My attempts at astro imaging

Posts tagged “NGC891

First of the new season – NGC891

This is the first image from the winter 2016 season – I swapped over to my SCT, so am now imaging at 2000mm focal length (For comparison, 3x zoom on a digital camera is around 55mm), which is a lot more challenging!

NGC891 is a edge on spiral galaxy around 30 million light years away, in the constellation of Andromeda (The Andromeda galaxy, the furthest object you can see with the naked eye, from a dark site, is only 2m LY away)

ngc891

 

Added another 11 x 10min subs from last night, this time I used the Off Axis Guider rather than the separate 70mm frac as a guidescope. Not sure now what image is best!

bothsetsofsubs


NGC891

Here’s one thats been sitting on the hard drive for a couple of weeks – NGC891, I took it from the back garden observatory, it’s 17x10min subs,processed in Pixinsight and Photoshop (Setup was the usual, Altair F4Newt, QHY8 and Lodestar/OAG for guiding). Was a bit of a pig to process as I seemed to have a red halo round the middle third of the frame, I have seen this before and it appears to be some of the red light in the observatory leaking on to the CCD Sensor of the QHY8.

NGC891 is an edge on galaxy in Andromeda, it’s around 30 million light years away! Hubble has also had a look at this galaxy, it got a little closer in……. http://www.nasa.gov/mission_pages/hubble/science/ngc891.html