The Night Sky in January

    Abstract

    NEW moon occurs on January 14d. 05h. 06m., U.T., and full moon on January 26d. 06h. 41m. The following conjunctions with the moon take place: Jan. 4d. 20h., Jupiter 4° S.; Jan. 12d. 08h., Mercury 0·2° S.; Jan. 12d. 21h., Mars 2° S.; Jan. 17d. 14h., Venus 4° N.; Jan. 25d. 18h., Saturn 0·5° N. Mercury is in conjunction with Mars on Jan. 26d. 15h., Mercury being 0·4° N. The following occultations of stars brighter than magnitude 6 take place: Jan. 1d. 20h. 56·5m., 8 Leon, (R); Jan. 18d. 17h. 52·8m., 33 Pise. (D); Jan. 21d. 17h. 27·5m., μ Ceti (D); Jan. 24d. 2h. 15-2m., i Taur. (D); Jan. 25d. 2h. 21·7m., +20° 1105m (D); Jan. 26d. 18h. 24·0m., 63 Gemi. (D). The times refer to the latitude of Greenwich, and D and R refer to disappearance and reappearance, respectively. Mercury rises 112 hours before the sun at the beginning, and 36 minutes before the sun at the end, of the month. It is stationary on Jan. 2 and reaches its greatest westerly elongation on Jan. 13. Venus is conspicuous in the evening hours, setting at 19h. 51m., 20h. 29m. and 21h. 08m. at the beginning, middle and end of the month, respectively. Mars rises about three-quarters of an hour before the sun at the beginning of the month and is not well placed for observation. Jupiter, in the constellation of Virgo, is a conspicuous object in the morning hours and rises at 23h. and 21h. at the beginning and end of the month, respectively. Saturn, in the constellation of Gemini, can be seen throughout the night, setting at 6h. 52m. in the middle of the month.

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