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Astronomy Articles by Stephen Tonkin


Amateur Astronomy & Earth Sciences

Bogbits and Beantins!, Vol 1 No 3, Jan 1996
Amateur Telescope Making on the 'Net, Vol 1 No 4, Feb 1996
A Homebuilt Refractor (Part 1), Vol 1 No 9, Aug/Sep 1996
A Homebuilt Refractor (Part 2), Vol 1 No 10, Oct 1996


AstroGear Today

Equipment Reviews:
Alpine Innovations Bino-bandit
Celestron SkyMaster 15×70 Pro Binoculars
Celestron Skymaster Pro 20×80 Binoculars
Explore Scientific CF 102mm f/7 APO Triplet
Rethinking the Equatorial Mount: iOptron’s CEM40
Opticron Adventurer 10x50 Binocular
Opticron Adventurer T WP 10×50 Binoculars
Orion GiantView 25×100 Binoculars
Orion Monster Parallelogram Mount
Orion Paragon Plus Parallelogram Mount
Pentax SP 20×60 WP Binoculars
Sky-Watcher SolarQuest Solar Go-To Tracking Mount
Synta Technology Corporation 90mm Maksutov Telescope
United Optics MS 10×50 (non-ED) Binoculars
United Optics MS 16×70 (non-ED) Binoculars
Comparison: Six 10x50 Binoculars
Vixen SG 6.5×32 WP ED Astro-Bino

"How To" Articles:
How to Hand-hold Binoculars
Steadying Your Binoculars


BBC Sky at Night magazine

Monthly Column:
Binocular Tour, April 2013 onwards

Book Reviews:
The Constellation Observing Atlas, #106, Mar 2014
How to Find the Apollo Landing Sites, #113, Oct 2014
The 2015 Guide to the Night Sky, #116, Jan 2015
Atlas of the Great Comets, #120, May 2015
Stargazing - Beginners guide to astronomy, #140, Jan 2017
100 Things To See In The Night Sky, #152, Jan 2018

Equipment Reviews:
Opticron Oregon 11x70, #104, Jan 2014
Vixen BT 70 Binocular Telescope, #105, Feb 2014
Olivon 10x50 QB, #115, Dec 2014
Celestron Echelon 16x70, #122, Jul 2015
Opticron Adventurer 10x50, #128, Jan 2016
Canon 12x36 IS III, #133, Jun 2016
Altair Astro 100, #138, Nov 2016
Celestron UpClose 10x50, #139, Dec 2016
Opticron Adventurer II WP 10x42, #151, Dec 2017
Canon 14x32 IS, #154, Mar 2018
Opticron Oregon 20x80, #155, Apr 2018
Helios Stellar II 16x80 , #162, Nov 2018
"6 of the best 10x50s £100-£200", #163, Dec 2018
Celestron SkyMaster Pro 20x80 and 10Micron BM100 Leonardo mount, #176, Jan 2020
Opticron Imagic IS 12×30, #178, Mar 2020
Orion Monster Parallelogram mount + GiantView 25×100 binoculars, #180, May 2020
Bresser Spezial Astro SF 15x70, #185, October 2020

How To... guides:
Hand-hold a Binocular Steadily, #107, Apr 2014
Build a Simple Solar Finder, #109, Jun 2014
Make a Binocular Dew Shield, #112, Sep 2014
Use "home and garden" items to steady binoculars, #118, May 2015
Collimate your binocular, #131, Apr 2016
Make a Right-angled Polarscope Adaptor, #156, May 2018
Clean your binocular, #164, Jan 2019
Make a Narrow-beam LED pointer, #181, Jun 2019

The Guide:
The value of binoculars, #128, Jan 2016
Star hopping, #130, Mar 2016
Stellar spectral classification, #140, Jan 2017
Twilight, #150, Nov 2017
Star Catalogues, #155, Apr 2018
Getting started with binocular astronomy #159, Aug 2018

Skills
Jupiter at opposition (naked eye and binocular), #130, Mar 2016
Five Top Tips for Binocular Astronomy, #183, Aug 2020
Ten Autumn Targets for Binoculars, #183, Aug 2020

Miscellaneous
Jupiter at opposition (naked eye and binocular), #130, Mar 2016


The Deep-Sky Observer

Guide v5.0 – A Review, No11, Jul 1997
Night Has a Thousand Eyes (book review), No 123, Winter 2000/1


The Encyclopedia of Astronomy and Astrophysics

I have contributed to the paper and electronic version of this excellent encyclopedia.


Popular Astronomy

Messier Marathon Master Class, Vol 45 No 4, Oct 1998
Origins of the Messier List, Vol 46 No 4, Oct 1999
The Millennium Quiz (with Peter Grego), Vol 48, No 1, Jan 2001
The Great Nebula in Orion, Vol 48, No 1, Jan 2001
Turn Left at Orion (book review), Vol 48, No 3, Jul 2001
Computerising a budget mount, Vol 51, No 3, Jul 2004


Practical Astronomy

Astronomy and the Imagination (book review), Vol 1 No 4, Feb 1995
Nocturnal Manoeuvres, Vol 1 No 7, May 1995


Resurgence

Darken our Light, No 171, Jul/Aug 1995


Secrets of the Universe

I contributed the following pages to this fact-file part-work:

Amateur Spectroscopy
Beating the Seeing
Development of Reflectors
Mirror Making
Telescope Tune-up