Astro Runner
Cone nebula region
Shot on 3/7/21 from Rain Drop Lane driveway on a cool evening, about 30F and calm winds. Sky was a Bortle 2, SQM 21.0 or slightly worse (due to neighbor lights). Subs 5 minutes, 85 minutes total exposure time, gain 120, cam temp -10C, ASI-294. Used Samyang 135 mm lens along with guiding by PhD and auto-dithering via SharpCap.
Visible in this image is a fairly beautiful Rosette nebula (looks better than subject in center), and also the tiny Hubble's Variable Nebula" (which looks like a comet). Cone itself did not reveal too much nebulosity. Also, feel that dithering was inadequate. Noise pattern is reminiscent of non-dithered work in the past. And the dithers were pretty small. Will need to adjust this in the future.
Note that IR cut filter was used, so stars were not bloated. Contrast this with other Cone image.
Used MultiscaleLinearTransform in PI for final smoothing (with k-sigma noise thresholding) to kind of smooth out some of the hash. Hope to re-shoot this image for more clarity and details. Also used PI's Starnet to help stretch the Ha.
Cone nebula region
Shot on 3/7/21 from Rain Drop Lane driveway on a cool evening, about 30F and calm winds. Sky was a Bortle 2, SQM 21.0 or slightly worse (due to neighbor lights). Subs 5 minutes, 85 minutes total exposure time, gain 120, cam temp -10C, ASI-294. Used Samyang 135 mm lens along with guiding by PhD and auto-dithering via SharpCap.
Visible in this image is a fairly beautiful Rosette nebula (looks better than subject in center), and also the tiny Hubble's Variable Nebula" (which looks like a comet). Cone itself did not reveal too much nebulosity. Also, feel that dithering was inadequate. Noise pattern is reminiscent of non-dithered work in the past. And the dithers were pretty small. Will need to adjust this in the future.
Note that IR cut filter was used, so stars were not bloated. Contrast this with other Cone image.
Used MultiscaleLinearTransform in PI for final smoothing (with k-sigma noise thresholding) to kind of smooth out some of the hash. Hope to re-shoot this image for more clarity and details. Also used PI's Starnet to help stretch the Ha.