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View Full Version here: : Smaller Exit Pupil Gave Me A Brighter Image


refractordude
04-05-2024, 11:04 AM
Hello there


Last night I was out at my dark spot Lost River Campground West Virginia. Bagged a few galaxies my favorite being M104 Sombrero. While observing M51 the Whirlpool galaxy I started with my Meade 56mm plossl, then the Olivon 22mm, and finally the 15mm Agena Starguider/Paradgm. The 15mm gave me a smaller exit pupil but caused the two cores to pop out. Just goes to show that by darkening the background can make an object being observed much brighter.