NGC2805   HOLMBERG 124

TSC225 (1990)  tube carbone @ F/7.15 soit 1609mm de focale, réducteur 0.63X soit 1.15" asp ( pixels de 9µ)

Caméra CDD SBIG ST8 XME @ -30°C

NJP 160

L: 18 X 10mn B 1X1

R: 28 X 5mn B 2X2

G: 28 X 5mn B 2X2

B: 28 X 5mn B 2X2


3 heures en L le 17/02/2018

RGB  les 22 et 23/02/2018 en présence de la lune.




lissage du fdc

- intensité: 10

- détails 50%

- calque à 30%



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