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Ophiuchus is part of the Zodiac, too

12Aug28_430

Tonight for August 8, 2015

The faint constellation Ophiuchus the Serpent Bearer appears in the southwest sky on late August and September evenings, above the bright ruddy star Antares, the brightest in the constellation Scorpius the Scorpion. On our feature chart at top, we show the ecliptic – the sun’s path in front of the constellations, highlighting Scorpius and just the southern tip of Ophiuchus.

Image credit: Till Grednar On a dark, moonless night, look for Ophichus above the bright ruddy star Antares

What is the ecliptic?

The official boundary lines as displayed on the above chart were drawn up by the International Astronomical Union in the 1930s. The photo to the right of the constellation Ophiuchus labels Ophiuchus’ brightest star, Rasalhague, and Scorpius’ brightest star, Antares. Rasalhague marks the head of Ophiuchus but is nowhere as bright as Antares, the star that depicts the Scorpion’s beating heart.

The Zodiac – or ‘pathway of animals’ – marks the plane of Earth’s orbit around the sun.  The signs of the Zodiac are familiar to all who read online astrology advice.  There are 12 familiar signs of the Zodiac: Aries, Taurus, Gemini, Cancer and so on.  Ophiuchus is sometimes called the 13th or “forgotten” constellation of the Zodiac.  The sun moves in front of Ophiuchus from about November 30 to December 18 each year. And yet no one ever says they’re born when the sun is in Ophiuchus.

Born late November to middle December? Here’s your constellation

Image credit for the Ophiuchus the Serpent Bearer: Wikipedia

On sky maps, Ophiuchus the Serpent Bearer is depicted as holding Serpens the Serpent, which is considered a separate constellation. According to ancient Greek star lore, Ophiuchus is Asclepius, the physician who concocted a healing potion from the Serpent’s venom, mixing it with the Gorgon’s blood and an unknown herb. This potion gave humans access to immortality, until the god of the underworld appealed to Zeus to reconsider the ramifications of the death of death.

Even today, the Staff of Asclepius – symbol of the World Heath Organization and other medical organizations – pays tribute to the constellation Ophiuchus the Serpent Bearer.

Are you a night owl or early bird? If so, look for the waning moon to be in the vicinity of the bright star Aldebaran from late night till dawn. In fact, as seen from eastern Europe and the Middle East, the moon will actually occult – cover over – Aldebaran sometime on the night of August 8-9. In Moscow, Russia, people can watch the moon occult Aldebaran on August 9, from 1:25 to 2:13 a.m. Moscow Standard Time. Click here to find out more occultation times, but remember to convert from Universal Time to the local clock reading in your time zone.

The waning moon descends for the eastern horizon until it turns new on August 14, 2015. The green line depicts the ecliptic - Earth's orbital plane projected outward onto the constellations of the Zodiac.

The waning moon descends for the eastern horizon until it turns new on August 14, 2015. The green line depicts the ecliptic – Earth’s orbital plane projected outward onto the constellations of the Zodiac.

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