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Archives

The white telescope tube is mounted on an equatorial mount upon a plinth.

The New South Wales Branch of the BAA & the Sydney University Observatory

The first university observatory in Australia was opened at the University of Sydney in 1909, with help from members of

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Black and white pencil drawings of Mars arranged in five rows and labelled A to T, with key features appearing as described in the caption

The opposition of Mars, 2020: Part II

A report of the Mars Section. Director: R. J. McKim. We report seasonal timings of the appearances and disappearances of

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Seven drawings, labelled a to g. The first four appear yellow, red, blue and white, respectively, due to filters used. Cloud markings appear as dark smudges. The last three are in white (integrated) light, i.e. with no filter.

The 2021–’22 eastern elongation of Venus

A report of the Mercury & Venus Section. Director: P. G. Abel This paper covers observations of Venus made by

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Mazin and ten schoolchildren pose by his telescope in the sun, with rugged mountains in the background

Searching for sky

  My story began with a photo. I was reminiscing over an old photo album and found a picture of

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The primary mirror is face-up, with the secondary mirror unit at its centre. Both are exposed; the front corrector plate has been removed

Maintaining a Schmidt–Cassegrain

Schmidt–Cassegrain telescopes (SCTs) are versatile, compact and effective instruments for visual observing of all kinds, and for imaging of smaller

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The star RW Cephei is central and distinctly reddish in colour

Mass ejection causes RW Cephei to dim

The cool hypergiant RW Cep has been keeping observers busy this year due to its unusual fade, which some have

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David smiles with an astronomy book open in his hands, with bookshelves behind

Obituary: Professor David W. Hughes (1941–2022)

Professor David W. Hughes – academic, inspiring astronomer, and past Vice-President of the BAA – died in 2022 June.  

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The watch, face-up, in a hinged wooden box

A watch owned by A. A. C. Eliot Merlin

Letter to the Editor, from Mr Steve Wyn-Harris   I am a sheep and beef farmer in New Zealand, but

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Sky notes for 2023 August & September

The autumnal equinox on Sep 23 heralds longer evenings for observing, and we now have outer planets to enjoy on

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Past BAA covers

Have your say on the future of the BAA Journal

  A new short survey asks for your help in planning the direction of your Journal. It takes just five

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