IC 1805 · ATR2600C · 2026-09-12

The Heart Nebula is an emission nebula, 7,500 light-years (2,300 pc) away from Earth and located in the Perseus Arm of the Galaxy in the constellation Cassiopeia.

The Heart Nebula is an emission nebula, 7,500 light-years (2,300 pc) 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. In 1958, it was identified as a radio source by Gart Westerhout and is therefore also referred to as Westerhout 4 . It displays glowing ionized hydrogen gas and darker dust lanes.

[Source: Wikipedia, en.wikipedia.org/wiki/Heart_Nebula]

Total image time was 4 hours and 30 minutes.

Moon Phase	New Moon
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Filter	Triad Quad
Binning	1x1
Stacking	StackingWizard, 27 frames
Date	2026-09-12
AstroWizard Processing	BlurXTerminator (0.6) NoiseXTerminator (0.9) (x2)