Obtaining solar eclipse and planetary transit contact times using DSLR imaging
A simple method is presented to determine the times of contact of solar eclipses and planetary transits across the solar disk.
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Archives
A BAA spectroscopy initiative
Spectroscopy is now a practical possibility for amateur astronomers motivated to produce scientifically useful observations. The BAA is therefore launching
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Absolute Beginners No. 5: Right ascension and declination
Paul G. Abel takes a look at celestial coordinate systems.
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Recalling the 2003 transit of Mercury
As described in the previous Journal, Mercury will cross the Sun’s disk on Monday May 9. The timings for the
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Gerhana Matahari Total – 2016 March 9
Where does Mata Hari come into this? The famous exotic dancer and courtesan, executed as a German spy in 1917,
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