Supporting amateur astronomers since 1890
In this study we examine a lunar dome identified using Lunar Reconnaissance Orbiter Camera Wide-angle Camera (LROC WAC) images, Selene-1 (Kaguya) and Clementine multispectral data, the Chandrayaan-1’s Moon Mineralogy Mapper (M3), and the LROC WAC-based GLD100 DTM.
Read moreThe symbiotic star AG Draconis experienced a double-peaked outburst of 0.6 magnitudes in 2016 April and May. Photometry and spectroscopy through the outburst showed the B-V colour index varying linearly with the V magnitude and enabled the temperature variation of the hot star to be calculated from the changing flux in the Hb and He II 4686Å emission lines.
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Paul Abel explains the basics of meteor spotting
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The annual Perseid meteor shower is one of the most reliable of the year, with an average peak ZHR (Zenithal
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‘Whatever happened to summer?’ was the common refrain issuing from many people’s lips over the last few months, at least
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