LDN 1235 - Aug.2020
LDN 1235 (Lynds Dark Nebula) is a vast nebula complex that stretches throughout this image & bears some resemblance to a shark, thus commonly referred to as the "Dark Shark Nebula".
Dark nebula are opaque clouds of dust and gas in space that block the light of stars behind them. But some of the faint dust in the area of LDN 1235 may also be visible because the dust is glowing from photoluminescence. (This dust glows from the interstellar radiation field when the particles are hit by high energy radiation). LDN1235 was determined to be about 672 light years away from Earth.
Also shown in this image are two reflection nebulae, van den Bergh 149 (vdB 149) and vdB 150. These blue nebulae can be seen on the left side of the Dark Shark at top and bottom. Also visible (above & right of the bright white star) is distant galaxy PGC 67671.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: FLI ML16200
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: PHD 2, Pleiades Astrophoto PixInsight , Astro Pixel Processor (for stacking), Sequence Generator Pro SGP (for capture)
Filters: Astrodon L,R,G & B
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4008 x 2448
Dates: 11th Jun - 12th Aug '20
Frames:
Astrodon L 180 x 3'
Astrodon R 20 x 3'
Astrodon G 20 x 3'
Astrodon B 20 x 3'
Total Time: 12 Hours
Center (RA, Dec): (330.728, 73.045)
Center (RA, hms): 22h 02m 54.611s
Center (Dec, dms): +73° 02' 42.832"
Size: 2.12 x 1.3 deg
Radius: 1.244 deg
Pixel scale: 1.91 arcsec/pixel
Orientation: Up is 2.09 degrees E of N
Dark nebula are opaque clouds of dust and gas in space that block the light of stars behind them. But some of the faint dust in the area of LDN 1235 may also be visible because the dust is glowing from photoluminescence. (This dust glows from the interstellar radiation field when the particles are hit by high energy radiation). LDN1235 was determined to be about 672 light years away from Earth.
Also shown in this image are two reflection nebulae, van den Bergh 149 (vdB 149) and vdB 150. These blue nebulae can be seen on the left side of the Dark Shark at top and bottom. Also visible (above & right of the bright white star) is distant galaxy PGC 67671.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: FLI ML16200
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: PHD 2, Pleiades Astrophoto PixInsight , Astro Pixel Processor (for stacking), Sequence Generator Pro SGP (for capture)
Filters: Astrodon L,R,G & B
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4008 x 2448
Dates: 11th Jun - 12th Aug '20
Frames:
Astrodon L 180 x 3'
Astrodon R 20 x 3'
Astrodon G 20 x 3'
Astrodon B 20 x 3'
Total Time: 12 Hours
Center (RA, Dec): (330.728, 73.045)
Center (RA, hms): 22h 02m 54.611s
Center (Dec, dms): +73° 02' 42.832"
Size: 2.12 x 1.3 deg
Radius: 1.244 deg
Pixel scale: 1.91 arcsec/pixel
Orientation: Up is 2.09 degrees E of N
Sky map
Annotated image
