Archive for April, 2008

Well our definitive version of M31 with all the added H-alpha made Picture of the Month in the May 2008 issue of Astronomy Now.  Thank you Nik Szymanek for the very nice accompanying write-up 🙂

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A couple of weeks ago I imaged La Superba – a carbon star in Canes Venatici.  This is only 11 subs at 6-minutes per sub, but you can just make out a few interesting faint fuzzies in the background.  I will try for more RGB on this one as well as some infrared data (R72) as well.

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The New Forest Observatory makes an appearance in Scientific Computing World this month.  Thank you Felix Grant for producing a very informative article.

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In an earlier post I showed how I take large terrestrial mosaics (panoramas) using the Canon 40D in a manner similar to taking deep-sky mosaics.  Not only does this give you a bigger field of view, it also gives you (ultimately) a very high resolution image. Read the rest of this entry »

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So yesterday it was snow.  Today it is hail, rain and sunshine in equal measure.  This afternoon this rainbow appeared over the New Forest Observatory.  A good omen for 2008??

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So after an unbelievably mild winter we get snow on April 6th!  Here’s a view of my garden this morning at 7.30 a.m.  Now [3.00 p.m.] it is sunny, warm, and the snow has almost completely disappeared.

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Further to the Image of the Month below, I did in fact manage to get nearly 5 hours of 750-second subs on that third frame (to the left) for the Markarian Chain mosaic, just a couple of nights ago.  The third frame contains M89, M90 and M91 – and the complete mosaic of this region is going to look quite stunning!

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  You will probably know that Leibniz and Newton, working independently, came up with that torment for schoolchildren and an invaluable aid for engineers, the infinitesimal Calculus.  However, did you realise that the formulation of the Calculus, at least that due to Leibniz, had a mystical, rather than a mathematical foundation?  Also, were you aware that Newton, during the same period of time, was studying the Bible trying to discover an underlying secret code? Read the rest of this entry »

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Spring is galaxy season in the imager’s diary, and for my April imaging object of the month I am choosing not a single galaxy, but a whole chain of galaxies, Markarian’s Chain at the border of the constellations Virgo and Coma Berenices.

You need a wide field of view to capture this galaxy-rich region of space, and the accompanying image is a 2-frame mosaic using the already large field of view of 3.33 by 2.22 degrees of a single Sky 90/M25C frame!  Read the rest of this entry »

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Comments Comments Off on IOM April 2008: Markarian’s Chain