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The Autumn Equinox 2017 Includes A Conjunction Between The Moon And Jupiter


Science & Tech  (tags: autumnal equinox, 2017, Jupiter, Moon, Conjunction, astronomy, humans, nasa, research, science, scientists, space )

Fiona
- 55 days ago - space.com
While residents of the northern half of the Earth prepare for shorter days and colder weather âEUR" the first day of fall is today (Sept. 22) âEUR" there is a sky spectacle to enjoy. And it is a bright show in the sky.



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Comments

Fiona O (597)
Friday September 22, 2017, 6:15 pm
Earth's moon and the planet Jupiter will be close together in the sky tonight and tomorrow, shortly after sunset.

"Try looking for them as soon as the sky darkens; both the moon and Jupiter are bright and should show up in the twilight," Bruce McClure reported on the astronomy website EarthSky, adding that the sky show began Thursday night. "They might be tough from northerly latitudes on Sept. 21, though. So, near the September equinox — with the autumn angle of the sun and moon's path, the ecliptic, low in the twilight sky — the waxing crescent moon will follow the sun beneath the horizon before it gets good and dark."

If it's cloudy on those days, or you miss the show, you can still watch the moon passing by another planet, Saturn, on Sept. 25. You will also see the first-magnitude red star Antares glowing nearby. Antares is so bright that its name is Greek for the "rival of Mars." The Greek word for "Mars" is "Ares." [The 14 Best Skywatching Events of 2017]
 

Fiona O (597)
Friday September 22, 2017, 6:16 pm
The beginning of autumn isn't determined by temperature or even by the number of trees changing color. Instead, it has to do with the tilt of the Earth's axis. The planet has two major movements through space: its spin (the planet completes one spin in a little less than 24 hours, which causes the day-night cycle) and its orbit around the sun (which takes about 365.25 days and causes seasonal change). Earth's axis is tilted at 23.4 degrees as the planet circles the sun.

For each hemisphere, the winter solstice comes when that half of the planet is tilted away from the sun. The summer solstice happens when a hemisphere of the planet is tilted toward the sun. This means that when the Northern Hemisphere experiences fall, the Southern Hemisphere experiences spring. (Both the fall and spring seasonal changes are called equinoxes.)

More information, video, and links on site.

Please note, comment, and forward.
 

Animae C (511)
Friday September 22, 2017, 6:21 pm
YIPEE it's finally Spring in the south, it's been a long & bitterly cold wet winter!
 

Peggy B (39)
Saturday September 23, 2017, 9:01 am
Animae, by bitterly cold do you mean about 50 F / 10 C?
 

Barb SiteIssues V (199)
Saturday September 23, 2017, 11:39 am
Noted, Thank you
 

Janet B (0)
Saturday September 23, 2017, 12:51 pm
Thanks
 

Lenore K (0)
Saturday September 23, 2017, 3:06 pm
ok
 

Ed Site Issues V (196)
Saturday September 23, 2017, 3:07 pm
Noted, Thanks
 

Anne K (139)
Saturday September 23, 2017, 4:55 pm
Thanks, Fiona.
 

Freya H (361)
Sunday September 24, 2017, 9:35 am
No doubt some people will regard this as an omen.
 

Lenore K (0)
Sunday September 24, 2017, 2:18 pm
ok
 

Janet B (0)
Sunday September 24, 2017, 7:13 pm
Thanks
 

Danuta W (1255)
Tuesday September 26, 2017, 3:24 am
noted
 

MmAway M (501)
Wednesday September 27, 2017, 2:24 am
Thank you!

xo
 
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