IC 1805 - Heart Nebula
The above is a new rendition of Melotte 15 done in Aug. 2021. Click on image for a closer look.
Above image awarded APOD by Astronomia.com on 27th Aug 2021
More images of this area from 2021 and 2022 on this page: Heart Nebula 2021 & 2022
The Heart Nebula, IC 1805, Sharpless 2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It was discovered by William Herschel on 3 November 1787. It is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.
The brightest part of the nebula (a knot at its western edge) is separately classified as NGC 896, because it was the first part of the nebula to be discovered. The nebula's intense output and its morphology are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars, known as Collinder 26 or Melotte 15, contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass.
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 Ha, SII, OIII,
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4144x 3572
Dates: 19th Sept - 27th Sept '20
Frames:
Astrodon Ha 48 x 10'
Astrodon SII 42 x 10'
Astrodon OIII 42 x 10'
Total Time: 22 Hours
Center (RA, Dec): (38.393, 61.215)
Center (RA, hms): 02h 33m 34.238s
Center (Dec, dms): +61° 12' 53.638"
Size: 2.19 x 1.89 deg
Radius: 1.448 deg
Pixel scale: 1.91 arcsec/pixel
Orientation: Up is 1.61 degrees E of N
The brightest part of the nebula (a knot at its western edge) is separately classified as NGC 896, because it was the first part of the nebula to be discovered. The nebula's intense output and its morphology are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars, known as Collinder 26 or Melotte 15, contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass.
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 Ha, SII, OIII,
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4144x 3572
Dates: 19th Sept - 27th Sept '20
Frames:
Astrodon Ha 48 x 10'
Astrodon SII 42 x 10'
Astrodon OIII 42 x 10'
Total Time: 22 Hours
Center (RA, Dec): (38.393, 61.215)
Center (RA, hms): 02h 33m 34.238s
Center (Dec, dms): +61° 12' 53.638"
Size: 2.19 x 1.89 deg
Radius: 1.448 deg
Pixel scale: 1.91 arcsec/pixel
Orientation: Up is 1.61 degrees E of N
If you like Mono images - you may enjoy looking in on the larger version of this crop (by clicking on the image itself).
This is how the 3 Master Subs (SII, Ha & OIII) added data into the image:
Sky Map
Annotated Image
