Friday, 18 March 2016

Bode's Nebula - Messier 81

Almost 3 hours of data! 167 x 60 s subs, plus flats , bias and darks. Still using the ST80 though, unfortunately, plus the murky night  with a half moon meant I also used the UHC filter. I NEED to get a better imaging telescope, the purple fringed stars are NOT pretty!


Beside Messier 81, there is M82 (Cigar Galaxy) and NGC 3077

Monday, 14 March 2016

Messier 101

More from the ST80. I am toying with the idea of getting a Skywatcher 150 dps, which would give me a bit more magnification than the 130 but still be fine for the CG GT5 mount. I could then go back to guiding and longer exposures. This image of Messier 101 is based on 150 45 second subs, but during the session, the image travelled about a third of the field of view... I think this is the reason the flats have appeared to 'not have worked' - the FOV  of the flats is not the same as the stacked images.


There was quite a lot of light pollution, a moon plus somewhat hazy skies..all things considered not a bad image for an £80 telescope!

Horsehead

Still persevering with the ST80.  I took around two hour worth of 60 second subs and made do with the old darks, flats and bias, to capture this version of the Horsehead Nebula in Orion:


I need to start using filters, the head is very muzzy!