AstroBinAstroBin

Gary Imm

GaryI

About

A backyard amateur astrophotographer enjoying retirement with my wife on beautiful Lake Livingston in Onalaska, Texas, about 90 minutes north of Houston.

(read more)

Stats

Member since
...

Last seen online
...

Total integration time
10562.5 hours

Average integration time
4.8 hours

Forum posts written
113

Comments written
41969

Comments received
60787

Likes received
270583

Views received
775844

Owl-Type PN A collection by Gary Imm

At first, these nebulae appear to be bi-polar, like most pN. But examining their disks carefully, it seems likely that the Owl-type PNe have spherical shapes - they are almost exactly circular in shape and uniform in brightness, with no strong brightening near the rim. The dark void areas are what trick us, in terms of creating a “bi-polar” look. Scientists still do not understand the cause of the bi-polar look to the dark voids.

Images in this collection Parent collection:  PN Types

×

Warning!

This operation will reload the current page. If you have any unsaved information in a form, it will be lost.

You can also dismiss this window, and your operation will be applied at the next page navigation.