The Moon reaches Last Quarter

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The Last Quarter Moon rises with the planet Jupiter simply earlier than midnight, climbing excessive within the early-morning sky.

  • The Last Quarter Moon part is scheduled for October 12 at 2:13 P.M. EDT.
  • On October 12 at 6 P.M. EDT, the Moon will cross 4° north of Jupiter, with Jupiter exhibiting a magnitude of –2.2.
  • Telescopic statement of Jupiter earlier than daybreak on October 12 will reveal all 4 Galilean moons: Callisto, Io, Europa, and Ganymede, with specified relative positions.
  • The celestial area close to Jupiter contains the outstanding stars Castor (magnitude 1.6, a telescopic binary) and Pollux (magnitude 1.2, golden yellow) from the constellation Gemini.

Looking for a sky occasion this week? Check out our full Sky This Week column. 

October 12: The Saturn Nebula shines

Last Quarter Moon happens this afternoon at 2:13 P.M. EDT. A couple of hours later, the Moon passes 4° north of Jupiter at 6 P.M. EDT. The pair rises round midnight and are seen into the early-morning hours of October 14. 

The Moon lies simply to the decrease left of vibrant Jupiter; the planet is now magnitude –2.2, the brightest level of sunshine in that area of the sky, far outshining the celebs. To Jupiter’s higher left are Castor and Pollux, the brightest stars in Gemini the Twins. Pollux is barely brighter (magnitude 1.2) and glows a golden yellow. Castor (magnitude 1.6) is a blue-white star that simply splits into two via a telescope, revealing practically twin stars some 5” aside.

Turning a telescope on Jupiter will present all 4 of its Galilean moons seen earlier than daybreak. Callisto is farthest east, with Io closest to the planet on that facet and Europa between them. Ganymede lies alone to Jupiter’s west. 

Sunrise: 7:09 A.M.
Sunset: 6:23 P.M.
Moonrise: 11:56 P.M.
Moonset: 2:41 P.M.
Moon Phase: Waning crescent (46%)
*Times for dawn, sundown, moonrise, and moonset are given in native time from 40° N 90° W. The Moon’s illumination is given at 10 P.M. native time from the identical location.


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