Abell 21 – Medusa Nebula

Planetary nebula located in the constellation of Gemini.

Data captured on December 2019 from Belmonte, Cuenca (Spain).
Meade R8 203/1000. Canon 550D mod. EQ6-R Pro
Lights: 23×900″
Darks: 17×900″
Flats: 30
Bias: 400
ISO 1600. 5ºC

Total integration time: 5h45´

Autore: Alejandro López