M 13 - Great Clobular Cluster in Hercules
From the author of Welcome to the Universe in 3D
22:53 EDT June 4, 2025.
Seestar S30 at f/5.
60 minute stack of 10-second subexposures.
Spectral Image
23:28 EDT June 30, 2026.
Seestar S30 Pro at f/5 in Equatorial Mode.
With an RSpec Star Analyser 200 diffraction grating
from Field Test Systems.
22 minute stack of 20-second subexposures.