Unidad documental compuesta GPP/3/12 - ‘Declinations and Right Ascensions of Stars Observed by me, particularly variable ones; Catalogue of Stars by Halley; Latitude of York reduced.’

1 folder

Folder of loose papers consisting of:

(21a)
Catalogue of remarkable fixed stars, according to Halley (1720), as given in R. Heath’s ‘Astronomia accurata’ (1760). Pigott notes that comparisons lead him to suspect that a great part of this catalogue is reduced from Flamsteed’s observations.

(21b)
Mean Right Ascension of fixed stars observed and computed by E. Pigott – reduced to January 1st 1784. Several of these are variable stars.

(21c)
Reduction to find the Right Ascension of the variable stars in Cygnus’ Breast, in Cygnus’ Neck, Flamsteed’s No.17 Cygni, and Eta Cygni; calculations dated 1782-1783.

(21d)
Reduction of the R.A. of the variable in Hydra; calculations dated 1784.

(21e)
Reductions for the declinations: for the variable stars in Cygnus’ Breast and in Cygnus’ Neck, the variable star in Hydra, and Flamsteed’s 17th Cygni ; calculations dated 1782-1785.

(21f)
Reduction of the R.A. of the stars occulted by the Moon when eclipsed 10th September 1783 ; calculations dated 1784.

(21g)
Astronomical observations 1782-1785 to determine the position of the observatory at York.

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