Kepler's Supernova Remnant

At a glance

Type

Supernova remnant

Right ascension

17h 30m 42.0s

Declination

−21° 29′

Angular size

3x3′

Catalogue

G004.5+06.8

Also catalogued as

G004.5+06.8, G004.5+06.8, G004.5+06.8

The outline on your card

A nearly spherical shell with bright knots, the remnant of the 1604 supernova.

Outline class

Ring

Axis ratio

1.00 : 1

Central source

No central source

Surface brightness

High

Recorded structure

Shell · Filaments · Knots

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.