Jeffers Foundation

ASTRONOMY

Astronomy

April, 2018

Highlights
Highlights
Although there are 824 million miles between them, Saturn and Mars sit a mere 1.35 degrees apart in the sky on April 1. The Moon joins the duo on April 7. Since Mars is much closer to Earth, it quickly moves away from Saturn. Closer still is the Moon, which is well clear of the pair by the very next night.

Morning Sky

Mercury starts the month lost in the glare of the Sun. It reaches E Sunrise Inferior Conjunction on April 1 as it passes in front of the Sun, as seen from the Earth. It finally emerges mid-month, just eight degrees above the eastern horizon at sunrise. It reaches Greatest Western Elongation on April 29 (27 degrees from the Sun). Mars teams up with Saturn in the beginning of the month, rising just a half degree apart at 3 am on April 2, joined by a waning quarter Moon on April 7. Mars spends the month speeding away, and the two are separated by 14.25 degrees by the end of the month.

Evening Sky

Venus emerges from behind the Sun at the beginning of the month; look for it 18 degrees above the western horizon at sunset. This increases to almost 24 degress by the end of the month, making it easier to spot. Venus will be joined by a very slender Moon on April 17, and the Moon continues east to join Aldeberan the next night. Six days later, you can see the Moon near Regulus at sunset. Jupiter rises into the late evening sky at about 11 pm each night. It is joined by the Moon on April 3 and again on April 30. Watch for them near the southwest horizon just before sunrise.

Sun Declination

PHENOMENA

2nd, Mars 1.27 degrees south of Saturn - 6:53 am

8th, Moon apogee (251,123 miles) - 12:31 am

8th, Last Quarter Moon - 2:17 am

15th, New Moon Maple Sugar (Ojibwe) - 8:57 pm

18th, Moon near Aldebaran in west - after sunset

20th, Moon perigee (229,108 miles) - 9:41 am

22nd, Lyrids Meteor Shower peak - 1:22 pm

22nd, First Quarter Moon - 4:46 pm

24th, Moon near Regulus rising in east - 2:16 pm

29th, Full Moon - 7:58 pm

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