Orwell Astronomical Society (Ipswich)

Home Events

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Telescopes & Other Equipment

Choosing A First Telescope

Martin Richmond-Hardy, Choosing a first telescope (booklet)
Robin Scagell et al, Choosing a first telescope or binoculars
David Payne et al, Choosing an eyepiece
Neil Morley, Review of the Helios ST80 wide-field, short-tube refractor
Rob Herring, Review of the Celestron Nexstar 5SE Schmidt-Cassegrain
Joe Startin, Review of the Celestron Nexstar 8SE Schmidt-Cassegrain

Telescope Making

Neil Morley & James Appleton, Millennium Telescope
Mike Harlow, 30 cm prime focus reflector
Mike Harlow, Schmidt camera
Mike Harlow, Schmidt camera with CCD
Mike Harlow, 50 mm finderscope
Les Lamb, 220 mm reflector
Mike Harlow, 110 mm reflector
John Barbrook, 150 mm reflector
Mike Harlow, Equatorial mount for Schmidt camera
Roy Adams, Equatorial mount for 60 mm refractor

Telescope Performance

Bill Barton, FRAS, The Dawes Limit on the resolving power of a telescope
Bill Barton, FRAS, Use of out of focus images to assess the quality of telescope optics

Astronomical Things To Make At Home

Martin Richmond-Hardy, Things to make at home

Other Equipment

James Appleton & Alan Smith, All-sky cameras
Bill Barton, FRAS, The Dipleidoscope: a solid-state transit instrument
Bill Barton, FRAS, The Barlow lens

Home Observatory

David Murton, home observatory constructed May-July 2015

Telescopes at Orwell Park Observatory

James Appleton, Telescopes at Orwell Park Observatory