Celestial hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  HD21060  ·  HD21108  ·  PK149-09.1
Hartl-Dengel-Weinberger 3, Alpha Zhang
Hartl-Dengel-Weinberger 3, Alpha Zhang

Hartl-Dengel-Weinberger 3

Hartl-Dengel-Weinberger 3, Alpha Zhang
Hartl-Dengel-Weinberger 3, Alpha Zhang

Hartl-Dengel-Weinberger 3

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Description

I am honored to quote my friend GaryImm's explanation and link:

This object, known as Hartl-Dengel-Weinberger 3 (HDW 3), PK149.09-1, and PN G149.4-09.2, is a dim ancient planetary nebula located 3000 light years away in the constellation of Perseus at a declination of +45 degrees.  It is a magnitude 17 PN which spans 13 arc-minutes in our apparent view.  This corresponds to a diameter of 11 light years.
<Link: https://www.astrobin.com/au9ebh/>

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