Venus will be sitting pretty at dusk Our sister planet Venus dominates the evening sky this month, at magnitude -3.8. On Wednesday, look for the waxing crescent moon sitting on the south-southwest horizon about 7:20 p.m. Venus will be right above the crescent, and Mars will be to the west in Virgo. Venus will travel south along the horizon through the month, from Libra, through Scorpius, and into Ophiuchus.
On this day, 23rd September, 1846, the German astronomer Johann Gottfried Galle at the Berlin Observatory, discovered the planet Neptune. The French astronomer Urbain-Jean-Joseph Le Verrier first postulated the existence of the planet by observing the discrepancy in motion of Uranus.
The planet is currently in the constellation Capricornus.
At 10:45 a.m. Monday, in the blink of an eye, the sun will be directly over the equator, marking the beginning of fall at least for the folks living in the Northern Hemisphere.
Autumn officially arrives with equinox Monday Autumn officially arrives at 11:44 a.m. Monday when the Sun will cross the celestial equator in the sky heading south, explain astronomers at the Pisgah Astronomical Research Institute.
This Friday night, the waning gibbous moon will rise after 9:30 p.m. Until 11 p.m. it will be partially covering the bright star cluster Pleiades, otherwise known as the Seven Little Sisters.
Keep your telescopes handy for a wonderful celestial activity - Uranus will shine at its brightest when it aligns directly with the Sun and the Earth on Saturday.
If you live anywhere to the north of a line that runs across North America from roughly Queen Charlotte Island in British Columbia southeast to near Jacksonville, Florida and clear skies are forecast for Friday evening, Sept. 19, then be sure to be outside during the mid-evening hours and watch for the rising of the waning gibbous moon. If you have binoculars or a telescope you will also see the moon moving in front of the famous Pleiades star cluster.
A 94% waxing gibbous Moon will occult the planet Neptune (magnitude 7.8) in the constellation Capricornus, the sea goat, at about 1:18 UT on the 13th September. The event will be visible from North America and Canada. On the 14th, the near full moon will have a close encounter with Uranus.