"

This would have been at 47x.

Cheers -
Reply With Quote
  #4  
Old 09-04-2010, 10:12 PM
ngcles's Avatar
ngcles
The Observologist

ngcles is offline
 
Join Date: Dec 2006
Location: Billimari, NSW Central West
Posts: 1,543
Ngc 4147

Hi Glen

I have one observation of NGC 4147 made 13 years ago at Mudgee with 25cm:

x86 34' TF. x138 21' TF Mag 10.2 Size 3.9'. Quite a small cluster of moderately low central condensation class, in the SW outer halo is a mag 13.5 *. With A.V it seems grannulated slightly and there seems the odd sparkly point in the outer halo, 2' diameter with broad moderate concentration to the centre.

Have always been intruiged that there are 3 GCs so close to the Northern Galactic pole. Here is my note using 46cm of M53:

x139 35' TF
x185 27' TF

M 53 NGC 5024 Globular Cluster *
RA: 13h 12m 55.3s Dec: +18 10' 09"
Mag: 7.7 Mag V(tip): 13.8 Mag V(HB): 16.9 B-V (tip): ---
Size: 13.0' Class: R.V.: --- Source: Archinal *

This is a very nice GC that is reasonably resolved -- in better seeing more resolution would be apparent I'm sure. A bit better with the 12mm TII. The whole object is probably 10-11' diameter, round rising strongly and broadly to centre est cc 6, without zones, The central blaze is probably 3-3.5' diameter. Most of the resolved stars are in the outliers, the brightest at about mag 13.5, with at least 50 if not 100 stars visible. A very attractive cluster.


Best,

Les D
Reply With Quote
  #5  
Old 10-04-2010, 01:14 AM
glenc's Avatar
glenc (Glen)
star-hopper

glenc is offline
 
Join Date: Jun 2005
Location: Terranora
Posts: 4,087
Thanks Paul, Rob & Les.
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 06:22 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
NexDome Observatories
Advertisement
SkyWatcher Australia
Advertisement
Meade Australia
Advertisement
Bintel
Advertisement
OzScopes Authorised Dealer
Advertisement
Celestron Australia
Advertisement
Lunatico Astronomical
Advertisement
Astronomy and Electronics Centre
Advertisement