The ‘harvest moon’ rises Friday. And it competence be a supermoon. And there’s an eclipse.

September 15, 2016 - Supermoon

The “harvest moon” will arise on Friday — a full moon closest to a autumnal equinox, that occurs Sept. 22 this year. In Europe, Africa and Asia the full moon will also be a small bit darker, interjection to a penumbral lunar obscure that starts around 1 p.m. Eastern time.

The moon officially becomes full during 3:05 p.m. on Friday. In Washington, a object sets during 7:14 p.m., and a moon rises during 7:22 p.m.

If we need some-more than a full moon to get we outward with your eyes on a sky, this full moon is also a supermoon. Maybe. It’s kind of a controversy.

Astrologer Richard Nolle tangible a supermoon, and a tenure has unequivocally taken off. Sometimes it seems as if every moon is a supermoon. (If all is super, zero is super.) Nolle pronounced that a supermoon is a new or full moon that occurs when the moon is within 90 percent of its closest proceed to Earth in a given orbit.

Long story short, Nolle has a list of all supermoons, and so does a former NASA astrophysicist Fred Espenak, though their lists disagree. Espenak’s list includes an additional supermoon in 2016 — this month’s collect moon. EarthSky has a good explanation on because these lists differ. Strangely enough, Espenak’s list seems to meet Nolle’s strange clarification some-more than Nolle’s list does.

Go figure.

If we need even some-more of a reason to go sky-gazing, check out a splendid Venus (-3.9 magnitude) early in a evening. Look to a west-south; a splendid star Spica is underneath Venus, to a planet’s left. In a same neighborhood, a reddish Mars and a ringed Saturn in a south-southwestern sky. Both are bright, about 25 degrees adult from a horizon, around 7:45 p.m.

Europe won’t need any some-more reason to demeanour adult during a Friday night sky than a penumbral lunar eclipse. For those in North America, we can still locate all of a murky obscure movement on, with play-by-play and explanation Friday afternoon.

Officially, a obscure starts during 12:54 p.m. Eastern time and ends during 4:54 p.m., notes Espenak. The deepest prejudiced of a obscure will be during 2:54 p.m. Eastern Time (6:54 p.m. GMT). This is a low penumbral eclipse, he said, as it has a clever penumbral obscure bulk of 0.9080. It will final about a half-minute bashful of 4 hours.

What is a penumbral lunar eclipse? It occurs when a moon appears to bestir by a lightest apportionment of Earth’s shadow. Earthlings contingency remember that object always casts a shade into space. The core of a shade is a umbra, so when a moon passes by a umbra, we get prejudiced and sum lunar eclipses. In this case, a moon sashays by a penumbra; it’s a weaker, lighter shadow. Think archery target: umbra is a center, and a penumbra surrounds it.

As all eclipses go to a family or array of eclipses, this eventuality belongs to Saros 147 — a sincerely immature one that started in 1890 — and a array runs by 3134. Friday’s obscure will be a eighth among 70 events. This is a final penumbral obscure in a array for about 1,000 years. For a initial totally overwhelming sum lunar obscure in this series, round Jun 6, 2449, on your calendar.

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