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Triangulum Galaxy in HaLRGB, Robert H. Kutner
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Triangulum Galaxy in HaLRGB

Triangulum Galaxy in HaLRGB, Robert H. Kutner
Powered byPixInsight

Triangulum Galaxy in HaLRGB

Equipment

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Acquisition details

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Description

Had captured this data for M33 a few weeks ago before this cloud deck moved in.  Do not know if i will be able to collect more data this year and decided to process with ~half the typical time I devote to targets.  These Astronomick Deep Sky filters produce some nice colors.

Stellarium 0.20.3 to scout and frame target. ASI Air pro to acquire 120 x 30s images for L and 30 x 60s for R, G, & B, all @ -10c & 0g, ~96% were usable. For Ha, 15 x 300s images @ -10c & 0g, 40% were useable. Dithered every frame for all channels.

Blink / Subframe Select, Calibrated (60 Dark, 60 Flat, 100 Bias), Star Aligned all images with PixInsight. Used the Normalized Scale Gradient for integration.  

For all channels:  Cropped, DBE, TGVDenoise, MMT, & EZ Soft Stretched (not L).

Initially channel combined only R, G, & B using LRGB combination, & SCNR treated for G on this RGB image.

The Lum was Mask Stretched, HDR, LHT, and LRGB Combined with LRGB Combination RGB image.

The Ha was StarNet, DBE, and combined in to the LRGB image with the NBRGB Combination script.

Combined image was DBE, Arcsinh Stretched, TGVDenoise, MMT, and Curves modified w/ & w/o masks to taste. Resampled, Cropped, and Annotated.

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Triangulum Galaxy in HaLRGB, Robert H. Kutner

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