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BAA Tutorials

BAA Tutorials

 Filters for visual observations of deep sky objects
Intermediate
Owen describes the development of deep sky filters, how they work and how to use them
Owen Brazell, 2019 Apr 06
BAA Sky Notes
Understanding image defects (part 1)
Starting Out
David Arditti, 2019 Mar 24
Atmospheric Refraction
Intermediate
David discusses the way light is bent in the atmosphere.
David Basey, 2019 Mar 02
The Barlow lens
Intermediate
A close look at the workings of this popular accessory.
David Basey, 2019 Feb 10
'Through which end do I look?' – the absolute basics of using a telescope
Starting Out
David Arditti, 2019 Jan 20
Observing asteroid occultations with digital cameras
Intermediate
Tim provides an introduction to this interesting form of observing.
Tim Haymes, 2018 Dec 17
What's the best telescope for an adult beginner?
Starting Out
David Arditti, 2018 Nov 27
Absolute Beginners no.14: Astronomical ‘seeing’
Starting Out
Paul G. Abel, 2018 Nov 22
The size of things
Starting Out
A brief guide to the scale of the universe.
David Basey, 2018 Nov 16
Kitchen table collimation of a Cassegrain-type reflector
Intermediate
Russ details an indoor method for aligning the optics of a catadioptric telescope
Russ Slater, 2018 Oct 27

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