Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  LBN 674  ·  PK138+04.1  ·  Sh2-200
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Sh2-200 - HDW 2 - Bearclaw Nebula (HOO), Elvie1
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Sh2-200 - HDW 2 - Bearclaw Nebula (HOO)

Getting plate-solving status, please wait...
Sh2-200 - HDW 2 - Bearclaw Nebula (HOO), Elvie1
Powered byPixInsight

Sh2-200 - HDW 2 - Bearclaw Nebula (HOO)

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Description

SH2-200 - HDW 2 - The Bearclaw Nebula (HOO)

Ancient Planetary Nebula in Constellation Cassiopeia. Originally -1959, classified by Sharpless as a nebula, later - 1983, as a possible HDW ( Hartl,  Dengel,  Weinberger) Planetary Nebula, and confirmed as such in 2017.

Central ‘claw’ structure stronger in OIII with lesser Ha, surrounded by a fainter disconnected ring of Ha.  Not a lot of detail or variation in the nebula so processing was mostly just masks and curves.

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Sh2-200 - HDW 2 - Bearclaw Nebula (HOO), Elvie1