2012 June 20
My first solar imaging attempt for a couple of
months shows Active Region 1504 just before it disappears round the
This image shows the whole of the Sun's
disc, with Active Region 1504 the only feature apart from
some bright faculae on the opposite limb.
The image was produce by stacking 30
images captured using a Nikon 950 digital camera connected
afocally via a 40mm Plossl eyepiece to an ETX125 telescope.
This image of AR 1504 was produced
using a DMK31 astronomy camera connected the the same
telescope as above.
The best 100 frames from 700 were
aligned and stacked using Registax6.
This image was produced using the same setup and
technique as above but a Televue x2.5 Powermate was included
in the light path give the telescope an effective focal
length of 4.75 metres.
The lighter regions in all the images are faculae and ech
image shows the dark sunspots or umbrae surrounded by the
lighter penumbrae regions.
Back to Updates