This evening hosts a thin, waxing Crescent Moon well below Saturn in the southwest, lowering toward the horizon as twilight yields to the dark, mid-winter skies. The Moon sets before 7 o’clock, and Saturn about an hour later. Look for a slightly larger Moon to the left of Saturn tomorrow evening.

Tomorrow or Tuesday morning offer your best, last views of Mercury, as it starts to lower back into the Sun’s glare, best viewed from 6:25 to 6:40 AM, low in the southeast. Mercury’s swifter orbit takes it around and behind the Sun, though it won’t reach Superior Conjunction (directly behind the Sun) until the end of February.

The brilliant bluish-white star Vega, appearing one quarter of the way above the northwest horizon as darkness settled in by 5:30 PM, does an interesting thing for the next month or so. It will set tonight about 8:15 PM far to the north. But it will rise again 5 hours later at 1:10 AM, climbing into the northeast.