#1  
Old 23-03-2010, 02:38 PM
Outbackmanyep's Avatar
Outbackmanyep
Registered User

Outbackmanyep is offline
 
Join Date: Oct 2006
Location: Walcha , NSW
Posts: 1,652
Comet Obs 17th to 20th March 2010

Comet Observations 17th to 20th March 2010

29P/ Schwassmann-Wachmann


2010 March 17.41 UT; m1= 11.4; Dia= 5.1’; DC= 2; 25cm L, f:5 (x39)
No tail, coma diffuse, close to bright star.
Comp Star= TYC 826-901-1; Method= S; Cat= TJ


2010 March 18.44 UT; m1= 11.1; Dia= 6.4’; DC= 1/2; 25cm L, f:5 (x39)
No tail, coma appears circular, faint diffuse edge that gradually brightens toward the centre.
Comp Star= TYC 825-736-1; Method= S; Cat= TJ

2010 March 19.50 UT; m1= 11.9; Dia= 5.4’; DC= 1; 20cm T, f:6 (x39)
No tail.
Comp Star= GSC-0825-0404; Method= S; Cat= HS

81P/ Wild 2


2010 March 18.69 UT; m1= 9.5; Dia= 5.3’; DC= 5; 25cm L, f:5 (x39)
Broad tail in PA 270, 19’ in length using averted vision, 7’ visible direct, inner coma slightly elongated WNW to ESE.
Comp Star= TYC 4892-238-1; Method= S; Cat= TJ

2010 March 19.51 UT; m1= 9.3; Dia= 5.4’; DC= 5/6; 20cm T, f:6 (x39)
Tail to West (PA 270), 38’ in length using averted vision.
Comp Star= TYC 4982-184-1; Method= S; Cat= TJ

C/2009 K5 McNaught


2010 March 18.72 UT; m1= 8.9; Dia= 5’; DC= 5; 25cm L, f:5 (x39)
Coma circular, no tail, background star in coma.
Comp Star= TYC 1042-2041-1; Method= S; Cat= TJ

2010 March 19.73 UT; m1= 8.2; Dia= 5.8’; DC= 5; 20cm T, f:6 (x39)
No tail, coma slightly elongated to SW.
Comp Star= TYC 1046-380-1; Method= S; Cat= TJ

65P/ Gunn


2010 March 18.74 UT; m1= 13.8; Dia= 0.75’; DC= 1/2; 25cm L, f:5 (x139)
No tail, very diffuse, visible using averted vision.
Comp Star= GSC-6893-0637; Method= S; Cat= HS

Cheers!
Reply With Quote
  #2  
Old 24-03-2010, 03:59 PM
ngcles's Avatar
ngcles
The Observologist

ngcles is offline
 
Join Date: Dec 2006
Location: Billimari, NSW Central West
Posts: 1,570
81P/Wild

Hi Chris,

Thanks for the heads up mate -- 81P/Wild seems like an inviting target at the moment with a bit of a tail. Well placed as well -- not too early in the morning ...

I've just noticed 81P/Wild will make a fairly close pass to the small 11th magnitude eg NGC 5493 around the 17th April -- only about 10 arc-mins in it. Could be interesting to image or view on or around that date.

NGC 5493 Galaxy *
RA: 14h 11m 29.4s Dec: -05 02' 35"
Mag: 12.3 (B) S.B.: --- B-V: +0.87 Size: 1.6'x1.2'
Class: S0 pec sp P.A.: 120 Inclination: --- R.V.: +2627 Source: RC3 *

You can download an ephemeris for 81P/Wild2 here:

http://www.cfa.harvard.edu/iau/Ephem...ets/0081P.html

For those of you who didn't know, 81P/Wild2 was the comet subject of the "Stardust" mission:

http://en.wikipedia.org/wiki/Stardust_(spacecraft)



Best,

Les D
Reply With Quote
  #3  
Old 26-03-2010, 03:21 PM
Outbackmanyep's Avatar
Outbackmanyep
Registered User

Outbackmanyep is offline
 
Join Date: Oct 2006
Location: Walcha , NSW
Posts: 1,652
Hi Les!
Thanks for the heads up on the info, i will try for the rendezvous, i have a list from Seiichi Yoshida's page for rendezvous which is pretty extensive.
Its a wonderful comet 81P, also note K5 McNaught and W3 Christensen which are still "bright", my last obs of K5 i made it out at mag 8.5!
You should check it out!

Cheers!
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 11:33 AM.

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