Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  M 32  ·  NGC 221
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M32  Galaxy / Vintage Meade DSI CCD on 12" Dobson, Wanni
M32  Galaxy / Vintage Meade DSI CCD on 12" Dobson
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M32 Galaxy / Vintage Meade DSI CCD on 12" Dobson

Getting plate-solving status, please wait...
M32  Galaxy / Vintage Meade DSI CCD on 12" Dobson, Wanni
M32  Galaxy / Vintage Meade DSI CCD on 12" Dobson
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M32 Galaxy / Vintage Meade DSI CCD on 12" Dobson

Equipment

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Description

Testing my old MEADE CCD camera on the 12" Dobson.

The Meade DSI PRO II CCD imager was state of the art in 2006.

This cam is very sensitive and normally used as my guiding cam.

Pixel size : 8.3 x 8.6 micrometer. 16 bit A/D

Good fit to 1500 mm focal length: no under-sampling (factor 1.16)

Advantage : very short exposure times, tracking errors of the DOBSON not an issue.

Disadvantage : small FOV : 752 * 582 pixel

The MEADE Envisage software does "live stacking" including drizzle and dark subtraction!

Field-rotation is software based compensated.

The image above is almost the raw image after stacking, I only resampled it to double size.

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M32  Galaxy / Vintage Meade DSI CCD on 12" Dobson, Wanni

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Astrophotography with Dobson