Thor's Helmet

At a glance

Type

Emission nebula (H II region)

Constellation

CMa

Right ascension

7h 18m 31.0s

Declination

−13° 14′

Angular size

10x5′

Catalogue

NGC2359

Located in Canis Major.

The outline on your card

An arcing wind-blown shell around a Wolf-Rayet star, resembling a winged helm.

Outline class

Swept arc

Axis ratio

0.50 : 1

Central source

Single central star

Surface brightness

Medium

Recorded structure

Shell · Filaments · Bright rim · Cavity

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.