February 2013 Archives

Positive Sketches of the Pleiades and BU536Click image to view larger version. Subject:Pleiades and BU536 Issue:February 2013 Astronomy Now Basic Media:Graphite on white stock Featured Technique:Observing and sketching at multiple magnifications: Naked Eye, Binocular, and Telescopic Suggested Sketching Materials: White sketch paper 2H and HB graphite pencils Blending stump Clipboard...
Article by Peter Grego Subject:Fireball Issue:January 2013 Astronomy Now Basic Media:Digital editing software Featured Technique:Capturing the spectacular view of a fireball Suggested Sketching Materials: Graphite pencil and white paper Digital editing software...
Article by Erika Rix Subject:Jupiter Issue:December 2012 Astronomy Now Basic Media:Graphite on white stock with digital color Featured Technique:Proportioning and shading details on Jupiter Suggested Sketching Materials: Clipboard with pre-printed Jupiter template on white acid-free paper Graphite pencil, white color pencil, and white vinyl eraser Blending stump and eraser shield...
There is impressive video coming out of Russia from a meteor airburst that shattered windows and injured hundreds. The entire object did not impact the ground at hypersonic speed—rather it disintegrated/exploded high in the atmosphere. These fearsome chunks of rock are all over the place out there—coincidentally, asteroid 2012 DA14...

Measuring Seeing and Transparency

A visitor to the site recently posted a question, asking what system I use to measure seeing and transparency. Currently, I use the Pickering Seeing Scale to describe deep-sky seeing conditions and use a Sky Quality Meter to measure sky brightness as a gauge of transparency. Seeing The Pickering Scale...

The Cerulean Arc

My weblog for
everything else non-astronomy

Pin at will!


(Thanks for maintaining
return links.)

About this Archive

This page is an archive of entries from February 2013 listed from newest to oldest.

January 2013 is the previous archive.

March 2013 is the next archive.

Find recent content on the main index or look in the archives to find all content.

Categories

Monthly Archives

Powered by Movable Type 5.2.3