Gem A

Scientific overview

Gem A is a supernova remnant in the constellation Gemini. It shines at apparent magnitude 12 and spans about 50 arcminutes of sky.

Observation guide

Guidance follows standard observing practice, derived from the object's real magnitude and position. A dark, moonless sky always helps.

Location in the sky

Other objects in Gemini

Sources

Facts on this topic will be cited from these primary and reference sources.

• OpenNGCOpenNGC (M. Verga) — NGC/IC, Messier, and Caldwell catalogue data

  Openly-licensed deep-sky catalogue: object types, positions, magnitudes, sizes, morphology, and cross-identifiers.