Medusa Nebula

At a glance

Type

Planetary nebula

Right ascension

7h 29m 02.9s

Declination

+13° 15′

Angular size

10.3x2.3′

Catalogue

A21

Also catalogued as

A21, ABELL21, A 21, ABELL 21

The outline on your card

A large, faint planetary whose many filaments resemble the snakes of Medusa's hair.

Outline class

Filament

Axis ratio

0.22 : 1

Central source

Single central star

Surface brightness

Low

Recorded structure

Filaments · Bipolar outflow

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.