sponsored by psychohistorian.org

DOCdb

Deep Sky Observer's Companion – the online database

 

Welcome, guest!

If you've already registered, please log in,

or register an observer profile for added functionality.

List:

log in to manage your observing lists

 browse:

 

 position:

 

 next:

 

 options:

summary

rename

prune

trim

remove

close

copy

combine

plan

bookmark

load

new

delete

marathon

favourite!

Full database:

Entire DOCdb database of 18,816 objects.

 browse:

 position:

ESO 172-7 (10,175 of 18,816)

 next:

oc gc pln bn dn gx gxcl ast aka lost

Object:

list

bookmark

finder chart

altitude today

altitude (year)

 search:

½°, , in DOCdb


Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/yivumoo/public_html/show_object.php on line 167

show browsing

Boomerang Nebula

ESO 172-7, Magakian 587, LEDA 3074547, Centaurus Bipolar Nebula, Boomerang Nebula

RA: 12h 44m 45.45s
Dec: −54° 31′ 11.4″

Con: Centaurus
Ch: MSA:973, U2:429, SA:25

Ref: SIMBAD, [2003A&A...399..141M]

(reference key)

Type: reflection nebula

Mag: B=?, V=?

Size: 1.445′ x 0.724′
PA: ?

Published comments

Magakian T. Yu. (2003)

= GN 12.41.9, Other designations: Boomerang

Class: CN (cometary nebula)

Contemporary observations

Magda Streicher

2006 July 27

Alldays

12-inch f/10 SCT (95x, 218x, 346x)

I had to go back and only had success after the second night trying to observed this small, very faint object. First impression appears just like a small-elongated galaxy. I estimate this elongated nebula N-S just about 1' in size. It appears with careful observation like two out of focus 11Magnitude stars closely on top of one another. The double lobbed nebula appears even in brightness except for a small broken middle area. Very difficult and need a lot of patients and skill to observed.

Richard Ford

2013 April, 14th Sunday

Location:Perdeberg.

Time:1:10am.

Sky Conditions:The fainter parts of the Milky Way are barely visible.Haziness only visible on the horizon.Atmsophere stable with little interference.

Instrument:12-inch Dobsonian.

This planetary nebula has the shape of a tiny minute bow tie with its two faint nodes which are extremely faint and that they are seen as soft pale glows of grayish light which are are just on the brink of visibiiity at 167x.This planetary nebula measures 1'x 0.7'.

Favourite lists

Lacaille's catalogue

The Messier objects

Dunlop's catalogue

The Bennett objects

The Caldwell list

Named DSOs

Object search

First search phrase

    and

Second search phrase

Type of object to include:

open cluster
globular cluster
planetary nebula
bright nebula
dark nebula
galaxy
galaxy cluster
asterism & stars
unverified/lost
nova

The Bug Report

DOCdb is still in beta-release.

Known issues, feature requests, and updates on bug fixes, are here:

> Bug Report

Feedback

Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!

> Contact us

Help!

DOCdb is a free online resource that exists to promote deep sky observing.

You could help by sharing your observations, writing an article, digitizing and proof-reading historical material, and more.

> Find out more

Everything on DOCdb.net is © 2004-2010 by Auke Slotegraaf, unless stated otherwise or if you can prove you have divine permission to use it. Before using material published here, please consult the Creative Commons Attribution-Non-Commercial-Share Alike 2.5 License. Some material on DOCdb is copyright the individual authors. If in doubt, don't reproduce. And that goes for having children, too. Please note that the recommended browser for DOCdb is Firefox 3.x. You may also get good results with K-Meleon. Good luck if you're using IE. A successful experience with other browsers, including Opera and Safari, may vary.