Atkinson’s Observatory [AtO] (c.1896), Cardiff, established by George A.S. Atkinson at his home. It consisted of a ‘telescope house’ with a hinged roof that contained a 6-inch reflector (Winks 1896, 79).
Cardiff City Observatory [CaCO] (1906-1979), Penylan, Cardiff, a public observatory equipped with a 12-inch reflector, formerly at the private observatory of Archdeacon Conybeare Bruce at St. Nicholas, Vale of Glamorgan (1870s-1882) and later owned by Franklen Evans (Jones 2014, 78-9; Stroobant 1907, 54).
Mee’s Observatory [MeO] (1890s-1900), ‘Tremynfa’, Llanishen, Cardiff , the private observatory of Arthur Mee (1860-1926) at his home. It housed a 8 1/2-inch reflecting telescope by Calver (Jones 2014, 77; Stroobant 1907, 55).
Jenkins’s Observatory [JO] (1842- ), a private observatory of John Jenkins on the roof of 50 Wind Street. Swansea. A watch maker it housed a Transit telescope providing a time service to the nearby port (Jones 2014, 74).
Marina Towers Observatory [MTO] (1993-2010), Marine Quarter, Swansea, built as part of port regeneration. The purpose-built structure was leased to the Swansea Astronomical Society who installed 20-inch Shafer-Maksutov telescope. The society removed the telescope in 2010 – status of observatory is unclear.
Pigott’s Llanwit Major observatory [POLMG] (1777-81), Frampton House, nr. Llantwit Major, established by Nathaniel Pigott on his estate in 1777. Equipped with a transit by Sisson, a six-foot achromatic by Dollond, and several smaller telescopes. He attained his latitude, and in 1778-9 discovered some double stars with a transit circle and then removed to Bootham, York (ODNB; McConnell and Brecht 1999).
Scott’s Observatory [SO] (c.1900s), Breacon Road, Merthyr Tydfil, established by William Scott at his home. The building contained a reflecting telescope and fitted with a revolving roof (Obit., JASW, 1907, i-ii).
Swansea Astronomical Society Observatory [SASO] (1954-76), Cefn Coed Hospital, Swansea, established by the SAS. Due to light pollution the observatory was moved to a darker site at the University playing fields at Fairwood Common.
Swansea Astronomical Society Observatory [SASO1] (1978-?), Fairwood Common, Swansea, established by the SAS who transferred their existing observatory from its Cefn Coed Hospital in Swansea – present status unclear.