SH2-280 or LBN 973
The below rendition done in November 2020
Reasonably faint emission nebula in Monoceros approximately 2.5 degrees from the Rosette Nebula. Located approximately 5,500 light-years away. Not imaged very often - it is not very exciting done with RGB filters. It shows up well using an Ha filter but requires a lot of time to bring out any OIII or SII signal. I really should have given this object much more time.
The noise in the background is a result of shooting in bright moonlight - this could be improved if ever I get back to add more data to improve the SNR (Signal to Noise Ratio).
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: FLI ML16200 ADT
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon Ha, OIII, SII.
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4500 x 3500 - this image is a crop to 3200 x 2400
Dates: 6th Jan & 11th Jan 2020
Frames:
Astrodon Ha 30 x 10'
Astrodon OIII 24 x 10'
Astrodon SII 21 x 10'
Total integration = 12.5 hours.
Center (RA, Dec): (98.594, 2.663)
Center (RA, hms): 06h 34m 22.566s
Center (Dec, dms): +02° 39' 45.146"
Size: 1.7 x 1.27 deg
Radius: 1.060 deg
Pixel scale: 1.91 arcsec/pixel
Orientation: Up is 360 degrees E of N
The noise in the background is a result of shooting in bright moonlight - this could be improved if ever I get back to add more data to improve the SNR (Signal to Noise Ratio).
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: FLI ML16200 ADT
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon Ha, OIII, SII.
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4500 x 3500 - this image is a crop to 3200 x 2400
Dates: 6th Jan & 11th Jan 2020
Frames:
Astrodon Ha 30 x 10'
Astrodon OIII 24 x 10'
Astrodon SII 21 x 10'
Total integration = 12.5 hours.
Center (RA, Dec): (98.594, 2.663)
Center (RA, hms): 06h 34m 22.566s
Center (Dec, dms): +02° 39' 45.146"
Size: 1.7 x 1.27 deg
Radius: 1.060 deg
Pixel scale: 1.91 arcsec/pixel
Orientation: Up is 360 degrees E of N
Sky Map
Ha, OIII & SII in the image
Annotated Image
