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Relative to the backdrop stars of the zodiac, the moon moves an average 13o eastward per day. The green line depicts the ecliptic - the sun's annual path and the moon's approximate monthly path through the constellations.

Moon sweeps through Taurus the Bull

Use the waning moon to find Aldebaran, brightest star in Taurus, and the Pleiades star cluster. Plus info on the occultation of Aldebaran by the moon.

Sunrise over Red Sea by Graham Telford

Year’s fastest sunsets around equinoxes

The sun sinks below the horizon faster around the September and March equinoxes than at any other time.


How to find Fomalhaut, the loneliest star

Go outside around mid-evening – and learn to keep the loneliest star company.

Photo Credit: Dan Bush

Daytime moon, west after sunrise

Although we’re past full moon now, the moon is still big and bright. Also, watch each morning in the west for a pale daytime moon floating against a blue sky.

Moon Sept. 18, 2013 by Amy Simpson-Wynne

2016’s close and large Harvest Moon

This year’s Harvest Moon on September 16 happens to be an especially close and large full moon. Some will call it a supermoon. Notice that it’s very bright!


What’s special about a full moon?

The September 16 full moon is the Northern Hemisphere’s Harvest Moon. But all full moons are special. Here’s why.


On September 16, the Harvest Moon

The Northern Hemisphere’s Harvest Moon is the full moon closest to the September equinox. That makes tonight’s moon the Harvest Moon for us north of the equator.


Sun enters Virgo on September 16

The sun will stay in front of the constellation Virgo until it passes in front of the constellation Libra on October 30.

This morning's setting moon - September 8, 2014 at 5:30 a.m. - by Lance Bullion.

2016 Harvest Moon penumbral eclipse

There will be a subtle penumbral lunar eclipse of the 2016 Harvest Moon, visible from half of Earth, unfortunately not North America. Details here.

Photo by Peter Lowenstein

September 16 full moon a supermoon?

Start watching for the waxing moon. The upcoming Harvest Moon is an especially big and bright one, but is it a supermoon? That depends on your definition.