EarthSky Tonight—Oct 2, Jupiter is a guide to Great Square
Learn the Great Square of Pegasus tonight, and you can use these stars to star-hop to the Andromeda galaxy
EarthSky Tonight—Sept. 30, What bright star flashes red and green in northeast?
The atmosphere splits or “refracts” the star’s light, just as a prism splits sunlight.
EarthSky Tonight—September 27, Summer Triangle high overhead on autumn evenings
Even as autumn is beginning, we still have several months to watch the large asterism known as the Summer Triangle. T
EarthSky Tonight—Sept 26, The first point of Aries marks March equinox point
Aries often comes first because this constellation marked the sun’s location at the time of the spring equinox between about 1800 B.C. and 1 A.D. Its relationship to the coming…
EarthSky Tonight—September 25, Look for daytime moon after sunrise September 25-28
When is the best time to see the moon in the sky during daylight hours?”
EarthSky Tonight—September 24, Harvest moon, Jupiter still out dusk to dawn
Why does the Full Harvest Moon in particular – the full moon closest to the autumn equinox – bring about dusk-till-dawn moonlight for several nights in succession?
EarthSky Tonight-Sept 23 Harvest Moon, Jupiter, equinox
September 2010 presents the only time in your lifetime that you will be able to witness the moon and Jupiter’s simultaneous all-night appearance on the equinox
EarthSky Tonight—September 22, Harvest moon, Jupiter, Autumn equinox
The equinox falls at 9:09 p.m. on this Wednesday evening, according to clocks set to Mountain Daylight Time. That translates to 3:09 a.m. tomorrow – on Thursday, September 23 –…
EarthSky Tonight—September 21, Jupiter’s closest opposition since 1963
Today Earth passes between the sun and Jupiter, placing Jupiter opposite the sun in our sky. Astronomers call this event an opposition of Jupiter.
EarthSky Tonight—September 20, Fastest sunsets of the year around equinox time
The fastest sunsets (and sunrises) occur at or near the equinoxes.