January 2018 Sky
|1||Mercury at greatest elongation west (23° from Sun, morning sky) at 20h UT. Mag. −0.3.|
|1||Moon at perigee (closest to Earth) at 21:54 UT (356,565 km; angular size 33.5′). Closest of 2018.|
|2||Full Moon at 2:24 UT.|
|3||Earth at Perihelion (closest to Sun) at 6h UT. The Sun-Earth distance is 0.983284 a.u. or 147.1 million kilometers.
• Sun at Aphelion and Perihelion (Anthony Ayiomamitis)
|3||Moon near Beehive cluster M44 (morning sky) at 20h UT.
• Beehive Cluster (Wikipedia)
• M44: The Beehive Cluster (APOD)
|3||Quadrantid Meteor Shower peaks at 22h UT. Active between December 28 and January 12. Produces up to 120 meteors per hour. Radiant is in northern Boötes.
• Quadrantids (Wikipedia)
• The Quadrantids (Gary Kronk)
|5||Moon near Regulus (morning sky) at 8h UT. Occultation visible from Alaska, northern Canada, Greenland and Iceland.
• Occultation of Regulus (IOTA)
|8||Last Quarter Moon at 22:25 UT.|
|9||Venus at superior conjunction with the Sun at 6h UT. Passes into the evening sky (not visible).|
|11||Moon near Jupiter and Mars (60° from Sun, morning sky) at 10h UT. Mags. −1.9 and 1.4.|
|13||Mercury 0.6° S of Saturn (20° from Sun, morning sky) at 8h UT. Mags −0.3 and 0.5.|
|15||Moon at apogee (farthest from Earth) at 2h UT (distance 406,464 km; angular size 29.4′).|
|17||New Moon at 2:17 UT. Start of lunation 1176.
• Lunation Number (Wikipedia)
|24||First Quarter Moon at 22:20 UT.|
|27||Moon near Aldebaran (evening sky) at 9h UT. Occultation visible from NW Canada, Alaska, NE Asia.
• Occultation of Aldebaran (IOTA)
|30||Moon at perigee (closest to Earth) at 10h UT (358,994 km; angular size 33.3′).|
|31||Moon near Beehive cluster M44 (midnight sky) at 7h UT.|
|31||Total Eclipse of the Moon begins at 12:52 UT and ends at 14:08 UT. Mid-eclipse at 13:30 UT. Partial phases begin at 11:48 UT and end at 15:11 UT. The Moon will appear red-orange in color during totality (the color of Earth’s sunsets). Visible from west North America, the Pacific, Australia, New Zealand, Asia, Russia and India.
• Lunar Eclipses: 2011 – 2030 (NASA)
• Total Lunar Eclipse of 2018 January 31 (PDF) (NASA)
|31||Full Moon at 13:27 UT.|
|January 2018 Sky All times Universal Time (UT).|