top right – Page 2 – British Astronomical Association

A photograph of the bearded Brorsen, sitting in a chair with arms folded

The tortuous discovery of the Gegenschein, false zodiacal light & zodiacal band – Brorsen vs Jones

It is routinely thought that Brorsen discovered the Gegenschein and zodiacal band in 1854. Here, it is argued that priority

Figure 1. O−C plot for all eclipses of HS 2325 with respect to the linear ephemeris in Equation 1. Published eclipse timings are in black, those by the author in red.

Evidence of abrupt changes in the orbital periods of

We report evidence from eclipse timing that two otherwise apparently normal cataclysmic variables have experienced abrupt changes in their orbital

The telescope array - appearing as six white telescope tubes on a single mount - are poised towards the sky in twilight

Condor reveals a second eruption shell of the dwarf nova

Z Cam is a cataclysmic variable star whose visual magnitude varies between 10 and 14. This system is the prototype

A new outreach discussion forum

Just launched, AstroMailbox is a new astronomy communicators’ e-mail discussion list which brings together anyone interested in astronomy outreach. It

The 2023–2024 western elongation of Venus: interim report

On 2023 Aug 13, Venus passed through inferior conjunction and returned to the morning skies, embarking on the 2023–’24 western

Comet prospects for 2024

Long-period comet 2023 A3 (Tsuchinshan–ATLAS) promises to be bright. Halley-type 12P/Pons–Brooks makes a return and may reach 4th magnitude. Three

A large black truss-tube telescope in a white room.

Observers team up to study the enigmatic dwarf nova CG Draconis

It has been said that variable-star observing is a team sport. Even though observations are made by individuals, it is

The waxing crescent Moon, oriented with Mare Crisium roughly central.

A word from the Lunar Section Director

Marking one year since formally assuming the role of Director of the Lunar Section, Dr Tony Cook discusses his enthusiasm

The sixe speakers, standing and smiling in front of a wooden wall in an interior room

2023 Historical Section Meeting

Twenty-seven BAA members and guests attended the 2023 Historical Section Meeting, held in the Lyttelton Theatre at the Birmingham

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