ScienceDownEast | ScienceDownEast Astrophotography | Nebulae | IC 410 The Tadpoles Nebula | NGC 1893 and IC 410 Tadpole Nebula

NGC 1893 and IC 410 Tadpole Nebula

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
Processing Processed in PixInsight.
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


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