Celestial hemisphere:  Northern  ·  Constellation: Virgo (Vir)  ·  Contains:  IC 3672  ·  IC 3684  ·  IC 809  ·  M 59  ·  M 60  ·  NGC 4606  ·  NGC 4607  ·  NGC 4621  ·  NGC 4637  ·  NGC 4638  ·  NGC 4647  ·  NGC 4649
NGC4647 during SN2022hrs in LRGB, Robert H. Kutner
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NGC4647 during SN2022hrs in LRGB

NGC4647 during SN2022hrs in LRGB, Robert H. Kutner
Powered byPixInsight

NGC4647 during SN2022hrs in LRGB

Equipment

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Acquisition details

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Description

Dithered during acquisition. Blink / Subframe Select, Calibrated (60 Dark, 60 Flat, 100 Bias), Star Aligned all images with PixInsight, about 90% were useable. Used Image Integration with drizzle then Dynamic Cropped. 

For 60s R, G, & B channels: ABE, EZDeNoise, STF Stretch, and channel combined using LRGB comb., Background Neut, Photometric CC, and MT for star reduction

For 120s Lum: ABE, TGVd, MLT, Mask Stretched, HDR, LHE. DSE, and MMT before LRGB Combined with 60s RGB image.

For 120/60s stars: LRGB Channel Comb. RGB Star Image was Mask Stretched, then masked with an inverted Star Mask and replaced with LRGB image using Pixel Math.

Final combined image was Curves modified w/ & w/o masks, Resampled, and Annotated.

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NGC4647 during SN2022hrs in LRGB, Robert H. Kutner

In these public groups

Cloudy Nights