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ASI585MM Air, ASI4400MC Pro and Seestar Binoculars arrive
Wednesday, November 26, 2025 by Richard Harris
ZWO has gone and done it again. Just when you think the landscape of astrophotography gear has settled for a moment, they roll in and break down a few more barriers. This time they are coming at us from every angle. On one side a new full frame camera for deep sky imagers who want to stretch their f...
Pleiades star cluster meets Supermoon in the night sky
Thursday, November 6, 2025 by Richard Harris
You can observe a unique celestial pairing as the Pleiades star cluster aligns closely with the full Moon, commonly referred to as a supermoon. This alignment offers a distinctive visual contrast between the bright lunar surface and the faint blue stars of the cluster. The event provides a natural o...
Why luminance frames miss narrowband nebula details
Monday, October 13, 2025 by Richard Harris
So you've spend a clear night capturing the Orion Nebula with your monochrome astrophotography camera. You shot one image through a luminance filter (essentially capturing all visible light), and another through a special Hydrogen-alpha (Hα) narrowband filter. When...
IDAS Dusk to Dawn filter
Thursday, August 7, 2025 by Russ Scritchfield
The IDAS DTD, officially known as the Dusk to Dawn filter, represents a unique approach to astrophotography filtering. Unlike many filters that specialize in narrowband isolation or broadband light suppression, this multi-bandpass filter offers a hybrid experience that caters to a wide variety of ce...