Celestial hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  123 Tau)  ·  M 1  ·  NGC 1952  ·  The star 121 Tau  ·  The star Tianguan (ζ Tau
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Sharpless 2-243/244. OK, the Crab Nebula in narrowband, David Elmore
Sharpless 2-243/244. OK, the Crab Nebula in narrowband
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Sharpless 2-243/244. OK, the Crab Nebula in narrowband

Getting plate-solving status, please wait...
Sharpless 2-243/244. OK, the Crab Nebula in narrowband, David Elmore
Sharpless 2-243/244. OK, the Crab Nebula in narrowband
Powered byPixInsight

Sharpless 2-243/244. OK, the Crab Nebula in narrowband

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Description

In the quest for ever smaller Sharpless objects Sh2-243 appeared on the list.  Next door is another small Sharpless object, 244, but very much better known M1, the Crab Nebula.
Narrowband H-alpha as red, Sulphur II as yellow, Oxygen III as Teal.

The Crab Nebula is a super nova remnant from 1054, 6500 ly distant, and about 11 ly across.  There is a rapidly rotating neutron star (pulsar) at its center.

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Sharpless 2-243/244. OK, the Crab Nebula in narrowband, David Elmore