Tomjo59

Plastic lenses for Astronomy

By Tomjo59, February 4 in The Astro Lounge

• lenses
• refractors

On seeing Triton

By Tomjo59, September 21, 2019 in Observing - Planetary

Very clear last night

By Tomjo59, August 26, 2019 in Observing - Discussion

• weather

Marauding Gas Giants

By Tomjo59, June 15, 2019 in The Astro Lounge

Astrophotography book

By Tomjo59, June 9, 2019 in The Astro Lounge

Time for a ‘scope change - question

By Tomjo59, April 3, 2019 in Discussions - Scopes / Whole setups

• skywatcher
• focussing mounts

‘Grey’ space

By Tomjo59, December 16, 2017 in Observing - Discussion

There's a curious thing...

By Tomjo59, March 26, 2017 in The Astro Lounge

Interesting, if true

By Tomjo59, January 6, 2017 in The Astro Lounge

• nova

Heads up - New Scientist

By Tomjo59, September 25, 2016 in The Astro Lounge

• physics

Collimation discrepancies

By Tomjo59, June 13, 2015 in Discussions - Scopes / Whole setups

• collimation

Diffraction spikes

By Tomjo59, May 27, 2015 in Discussions - Scopes / Whole setups

Newtonian refractor, anyone?

By Tomjo59, May 3, 2015 in Discussions - Scopes / Whole setups

Opinions please..

By Tomjo59, December 23, 2014 in Discussions - Scopes / Whole setups

Best planetary 'scopes 1 2

By Tomjo59, November 22, 2014 in Discussions - Scopes / Whole setups

Dobsonians for lunar/planetary

By Tomjo59, July 27, 2011 in Discussions - Scopes / Whole setups

Just saying Hi! 1 2

By Tomjo59, April 25, 2011 in Welcome

Are central obstructions so bad? 1 2

By Tomjo59, April 26, 2011 in Getting Started General Help and Advice

C9.25 or C11?

By Tomjo59, April 29, 2011 in Discussions - Scopes / Whole setups

Any mathematicians out there?

By Tomjo59, May 1, 2011 in Physics, Space Science and Theories