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Captured by
Bob Birket

Messier 13

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M81 and M82 Galaxies image

M81 and M82 Galaxies

Contains: Deep sky object
Acquisition Details
  • Number of frames:
  • FPS:
  • Focal length:
  • CMI/CMII/CMIII:
Description

Scope/Mount: TS-Optics PhotoLine 130mm F7 APO Refractor with Astro-Tech AT2FF Field-flattener, Celestron CI-700 Mount Camera: ZWO ASI1600MMC monochrome with ZWO LRGB and Ha, Oiii, Sii filters Guiding: QHY5L-IIM through Orion Deluxe OAG, PHD guiding software Exposure: L:(30) 120 secs @ gain=139, Ha(24) 300 secs @ gain=300, RGB: each channel (10) 120 sec @ gain=200 Software: Nebulosity, Pixinsight, NoiseXterminator Comment: 04/19/2025, Tierra del Sol, CA, good conditions. Palette = LRGB plus Ha used as mask.