Date: 12/14/2023
Location: Westport, Connecticut
The Fish Head Nebula is at the very tip of the Heart Nebula in Cassiopeia. This object is made up of a HII regions. From Wikipedia (
https://en.wikipedia.org/wiki/Heart_Nebula) The
Heart Nebula (also known as the
Running dog nebula,
IC 1805,
Sharpless 2-190) is an
emission nebula, 7500
light years away from
Earth and located in the
Perseus Arm of the
Galaxy in the constellation
Cassiopeia. It was discovered by
William Herschel on 3 November 1787.
[1] It displays glowing ionized
hydrogen gas and darker
dust lanes.
[2]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
red 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 the Sun, and many more dim stars that are only a fraction of the Sun's mass.
[1]Details of this image:
Lights: 27 @ 180s
Darks: 40
Dark Flats: 40
Flats: 50
Bias: 110
Telescope: Celstron 14" EdgeHD
Filter: STC Dual-Band Ha/Oiii
Guide Scope: 102mm Explorer Scientific Refractor
Camera: Nikon D750a
Mount: Astrophysics 1200 GTO
Software - Acquisition: The Sky
Software - Integration: PixInsight
Software - Guiding: PHD2
Software - Finishing: Photoshop and Lightroom
Astro-Plugin software: Russ Croman's xTerminator Series (Blur, Noise, Star)
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