Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  IC 1805  ·  NGC 896
IC 1805 - Heart Nebula, Kyle Butler
IC 1805 - Heart Nebula
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IC 1805 - Heart Nebula

IC 1805 - Heart Nebula, Kyle Butler
IC 1805 - Heart Nebula
Powered byPixInsight

IC 1805 - Heart Nebula

Equipment

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Acquisition details

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Description

Exposure Details (4 panel mosaic; sub exposure numbers are per panel)

30x 300s Ha (111 gain, 10 offset)

30x 300s OII (111 gain, 10 offset)

30x 300s SII (111 gain, 10 offset)

30.0 hours total integration time

Processing

Processed each channel individually

Frames calibrated and stacked in PixInsight, drizzle 2x

DynamicCrop and DynamicBackgroundExtraction on each channel for each panel

Rough mosaic alignment using StarAlignment with Mosaic - Union; done on each channel separately

Finer mosaic alignment using StarAlignment with Mosaic - Separate to produce aligned individual panels per channel

Final Mosaic merge on resulting frames using GradientMergeMosaic

MultiscaleLinearTransform noise reduction on each merged mosaic channel w/ Luminance mask

Stretched each channel to non-linear using HistogramTransformationFunction

Combined channels using PixelMath (R = Ha; G = SII; B = OIII)

ColorSaturation with masking

CurvesTransformation

Minor final touch ups in photoshop (Local contrast enhancement, star de-emphasis)

Comments

Sky plot

Sky plot

Histogram

IC 1805 - Heart Nebula, Kyle Butler