Abstract
FULL moon occurs on Jan. 14d. 21h. 59m., U.T., and new moon on Jan. 29d. 02h. 42m. The following conjunctions with the moon take place : Jan. 17d. 15h., Saturn 3° S. ; Jan. 27d. 06h., Jupiter 5° N. ; Jan. 27d.|08h., Venus 5° N. In addition to these coniunctCoiis with the moon, the following conjunctions with planets occur : Jan. 7d. 18h., Mercury in conjunction with Mars, Mercury 0·8° S. ; Jan. 26d. 08h., Venus in conjunction with Jupiter, Venus 0·02° S. ; Jan. 27d. 21h., Mercury in conjunction with Mars, Mercury 3·6° N. Mercury attains its greatest easterly elongation on Jan. 18 and sets at 16h. 40m., 17h. 52m. and 17h. 23m. on Jan. 1, 15, and 31 respectively, and can be seen for a short time as an evening star. Venus rises at 6h. 15m., 6h. 42m. and 6h. 57m. at the beginning, middle and end of the month respectively, and can be seen shortly before sunrise as a morning star. Mars sets more than an hour after the sun, but is still too close to the sun for favourable observation. Jupiter is in conjunction with the sun on Jan. 1 and rises an hour before sunrise at the end of the month, but is still too close to the sun to be favourably observed. Saturn rises at 20h. 56m., 20h. and 18h. 50m. on Jan. 1, 15 and 31 respectively, stellar magnitude 0·8-0·5, and can be observed throughout the night in the constellation of Leo. occultations of stars brighter than magnitude 6 are as follow : Jan. lOd. 22h. 54·2m., 133 B. Taur. (D) ; Jan. l1d. 02h. 17·3m., 32 Taur. (D) ; Jan. 12d. I7h. 40·7m., 112 B. Auri. (D) ; D refers to disappearance and the latitude of Greenwich is assumed. The earth reaches perihelion on Jan. 3d., when its distance from the sun is about 91,450,000 miles.
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The Night Sky in January. Nature 163, 17 (1949). https://doi.org/10.1038/163017d0
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DOI: https://doi.org/10.1038/163017d0