On the day of the equinox, the center of the sun would set about 12 hours after rising – given a level horizon, as at sea, and no atmospheric refraction.
Posts by Bruce McClure
A lunar tetrad – four total lunar eclipses in a row – began on the night of April 14-15. The next one will be on the night of October 7-8.
Mercury, innermost planet of the solar system, swings to its greatest evening elongation – 26 degrees east of setting sun – on September 21, 2014.
A beautiful crescent moon and very bright planet in the eastern predawn sky Saturday morning. Look for star Regulus, too. And Venus?
See the moon near the dazzling planet Jupiter during the predawn and dawn hours on September 18 and 19, 2014. Just look east.
On September 17, 2014, the sun exits the constellation Leo and enters the constellation Virgo. The sun will stay in Virgo until it enters Libra on October 31.
The sun sinks below the horizon faster around the September and March equinoxes than at any other time.
At 2.3 million light-years, the Andromeda galaxy (M31) is the closest spiral galaxy to our Milky Way. It’s the most distant thing you can see with your eye alone.
Take a dip in the Lagoon and Trifid nebulae on these September evenings, especially if you’re in a place where you can see the starlit band of the Milky Way.
Delta Cephei doubles in brightness every 5.36 days. This star and others like it have helped establish the known scale of our galaxy and universe.