NGC 1893 and IC 410 Tadpole Nebula · 2025-01-22

NGC 1893 and IC 410, the Tadpoles Nebula - BBC The Sky At Night "is located 12,000 lightyears from Earth in the Auriga constellation, and is nicknamed the Tadpole Nebula because of the tadpole-shaped clouds of dark dust that appear to be swimming towards the centre.

NGC 1893 and IC 410, the Tadpoles Nebula - BBC The Sky At Night "is located 12,000 lightyears from Earth in the Auriga constellation, and is nicknamed the Tadpole Nebula because of the tadpole-shaped clouds of dark dust that appear to be swimming towards the centre. The Tadpole Nebula is a region of ionised hydrogen gas spanning over 100 lightyears across that's carved and sculpted by streams of charged particles called stellar winds emanating from open star cluster NGC 1893. NGC 1893 is about 4 million years old: the blink of an eye in cosmic terms. The 'tadpoles' that give the nebula its nickname are dense streams of dust and gas about 10 lightyears long that may well be sites of star formation."

Total image time was 4.66 hours.

Exposure	56 x 5 min.
GAIN	100
Camera	ToupTek ATR2600C [6224 x 4168]
Optics	120mm Skywatcher Esprit on a Proxisky UMi20S mount
Guiding	ToupTek GPM462M using Phd2
Controller	Kstars on Mele Quieter 3C
Filter	Clear
Location	Lower Sackville, Nova Scotia.
Date	2025-01-22
PixInsight Processing	GraXpert Background Neutralization SpectrophotometricColourCalibration BlurXTerminator NoiseXTerminator Generalized Hyperbolic Stretch StarXTerminator In the starless image: HDRMultiScaleTransform SCNR to remove the green Mask creation Extract CIE L* component to create the mask Apply it to the starless image CurvesTransformation apply Saturation Invert mask CurvesTransformation desaturate a bit Pixelmath (if StarXTerminator was used). ~((~stars)*(~starless))

Further tweaking in Preview