Lunar Angular Diameter Comparison 2019-09-14 & 2020-04-07
Aberkenfig, South Wales
Lat 51.542 Long -3.593
Skywatcher 254mm Newtonian Reflector, Olympus E410 at prime focus. EQ6 Syntrek Mount.
2019-09-14: 1/500s ISO-200
2020-04-07 1/500s ISO-200
Levels slightly adjusted with G.I.M.P.
Annotations added with G.I.M.P.
Lunar south is uppermost
Used at prime focus of this telescope the dimensions of this camera's imaging chip is an ideal frame size for a near full or full moon. It also provides a convenient method for imaging and comparing our moon's relative size as seen from Earth during its elliptical orbit.
The comparison also displays a south west to north east libration.
The difference in angular diameter is about 13.6%
Lunar Angular Diameter Comparison 2019-09-14 & 2020-04-07
Aberkenfig, South Wales
Lat 51.542 Long -3.593
Skywatcher 254mm Newtonian Reflector, Olympus E410 at prime focus. EQ6 Syntrek Mount.
2019-09-14: 1/500s ISO-200
2020-04-07 1/500s ISO-200
Levels slightly adjusted with G.I.M.P.
Annotations added with G.I.M.P.
Lunar south is uppermost
Used at prime focus of this telescope the dimensions of this camera's imaging chip is an ideal frame size for a near full or full moon. It also provides a convenient method for imaging and comparing our moon's relative size as seen from Earth during its elliptical orbit.
The comparison also displays a south west to north east libration.
The difference in angular diameter is about 13.6%