Crim­son burst

Sky at Night Magazine - - EYE ON THE SKY -

VERY LARGE TELE­SCOPE, 8 JULY 2019

Abell 24 is a red-hued plan­e­tary nebula lo­cated in the con­stel­la­tion of Ca­nis Mi­nor. De­spite its name, this type of nebula has noth­ing to do with plan­ets. The term was coined by Wil­liam Her­schel in the 1780s, dur­ing a time of low-res­o­lu­tion as­tron­omy, when it was very hard to dif­fer­en­ti­ate neb­u­lae from plan­ets.

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