Contains:  Solar system body or event
Four-Day-Old Moon,  June 25, 2020, 



Four-Day-Old Moon, June 25, 2020

Technical card

Imaging telescopes or lenses: Meade MTS-SN6

Imaging cameras: Pentax K-3 II

Date: June 25, 2020

Frames: 1

Focal length: 762

Resolution: 2171x2621

Data source: Backyard


Crescent moons, whether waxing (as here) or waning, are generally more difficult to image well than other phases because the moon is lower in the sky when it is dark enough to shoot (during twilight at least), especially in the summer months. That puts more atmosphere in the way, which usually increases the negative effects of atmospheric turbulence. This prime-focus image is no exception. It is a little softer than the gibbous phases I have imaged. I used a shorter shutter speed (1/320 second) along with a higher ISO (800) than usual in order to attempt to freeze the seeing as much as possible. That probably didn't do much.

The Meade MTS-SN6 is a 6-inch f/5 Schmidt-Newtonian telescope from the 1980's.



Four-Day-Old Moon,  June 25, 2020,