IC 1805

IC 1805 .The core of the Heart nebula. The nebula lies in the constellation of Cassiopiea the Queen at a distance of about 7,500 light years . The sky conditions on this particular evening was not very clear , stars down to mag 4 was only visible . I captured five-minute sub frames with matching dark frames and combined them with
flat field frames to reduce the effect of vignetting in the final image. I was using a ten inch F4.8 reflector , an Atik 383L mono CCD camera with P.H.D. auto guiding . The total exposure time was sixty minutes for each narrow band filter , H Alpha, S11 and O111 filters using the Hubble palette for the colour data.

NGC281

NGC281 . This is commonly named the Pacman Nebula in the constellation
of Cassiopeia the Queen at a distance of about 9,500 light years . I
had bright moon light and light pollution to contend with, but with
very steady seeing conditions . The mount was tracking perfectly on
this particular evening , notice the inner core detail . I used five
minute sub frames with matching dark frames combined with flat field
frames to reduce the effect of vignetting in the final image. I was
using narrow band filters , S11, HA, and O111. and used the Hubble
Palette for the colour data. The total exposure times was sixty
minutes for S11 and HA filters and fourty minutes for the O111 filter

Detail in the core