Abstract

Mercury is in superior conjunction on January 14 and at greatest eastern elongation, 18° from the sun, on February 13. During the second week of February the planet should be visible just above the western horizon in the evening twilight. Venus appears too close to the sun to be easily observed now, being in superior conjunction on January 29. Mars is increasing in brightness as its distance from the earth decreases, its magnitude changing from +1-6 on January 1 to +0.8 on February 28. It is moving through the constellations of Libra and Scorpius, passing 1 ° south of Saturn on January 2 and 5° north of Antares on February 24. At that time it is rising about one hour after midnight. Jupiter, magnitude 2. 1, is in Taurus, ending its retrograde motion on February 10. At that time it is high in the southern sky during the early evening and sets about three hours after midnight. Table I lists the transits of Jupiter's satellites and their shadows, which can be observed at convenient times on the Pacific Coast.

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