M82 Galaxy

Object name: M82 Ursa Major A
Popular name: Ursa Major A
Object type: Galaxy
Magnitude: 9.2
Size: 11.2 4.3
Position angle: 6
Classification: Sd
Apparent RA: 09 55 54.0 Apparent Dec: +69 40 59
Constellation: Ursa Major

This was the last image of the evening. M82 was very high in the sky by this stage. I've pushed this picture quite far to try and draw out a little of the fainter outer regions of this irregular galaxy. However, as this detail is very dim, the image looks a little false. However, the core details are still good. Ended up with a very faint guidestar which resulted in some poor tracking. Mind you, still not bad for a bunch of 5 minute exposures.

I return to this target very regularly. My best image with the SC3 shows slightly better tracking and core detail, but less extension of the galaxy. I think it would be interesting to see what 82x26s frames with the artemis comes out like.

On a brighter note, this is an improvement on my last Artemis image of M82 taken during a bright Moon.

Captured with 1x1 binning in ArtemisCapture. Calibrated and stacked in Maxim. Combination of DDP in maxim and curves and unsharp mask in photoshop used to produce final image.

This image was autoguided using my 400mm focal length refractor and my black and white SC1 webcam.

Exposure Details :

7x300s on 200mm @ F5 with ART285

Curdridge Observatory, Southampton,UK