Long Eaton Astronomical Society Meeting 27th November

Thursday 27th November 2014 (6:30-8:30pm): Speaker Phil Jaworek from the East Midlands Stargazers talking about Vintage refracting telescopes.

Outline

  • What is a Vintage Refractor
  • Brief history of the achromatic refractor – including description of Chromatic Aberration and focal length and their relationship in refractor design
  • Brief description of the Apochromatic Refractor
  • Advantages and disadvantages of the achromat
  • Achromats old and new – a few examples of famous (and not so famous) makes from the past 100 years including some of my own examples.
  • Accessories – eyepieces etc to match the vintage scope
  • What place does the achromat have in modern amateur astronomy – modern classic style achromats
  • What to look for in a vintage/classic scope
  • Where to buy and what to pay
  • Where to get info plus some interesting reading

Refreshments will be available from 6:15pm. All welcome, under 16’s must be accompanied by an adult. Free for members, non members are welcome for a suggested donation of £2 towards refreshments etc.

After the talk there will be opportunity for some observing if clear, if not there will be another shorter talk by Mr Perkins on topical subject matter.

Advertisements

About mpole2011

An astronomical observatory at The Long Eaton School, scheduled to open in early 2012
This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s