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Astronomy Clubs as Non Profit 501-C Organizations

Posted by Ronald Abraham 08/05/2009 07:00AM   (Articles/Other-Articles/Other)

Is your club growing? Shrinking? Here are some thoughts to get you thinking...

Comments on low cost, long focal length 2” widefield eyepieces

Posted by David Russell 08/02/2009 04:00PM   (Articles/Other-Articles/Equipmentoptics)

The market offers many options for low cost wide fields eyepieces, but they don't deliver sharp performance in the outer 20 to 30% of the field. My thoughts and a proposed solution.

Ultra-Low-Cost Fine-Focus Gear-Reduction Drive

Posted by Ron Masters 05/30/2009 12:42AM   (Articles/Other-Articles/Equipmentoptics)

Ultra-Low-Cost Fine-Focus Gear-Reduction Drive

A simple, $15 gear unit can give you a 3:1 focuser reduction drive that will work for any scope.

Meade 7” Maksutov, …Updated 5-18-09

Posted by Steve Hollenbach 05/18/2009 07:00AM   (Articles/Other-Articles/Equipmentoptics)

Meade 7” Maksutov, …Updated 5-18-09

You might get the impression I’ve become so obsessed with the Meade 7" MAK OTA, that I put too much into it. Yes, I’m really stuck on this one!

Astronomy Outreach at Camp Eberhart

Posted by Darren Drake 01/19/2009 08:00AM   (Articles/Other-Articles/Other)

Astronomy Outreach at Camp Eberhart

The Ultimate Outreach experience....

Meade 7 inch MAK revised

Posted by Steve Hollenbach 12/19/2008 08:00AM   (Articles/Other-Articles/Equipmentoptics)

Meade 7 inch MAK revised

After more work done on Meade's "BIG MAK" I have revised the counterweight article.

Focal Reducer for Meade 7" MAK

Posted by Steve Hollenbach 06/18/2008 07:00AM   (Articles/Other-Articles/Equipmentoptics)

Here's the third article of the three I had planned. Increasing the True Field Of View of the Meade 7" Maksutov.

Making the most of the Meade 7" MAK

Posted by Steve Hollenbach 06/13/2008 07:00AM   (Articles/Other-Articles/Equipmentoptics)

Making the most of the Meade 7" MAK

Meade's big MAK has very few drawbacks. Let's get rid of them!

The Magic Bullet for the SCT

Posted by Ronald Abraham 03/18/2008 07:00AM   (Articles/Other-Articles/Equipmentoptics)

Have you oiled your telescope today?

Monochromatic VS OneShotColor CCD

Posted by dietmar hager 03/09/2008 08:00AM   (Articles/Other-Articles/Other)

Monochromatic VS OneShotColor CCD

do these CCD necessarily have to be competitors?

Can't afford a 4" APO?

Posted by Gary Poliquin 12/17/2007 08:00AM   (Articles/Other-Articles/Equipmentoptics)

Yes, Tommy, there is a good 4" short focus achromat.

SKY-MAP.ORG - How Our Vision was Born

Posted by Konstantin Lysenko 11/29/2007 05:12PM   (Articles/Other-Articles/Philosophical)

I have never suffered from a lack of imagination. As a child, I spent many hours dreaming of stories written by Ray Bradbury. I carried books by Clifford Simak and Robert Sheckley to school instead of textbooks. I swore to my parents that I had witnessed first hand the stories described by Isaac Asimov. I considered Stanislav Lem a close relative because my great-grandmother was also from Poland...

To Survive in the Universe

Posted by Konstantin Lysenko 11/29/2007 05:09PM   (Articles/Other-Articles/Philosophical)

"I don't think the human race will survive the next thousand years, unless we spread into space. There are too many accidents that can befall life on a single planet."[1] The SKY-MAP.ORG authors completely share these concerns of Stephen Hawking. The only words we could add are that the greatest threat to the human race is the human race itself.

A Clean Chip Means Better Images.

Posted by Luke Schmidt 05/17/2007 04:55AM   (Articles/Other-Articles/Equipmentoptics)

A Clean Chip Means Better Images.

A few specs of dust on your CCD chip can easily be removed with a flat field, but what happens when the dust grains out number the stars? Cleaning your imaging chip doesn't have to be an ordeal with PecPads and Eclipse Cleaning solution.

Lightholder 16" F/4.6

Posted by Ralph Ford 02/23/2007 08:00AM   (Articles/Other-Articles/Equipmentoptics)

A perfect 16" mirror? If not, its pretty darn close!