top right – British Astronomical Association

The brighter comets of 2021

This report describes and analyses observations of the brighter or more interesting comets at perihelion during 2021, concentrating on those

Miss Whitehead’s Moon – An Edwardian lady’s lunar sketchbook

The brief astronomical career of a lesser-known astronomer and member of the British Astronomical Association is examined with reference to

A black and white image of Merv, smiling, in middle age

Mervyn Vincent Jones (M. V. Jones) – amateur astronomer of Maryborough, Queensland

Mervyn Vincent Jones (1927 October 21 – 2016 August 6), known as M. V. or Merv Jones, was an Australian

Two panels. In (a), on the left, the nebula is almost invisible (2020 October). In (b), on the right, the reflection nebula is easily seen as a bright fan shaped area; this was taken in 2023 August

Variable nebulae report, 2020–2023

Due to their unpredictability, variable nebulae have, in recent years, become popular observing targets among some members of the BAA

Eight drawings showing the sequential progression of the eclipse, from first to fourth contact.

Total eclipse expedition to Waxahachie, Texas, USA

We present observations made by an expedition of BAA members to see the total solar eclipse on 2024 Apr 8

Imaging the sodium cloud of Io

Jupiter’s moon Io is the source of materials including sulphur and sodium that can be expelled from its vicinity into

Four images of Jupiter, arranged in a square: these are yellow and blue (top left and right), red (bottom left) and RYB (bottom right). Key feaures are described in the caption.

The opposition of Jupiter, 1955–’56

During the previous apparition, there was a weak Revival of the South Equatorial Belt. This was followed during 1955–’56 by

Noctilucent cloud over Loch Lomond. The clouds appear electric blue, bright against a dark sky which graduates to an orange glow above the mountainous horizon. Waves on the Loch's surface are in the foreground.

Noctilucent cloud over Britain & Western Europe, 2023

Noctilucent cloud forms in the mesosphere at an altitude of about 83 km and appears annually in northern latitudes between

A plot of (B-V) (x-axis) against (U-B) (y-axis), with fitted curves corresponding to the locations on the plot of cluster members (represented with scatter points). The fits decrease at low (B-V), level off in the middle, then decrease more steeply again.

A free, Excel-based application for UBVIc photometric studies of galactic open clusters

Due to their discrete brightness and uncrowded appearance, open clusters are accessible to many amateur instruments. Moreover, their photometric study

Lunar domes near the crater Cleomedes

The Nectarian-aged Crisium basin is characterised by prolonged lunar volcanism ranging from the Imbrian age to the Eratosthenian period. In

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