Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

21P/Giacobini-Zinner - an easy observable comet (10 mag)

  • Please log in to reply
8 replies to this topic

#1 Uwe Pilz

Uwe Pilz

    Vanguard

  • *****
  • Moderators
  • topic starter
  • Posts: 2480
  • Joined: 16 May 2008
  • Loc: Leipzig, Germany

Posted 08 July 2018 - 07:31 AM

Dear observers,

 

I always write the comet's corner for our German magazine "Sterne und Weltraum" (stars and space). For some time in the past I had to give the estimations of 21P on base of the last apparitions: These were way to bright. The comet developed slower than expected. But now, it has become an real rewarding object.

I obserserved it form a rural site wit my 12 inch Dobsonian and found a well condensed, quite large (4') nebula with hint of a tail. I saw a stellar condensation. If weren't lucky withC/2017 S3, try this one: It is high in the sky and in the near of the milky way, a prominent surroundings. I nearly cressed the North America Nebula some weeks ago, but it was very weak at this time. 

 

North is up in my sketch.

Attached Thumbnails

  • 180707230021P_Ninja_80.jpg

  • Special Ed, Hubert, Jef De Wit and 9 others like this

#2 niteskystargazer

niteskystargazer

    Fly Me to the Moon

  • *****
  • Posts: 6192
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 08 July 2018 - 10:11 AM

Uwe,

 

Nice sketch of  21P/Giacobini-Zinner - an easy observable comet (10 mag) smile.gif ,

 

CS,KLU,

 

thanx.gif ,

 

Tom



#3 frank5817

frank5817

    Voyager 1

  • *****
  • Posts: 11655
  • Joined: 13 Jun 2006
  • Loc: Arizona

Posted 08 July 2018 - 03:21 PM

Uwe,

 

Nice sketch of 21P/Giacoboni-Zinner.

If it clears here late tonight I'll take a look.

 

Frank :)



#4 Special Ed

Special Ed

    Cosmos

  • *****
  • Posts: 9722
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 08 July 2018 - 03:35 PM

Good observation and sketch, Uwe.  Thanks for the heads up on this comet.  smile.gif 



#5 iainp

iainp

    Apollo

  • -----
  • Posts: 1111
  • Joined: 24 Feb 2014
  • Loc: St Neots, Cambridgeshire, UK

Posted 12 July 2018 - 11:47 PM

Thanks Uwe, I've put this at the top of the observing list!



#6 Special Ed

Special Ed

    Cosmos

  • *****
  • Posts: 9722
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 13 July 2018 - 08:35 AM

I tried for it Thursday morning ~0400 UT with my 120mm f/5 refractor @ 75x but could not see it even though I was right on it according to my chart.  Transparency was below average.   Will try again.  

 

I starhopped from Herschel's Garnet Star, so I got to see that.  :)



#7 Aquarellia

Aquarellia

    Mercury-Atlas

  • *****
  • Posts: 2602
  • Joined: 27 Oct 2012
  • Loc: Artignosc, Provence, France

Posted 13 July 2018 - 10:31 AM

Thank you Uwe for this post

Here's my last observation of this nice little comet, I fully agree with the Uwe's observation.

 

20180708-21P_l.jpg

 

The sky was very dark (SQM 21.98 !), with my 12" Dobson that was easy to detect.

Michel


  • Special Ed, rerun, niteskystargazer and 1 other like this

#8 Uwe Pilz

Uwe Pilz

    Vanguard

  • *****
  • Moderators
  • topic starter
  • Posts: 2480
  • Joined: 16 May 2008
  • Loc: Leipzig, Germany

Posted 13 July 2018 - 11:42 AM

>  SQM 21.98

 

Wow!



#9 Special Ed

Special Ed

    Cosmos

  • *****
  • Posts: 9722
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 14 July 2018 - 08:53 AM

Tried again last night--no joy.  Maybe my 120mm refractor doesn't have enough aperture...  I could only go to 75x and transparency was about average.




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics