Philosophical transactions, Vol. L. Part I. For the year 1757. / Giving some account of the present undertakings, studies, and labours, of the ingenious, in many considerable parts of the world.

by Various; Royal Society

September 14^d 14^h 0' the Comet preceded θ Geminorum 1° 31' 35" in right ascension, and was 11' 35" more southerly. The apparent right ascension of θ Geminorum was then 99° 11' 40" and its declination 34° 13' 25" north. Hence the right ascension of the Comet was 97° 40' 5" and its declination 34° 1' 50" north.

Sept. 17^d 13^h 0' a small star (whose right ascension was 109° 55' 20" and declination 31° 27' 40") preceded the Comet 47' 10" in right ascension, and was 12' 30" more northerly. Hence the Comet's right ascension was 110° 42' 40" and its declination 31° 15' 10" north.

Sept. 19^d 15^h 17' a star (whose right ascension was 118° 29' 40" and declination 28° 9' 45") preceded the Comet 1° 14' 0" in right ascension, and was more southerly 15' 45". Hence the Comet's right ascension was 119° 43' 40" and declination 28° 25' 30" north.

Sept. 23^d 15^h 57' a star (whose right ascension was 134° 55' 45" and declination 22° 15' 55" north) preceded the Comet 12' 30" in right ascension, and was 29' 0" more northerly. Hence the Comet's right ascension was 135° 8' 15" and its declination 21° 46' 55" north.

Sept. 24^d 15^h 21' the Comet had the same declination with a small star that preceded it 10' 15" in right ascension. This star's right ascension was afterwards found to be 138° 13' 45" and its declination 20° 5' 20". Hence the Comet's right ascension was 138° 24' 0" and its declination 20° 5' 20" north.

Sept. 28^d 16^h 22' the Comet followed Regulus 1° 7' 12" in right ascension, and was 14' 45" more northerly. The right ascension of Regulus being then 148° 51' 13" and its declination 13° 8' 35" north; the Comet's right ascension was 149° 58' 25" and its declination 13° 23' 20" north.

Sept. 30^d 16^h 24' ρ Leonis (whose right ascension was 155° 0' 10" and declination 10° 32' 53" north) followed the Comet 18' 45" in right ascension, and was 7' 53" more northerly. Hence the Comet's right ascension was 154° 41' 25" and its declination 10° 25' 0" north.

October 2^d 16^h 48' the 37th star Sextantis. Hevel. in the British Catalogue (whose right ascension was 158° 21' 25" and declination 7° 38' 40" north) preceded the Comet 32' 50" in right ascension, and was 3' 20" more southerly. Hence the Comet's right ascension was 158° 54' 15" and its declination 7° 42' 0" north.

October 3^d 16^h 45' c Leonis (whose right ascension was 162° 2' 15' and declination 7° 24' 0" north) followed the Comet 1° 12' 55" in right ascension, and was 56' 40" more northerly. Hence the Comet's right ascension was 160° 49' 20" and its declination 6° 27' 20" north.

October 4^d 17^h 0' d Leonis (whose right ascension was 162° 0' 15" and declination 4° 54' 57" north) preceded the Comet 40' 15" in right ascension, and was more southerly 20' 53". Hence the Comet's right ascension was 162° 40' 30" and its declination 5° 15' 50" north.