A Space & astronomy forum. SpaceBanter.com

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » SpaceBanter.com forum » Others » Astro Pictures
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

ASTRO: Abell 81 the northern most Abell planetary nebula



 
 
Thread Tools Display Modes
  #1  
Old February 28th 14, 06:04 AM posted to alt.binaries.pictures.astro
Rick Johnson[_2_]
external usenet poster
 
Posts: 3,085
Default ASTRO: Abell 81 the northern most Abell planetary nebula

IC 1454/Abell 81 is the northernmost of the Abell planetary nebula
located in Cepheus only 9.56 degrees from the pole. There's a wide
range of distance values for this one. I'll go with the one at
http://www.astronomy-mall.com/Advent...e/abellcat.htm
which puts it a bit over 17,000 light-years away.

It is about 38" of arc across. Catalogs list it at 14 and 15th
magnitude with an 18.8 magnitude central star. Other than this I can't
find much on it. Even less on the field. Only a few of the galaxies
are in NED, none have much data let alone redshift data. Thus I didn't
prepare an annotated image. This lack of data is common for far
northern objects.

14" LX 200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME

Rick
--
Prefix is correct. Domain is arvig dot net

Attached Thumbnails
Click image for larger version

Name:	IC1454L4X10RGB2X10.JPG
Views:	308
Size:	309.3 KB
ID:	5006  Click image for larger version

Name:	IC1454L4X10RGB2X10CROP125.JPG
Views:	172
Size:	124.3 KB
ID:	5007  
Ads
  #2  
Old February 28th 14, 07:58 PM posted to alt.binaries.pictures.astro
Rick Johnson[_2_]
external usenet poster
 
Posts: 3,085
Default ASTRO: Abell 81 the northern most Abell planetary nebula

I grabbed the wrong link. The one for distance is:
http://cdsads.u-strasbg.fr/cgi-bin/n...osetcook ie=1

The included one is a listing of all Abell "planetary" nebula. Quotes
because a few turned out to be something else.

Rick
__________

On 2/28/2014 12:04 AM, Rick Johnson wrote:
IC 1454/Abell 81 is the northernmost of the Abell planetary nebula
located in Cepheus only 9.56 degrees from the pole. There's a wide
range of distance values for this one. I'll go with the one at
http://www.astronomy-mall.com/Advent...e/abellcat.htm
which puts it a bit over 17,000 light-years away.

It is about 38" of arc across. Catalogs list it at 14 and 15th
magnitude with an 18.8 magnitude central star. Other than this I can't
find much on it. Even less on the field. Only a few of the galaxies
are in NED, none have much data let alone redshift data. Thus I didn't
prepare an annotated image. This lack of data is common for far
northern objects.

14" LX 200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME

Rick



--
Prefix is correct. Domain is arvig dot net
  #3  
Old March 3rd 14, 07:25 PM posted to alt.binaries.pictures.astro
Stefan Lilge
external usenet poster
 
Posts: 2,269
Default ASTRO: Abell 81 the northern most Abell planetary nebula

Rick,

that's a neat little ring with some nice structure. It is on my list, maybe
next summer...

Stefan

"Rick Johnson" schrieb im Newsbeitrag
...

IC 1454/Abell 81 is the northernmost of the Abell planetary nebula
located in Cepheus only 9.56 degrees from the pole. There's a wide
range of distance values for this one. I'll go with the one at
http://www.astronomy-mall.com/Advent...e/abellcat.htm
which puts it a bit over 17,000 light-years away.

It is about 38" of arc across. Catalogs list it at 14 and 15th
magnitude with an 18.8 magnitude central star. Other than this I can't
find much on it. Even less on the field. Only a few of the galaxies
are in NED, none have much data let alone redshift data. Thus I didn't
prepare an annotated image. This lack of data is common for far
northern objects.

14" LX 200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME

Rick
--
Prefix is correct. Domain is arvig dot net

 




Thread Tools
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
ASTRO: PN ABELL 70 Rick Johnson[_2_] Astro Pictures 0 May 7th 13 08:05 AM
ASTRO: Abell 61 Rick Johnson[_2_] Astro Pictures 0 August 10th 12 07:25 AM
Abell 39 - Planetary Nebula in Hercules Anthony Ayiomamitis[_1_] Amateur Astronomy 3 July 6th 11 10:46 PM
New Hickson and New Abell Planetary Observing Guides Shneor Amateur Astronomy 0 August 23rd 05 03:05 AM
Abell Planetary Nebulae and NGC numbers Anthony Ayiomamitis Amateur Astronomy 6 January 19th 05 07:10 PM


All times are GMT +1. The time now is 01:20 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2004-2018 SpaceBanter.com.
The comments are property of their posters.