NGC 891

Galaxy in Andromeda
Magnitude: 9.9 (14.0 '²)
Size: 13.1'x2.8'


bad focus/guiding compared to the 2001 image...

 Date

2004-01-25

 Location

Ebenwaldhöhe
Condition
-15°C

CCD/Film

SBIG ST-237A

 Exposure Time

LRGB 20:15:15:15

 Optics

Optolyth 100/700mm APO

 effective F.L.

 700mm (f/7)
Mount
Losmandy G-11
Controller

Boxdörfer MTS3-SDI

Guiding

Vixen 60/700 guidescope + SBIG ST-4

 

 Date

2001-11-17

 Location

Hohe Wand
Condition
-4°C, 80%RH

CCD/Film

SBIG ST-237A

 Exposure Time

 16 minutes

 Optics

Optolyth 100/700mm APO

 effective F.L.

 700mm (f/7)
Mount
Losmandy G-11
Controller

Boxdörfer MTS3-SDI

Guiding

Vixen 60/700 guidescope + SBIG ST-4



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