[AZ-Observing] Re: Observation Report from Friday Night, July 20

At 11:23 AM 7/22/01 -0700, Chris Adamson wrote:

>One question from this session that maybe Tom or someone can answer.  Night
>Sky Observers Guide (and my observational guess, see below) show NGC6857 as
>an Emission Nebula that looks like a planetary.  Both the Sky, the Lorenzin
>DB and the EVAC 200 list call it a planetary.  What is it?



NGC 6857 is an emission nebula that looks like a planetary nebula.  You can
read all about by filling in Astrophysical Journal volume 157, page L41 on
the form at:

http://adsabs.harvard.edu/article_service.html

This is a 1969 paper.  The abstract, first, and last paragraphs should be
enough to get the idea.

My notes call it a faint, round disc, with a diffuse edge surrounding a
central star, which sure reads like a description for a planetary nebula.

Tom 


---

Tom Polakis
Tempe, AZ
Arizona Sky Pages
http://www.psiaz.com/polakis/
---
This message is from the AZ-Observing mailing list.  If you wish to be
removed from this list, send E-mail to: AZ-Observing-request@xxxxxxxxxxxxx,
with the subject: unsubscribe.

The list's archive is at:  http://www.freelists.org/archives/az-observing

This is a discussion list.  Please send personal inquiries directly to
the message author.  In other words, do not use "reply" for personal
messages.  Thanks.

Other related posts: