M3 – NGC5272
5hrs of total exposure using 10min subs. This was to get the very faint stars at the far periphery as well as the brighter centre that would require lower exposure. I used an extended full-well-depth mode on the camera from this to give a full well depth of 75,000e to prevent the core blowing out in the 600s exposures. by Dean Ashton
Lagoon & Trifid Nebula
by Dr Nigel Price
M13
M13. 90x300s or 12.5 hours total exposure to get those fainter stars at the periphery. Taken in 2022, using a Celestron 9.25 SCT, QHY268C and an Optolong L-Pro filter. by Dean Ashton
M27 – NGC6853
Image by Frank Johns
M16 & M17 by Dr Nigel Price
This is the Eagle Nebula (M16) centre and the Omega Nebula (M17) bottom right. Both are quite low to the horizon….lots of stars due to the proximity to the galactic bulge…over 230,000 point sources in the image!
M33 by Dean Ashton
M33 with Ha and RGB combined. Specifically 11hr20m (68x600s) of RGB and 4h20m (26x600s) of Ha combined. As you see, combining the Ha makes a big difference to the image. M33 is very active in star formation. THe Ha is also providing greater resolution of some of the larger nebula in M33 with structure in NGC604 becoming clear.
All images are Copyright of the respective owners names against each image.