If you want to see planets this month, you’re best to look in the eastern sky before sunrise. There you’ll see Mars, Venus, and Jupiter congregating and brightening over the next many weeks, along with a visit next week by the waning crescent Moon. But the planet Saturn still lingers in the western evening sky in early October after sunset, tangled among the claws of the fearsome scorpion represented by the constellation Scorpius and its next-door neighbor Libra [Read more…] about Saturn and Antares Fade in the Western Sky
Share This:Solar System Observing
Articles about how to understand, find and see solar system objects including planets, the Moon, the Sun, asteroids, meteors, and comets with binoculars, telescopes, and the naked eye.
Harvest Moon Eclipse
On the night and morning of September 27-28, 2015, skywatchers will enjoy a total lunar eclipse at Harvest Moon, the first full Moon of northern autumn. This eclipse will be particularly striking because it peaks just an hour after the Moon makes its closest monthly approach to Earth, so it will appear 13% larger than the last total lunar eclipse on April 4, 2015. This “supermoon” eclipse will be visible for all of North and South America, western Europe, and western Africa. From extreme western North America, the Moon will rise during the eclipse. From South Africa, the Moon will set during the eclipse. For observers in Australia and New Zealand, the eclipse will not be visible [Read more…] about Harvest Moon Eclipse
Share This:Southern African Solar Eclipse of September 13, 2015
Observers in southern Africa will enjoy a partial solar eclipse this weekend on September 13, 2015. This eclipse will be visible from all parts of South Africa, southern parts of Madagascar, Mozambique, Zambia, and Zimbabwe. It will also be visible for the very few observers over a wide area of the Indian Ocean and Antarctica. This is a partial eclipse– not total– so sky and Earth will not darken completely, and you will need proper solar filtering to enjoy this event [Read more…] about Southern African Solar Eclipse of September 13, 2015
Share This:Venus Returns as the “Morning Star”
The planet Venus has returned to the sky at a “morning star”, shining brightly in the eastern sky before sunrise in the constellation Cancer, the Crab. Venus is by far the brightest object in the sky except for the Sun and Moon. It shines at magnitude -4.5, nearly as bright as it gets, and spans about 44″ when seen in a telescope. The face of the planet is a magnificent slender crescent shape just 18% illuminated by the Sun.
Venus is joined by Jupiter, which rises a little later and shines a little fainter. The two planets made a dramatic display in the evening sky earlier in 2015 and will now dominate the morning sky for the rest of the year. Too low in the sky to reveal much detail, Jupiter is still worth a look in binoculars or a small telescope, if just to see its fat disk and its four biggest moons make their way around the big planet. The planet now appears about 31″ across, much smaller than Venus, but fully illuminated.
Between the two bright planets, you also see the ochre glow of Mars, still relatively faint at magnitude +1.8 and just 3.8″ across. It’s far too small and distant to reveal any detail in a telescope. The planet will slowly brighten over the next 8 months on the way to opposition in May 2016. Just below Mars, closer to Jupiter, you see the icy white star Regulus in the constellation Leo, shining slightly brighter at magnitude +1.4.
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