Two Days Before Full Moon
|Apparent size:||32.5 arc-min.|
|Exposure:||0.124641sec – best 125 frames stacked from 500 frame video.|
One of the ‘problems’ of astro-imaging is that a telescope with a camera, is not zoomable. Visual observers can swap eyepieces in a few seconds to narrow the field of view and magnify the target but it’s not that simple with astro-photography.
So, having just added a new accessory which can double the focal length from a native f/7 to an effective f/14 and reduce the field of view, I was anxious to try it out.
Full Moon is not a favoured time for most astronomers, the glare is too strong for serious astronomy. However, I was desperate to test my new Televue Powermate so I decided that the Moon was my friend.
This image of the Moon, taken by stacking video frames, is evidence that the Powermate is going to be a useful addition to the astro-toolbox and I’m hopeful it will prove useful when imaging smaller objects.
|SkyWatcher Esprit 120 mm apochromatic 3-element refractor.|
|840 mm focal length @ f/7 with field flattener and 2x Televue Powermate.|
|Baader L-Booster UHC-S light pollution filter 2458276.|
|SkyWatcher EQ6-R Pro mount.|
|Camera: ZWO ASI 071 MC Pro (CMOS 28.4mm 16 Mpx)|