Barnard's Loop

At a glance

Type

Emission nebula (H II region)

Right ascension

5h 27m 28.1s

Declination

−3° 58′

Angular size

1200x264′

Catalogue

SH2-276

Also catalogued as

SH2-276, SH 2-276, SH2276

The outline on your card

A huge faint loop of emission arcing across Orion, the near side of a superbubble.

Outline class

Filament

Axis ratio

0.22 : 1

Central source

No central source

Surface brightness

Low

Recorded structure

Filaments · Bright rim

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.

What did you just see?

Editorial description pending.

Find it in the sky

Observation guide pending.

Go deeper

Story pending.