Annales de l'Observatoire astronomique de Tokyo  5-3

[目次]

• CONTENTS.
• DEFINITIVE ORBIT OF COMET 1827 II (PONS).
• (1) Introduction / 1
• (2) Sun's Coordinates and Star Constants / 1
• (3) Elements and Ephemeris / 4
• (4) Mean Places of the Comparison Stars / 5
• (5) Reduction of Observations and Comparison with Ephemeris / 7
• (6) Normal Places / 10
• (7) Least Square Solution for Definitive Orbit / 10
• (8) Remarks / 13
• ON THE ORBITS OF TWO COMETS OBSERVED IN JAPAN.
• (1) Comet of A.D.1132 / 15
• (2) Comet of A.D.1240 / 18

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