Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  PGC 168326  ·  PK138+04.1  ·  Sh2-200
Sh2-200 / HDW2 Bearclaw Nebula - HOO, Jerry Macon
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Sh2-200 / HDW2 Bearclaw Nebula - HOO

Sh2-200 / HDW2 Bearclaw Nebula - HOO, Jerry Macon
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Sh2-200 / HDW2 Bearclaw Nebula - HOO

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Description

Imaged on nights of 9/23/2018, 9/27/2018, 9/28/2018, 9/29/2018, 11/5/2018, 11/6/2018.

Sharpless 2-200, also known as HDW 2 (Hartl-Dengl-Weinberger 2), commonly called the "Bearclaw nebula", is a quite old planetary nebula (PN) in the constellation Cassiopeia.

According to W. A. Weidmann and R. Gamen, who have examined the central stars of different PNs, the central star of HDW 2 is a binary star.

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Sh2-200 / HDW2 Bearclaw Nebula - HOO, Jerry Macon

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Planetary Nebulae