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The Journal of the British Astronomical Association, 2016 December

Volume 126, Number 6

Next year’s comets, the final resting place of Rosetta, a Europe-wide occultations symposium, a remarkable and ingenious historical telescope... this could be the most varied issue of the Journal yet...

Log in or join the BAA today to view this journal online. A full list of contents is also available.

Selected highlights from this Journal:

Also in this issue

The 2016 George Alcock Memorial Lecture: Systematic visual photometry of variable stars
Visual photometry is the earliest form of photometry of variable stars, but is today considered to be of limited value due to its low accuracy compared with photometry undertaken by electronic means. This presentation is intended to challenge this view.
John Toone

Refereed Papers

Mr William Strachan and his remarkable telescope
The observing career of Mr William Strachan of Bournemouth, a BAA member from 1908 to 1935, is described. Despite severe lifelong disability he managed to regularly observe the Sun, variable stars and a few other objects for 26 years. His observing career in later life was only made possible by using a custom made polar refractor Coudé system which he used regularly from 1924 to 1934.
Martin Mobberley
Saturn in 2001 − 2002
The south face of the rings was displayed nearly to its maximum effect during this presentation. The various occultations of the planet and its satellites by the Moon were further highlights of the apparition.
Richard McKim
Short paper: Perigee lunar eclipses
Details are presented of lunar eclipses occurring very close to perigee, for the years 1000 to 3000.
René Bourtembourg & Jean Meeus
Short paper: Polar alignment of the equatorial mount: how accurate must it be for trail-free astrophotography?
This paper develops and presents a rule of thumb as to how accurate the polar alignment of an equatorial mount must be, in order to avoid trailing stars in astrophotography.
Simon White
Supernova 2012fr and the distance to NGC 1365
BVRI and unfiltered MicroObservatory CCD observations of SN 2012fr covering the first 100 days following its discovery are reported.
Martin J. F. Fowler