Author Archives: Reviewer

What is a refractor telescope

Posted on December 3, 2011 by Reviewer

      What is a refractor telescope There are three basic ways to bring light rays to a focal point. The earliest method used by telescope makers, was to bend the rays by passing them through one or more … Continue reading →

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Visionary Fieldtracker Emerald ED 8×42 binoculars review

Posted on December 3, 2011 by Reviewer

  The Visionary Fieldtracker Emerald ED 8×42 binoculars received a great review in Birdwatching magazine 2011 Click here to read the full review (3.92MB download) Click here to buy  

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Astrophotography (part 1)

Posted on December 2, 2011 by Reviewer

Astrophotography is a most rewarding hobby for many amateur astronomers. It is a wonderful way to capture and hold on to the beauty of the celestial objects we most admire, and provides us with a way to easily share them … Continue reading →

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Dark Sky Etiquette

Posted on December 2, 2011 by Reviewer

A dark sky site is an observing area where we can avoid and be free of light pollution. It enhances our view of the night sky from about a few hundred naked eye stars to over many thousands. There are … Continue reading →

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Helios Aero ED Binoculars

Posted on December 2, 2011 by Reviewer

  The Helios Aero ED 8×42 and 10×42 tick all the boxes required for the demanding birdwatcher.  At an incredible £199 for both 8x and 10x, they must be one of the best value / high performance ED birdwatching binoculars … Continue reading →

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What does Absolute Magnitude mean

Posted on November 28, 2011 by Reviewer

Absolute Magnitude the apparent brightness a star would have if placed at a distance of 10 parsecs from the earth.

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Opticron Discovery WP PC 8×42 binoculars. Customer review

Posted on November 28, 2011 by Reviewer

A customer came to the Northern Optics retail outlet recently. Her requirement was a good quality lightweight pair of binoculars. Despite looking through some 8×32 and 10×32 binoculars, she opted for the slightly larger Opticron Discovery WP PC 8×42. Even … Continue reading →

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Bird sightings. Water`s Edge Country Park. November 2011

Posted on November 27, 2011 by Reviewer

List of Bird sightings at the Water`s Edge country park. Week ending 22nd November 2011. Location. Barton Upon Humber, North Lincolnshire Black Bird Bull Finch Coot Cormorant Carrion Crow Collard Dove Tufted Duck Dunnock Gold Finch Canada Goose Great Crested Grebe Little … Continue reading →

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Lincoln Astronomy society. Lecture meeting December 6th 2011

Posted on November 26, 2011 by Reviewer

Lincoln Astro society .Tuesday 6th December 2011 starting at 7.30pm. The speaker will be Dr. Ann Bonnell of Leicester Astro Society. The title of her lecture is ’50 Years of Manned Spaceflight’ which she was planning to give last year but had … Continue reading →

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What is an Asterism

Posted on November 26, 2011 by Reviewer

An Asterism is a group of stars that appear to make an easily recognized shape, such as the “Big Dipper” or the “Coathanger”. They are in effect a well know shape within a Constellation.

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