Lobster Claw Nebula

At a glance

Type

Emission nebula (H II region)

Right ascension

23h 16m 03.6s

Declination

+60° 03′

Angular size

90x72′

Catalogue

SH2-157

Also catalogued as

SH2-157, SH 2-157, SH2157

The outline on your card

A curved claw of bright knots and gas at the edge of a large H II complex.

Outline class

Patchy

Axis ratio

0.80 : 1

Central source

Embedded cluster

Surface brightness

Low

Recorded structure

Bright rim · Knots · Dark lane

The card front carries no text by design: the glyph is drawn from this object's own silhouette, so the outline is the only clue you get until you scan it.

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Editorial description pending.

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Observation guide pending.

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