IC 1805 · Seestar S50 Pro · 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 55 minutes.

Moon Phase	New Moon
Camera	Seestar S50 Pro (4K Sony IMX585 sensor)
Optics	260 mm focal length, f/5.2, 50 mm aperture
Filter	LP
Binning	1x1
Stacking	StackingWizard, 55 frames, 39-pointing mosaic
Date	2026-09-12
AstroWizard Processing	BlurXTerminator (0.3) NoiseXTerminator (0.9) (x2)