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Noctilucent Cloud |
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Written by Dave Grennan
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Noctilucent Cloud is a phenomenon which generally occurs in the summer months between latitudes 50 - 70 degrees. They are the very highest clouds which occur in the Earth's mesosphere at an altitude of around 80kms. Formed from Tiny crystals of water ice it is beleived by some that the increasing propensity of these to appear in recent years may be linked with climate change. Click On The Image for Full Size.
 10 Second Exposure, Canon 300D
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Three Irish asteroids in 2009 |
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Written by Dave Grennan
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The discovery of 2009 FV19 from Raheny observatory on March 21st was the third Irish asteroid discovery of 2009. This discovery followed hot on the heels of the discovery of 2009 FM14 from Celbridge Observatory and 2009 EN1 from Raheny. With the year hardly underway, its already been a vintage year for Irish asteroid discoveries following two similar discoveries (2008 TM9 and 2008 US3) in 2008.  |
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Open Focus - Autofocus DIY Style |
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Written by Dave Grennan
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Are you spending too long of those precious clear nights trying to attain that perfect focus? If so 'Open Focus' may well be the answer. 'Open Focus' is an open source set of plans schematics and drivers for an autofocus unit which can be coupled to many common focusers and can be built at home for a small fraction of the cost of a commercially available unit. Interested? Click the read more link below for details. |
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