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Archives

James Webb Space Telescope: a new era

More than 25 years and $10 billion in the making, the release of the first images from the James Webb

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The night side of Venus, imaged by the WISPR instrument on the Parker Solar Probe. (Courtesy NASA / Johns Hopkins APL / Naval Research Laboratory)

Nightside observations by the Parker Solar Probe: implications for the reality of the Ashen Light

The Parker Solar Probe is a NASA mission designed to investigate the Sun’s outer corona. Launched in 2018, it will

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BAA variable star observers contribute to research on quasars & dwarf novae

The lure of the variables is strong. Variable star observers go out whenever the sky is clear to observe ‘their’

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The brighter comets of 2018

This report describes and analyses observations of the brighter or more interesting comets at perihelion during 2018, concentrating on those

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Six remarkable northerly novae in 2020–’21

During late 2020 and 2021, six relatively bright novae appeared in the northern celestial hemisphere. The light curves of V1391

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ζ Herculis: a case study in the magnitude differences

Two slightly novel methods of visual observation in small telescopes of close, very unequal double stars are presented here and

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Visibility times of Martian afternoon clouds

This paper reports local times when afternoon clouds become telescopically visible for several locations on Mars. With the exception of

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Sky notes for 2022 August & September

At last, we have planets to observe at a reasonable hour for those averse to early rising. As the days

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Noctilucent cloud over Cirencester, UK, imaged by James Weightman on 2020 July 10.

Noctilucent cloud over Britain & Western Europe, 2020

A report of the Aurora & Noctilucent Cloud Section. Director: S. Brantingham. Noctilucent cloud (NLC) forms in the mesosphere at

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Four photographs of Jupiter taken by M. L. Humason with the 200-inch Mount Palomar reflector

Jupiter in 1950 & the aftermath of a South Equatorial Belt Revival

The 37th report of the Jupiter Section. Director: J. H. Rogers. At the previous opposition of 1949 there had been

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