Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004jbaa..114....1r&link_type=abstract
Journal of the British Astronomical Association, vol.114, no.1, p.1-3
Astronomy and Astrophysics
Astronomy
Scientific paper
Aurora and solar activity last October. Aurora at Ullapool, Scotland on 2003 October 29/30 by Tony Rickwood, 20 secs. at f/2.8, 200ISO film. 'Note that the landscape is actually lit by all that light - I didn't need a torch to make notes!' Sunspot detail (left) by Mike Hendrie, October 26, 09:52 UT, 1/60 sec. using a 0.7Å H-alpha filter on 152mm Cooke refractor at f/44, Kodak Technical Pan film. Whole disk image (right) by Jean Dragesco, October 29, 11:07 UT, 1/1000 sec. with ETX 105mm Maksutov, Baader rejection filter, also Kodak Technical Pan. Seven separate sunspot groups are visible.
Dragesco Jean
Hendrie Michael
Rickwood A.
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