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.Various
History
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.
Various
Science -- Periodicals
September 13ᵈ 12ʰ 37’ mean time (which is likewise made use of in the
following observations), the Comet had the same right ascension with
a small star, whose right ascension was 93° 5’ 30" and declination
34° 36’ 40" north; and it was about two minutes more northerly than
the star. Hence the Comet’s right ascension was 93° 5’ 30" and its
declination 34° 38’ 40" north.
September 14ᵈ 14ʰ 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. 17ᵈ 13ʰ 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. 19ᵈ 15ʰ 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. 23ᵈ 15ʰ 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. 24ᵈ 15ʰ 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. 28ᵈ 16ʰ 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. 30ᵈ 16ʰ 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 2ᵈ 16ʰ 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 3ᵈ 16ʰ 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.
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