The Sandoval Signpost

An Independent Monthly Newspaper Serving the Community since 1988


November Night Sky

Facing south, looking almost straight up, November 15th at 9:30 p.m.

Save our starry night skies

Be a considerate neighbor: Reduce nighttime glare. Shield all your outside lights downward (or turn them off completely) and enjoy the beautiful, starry night sky.

Flying high


The cool, crisp fall nights are great for observing the night sky, so dress warmly and venture outside to enjoy the view.

At about 9:30 p.m. this month, you will find Pegasus flying high overhead. The body of the horse consists of four stars in a square pattern just south of straight up: Algenib, Markab, Scheat, and Alpheratz. Actually, Alpheratz is shared with the constellation Andromeda and is considered the brightest star in Andromeda. The front legs are formed by two crooked lines of stars, leading from Scheat to the west and north. Another meandering line of stars from Markab to Enif forms the neck and head and snout. Parts of Andromeda leading from Alpheratz to the northeast depict the hind legs.

In 1995, the first extrasolar planet circling a sun-like star was found around 51 Pegasus. Observations showed that the planet orbits very close to the star, suffers estimated temperatures around twelve hundred degrees Celsius, and has a minimum mass about half that of Jupiter.

IK Pegasus, or HR 8210, is a binary star about one hundred-fifty light years from the Sun. It is just barely bright enough to be seen with the unaided eye. The smaller star in this binary is a massive white dwarf. It is the closest known candidate that could produce a supernova. When the larger star evolves into a red giant, its radius is expected to balloon out to a radius where the white dwarf can siphon matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses, it may explode as a Type Ia supernova. However, in the time it will take for the system to go supernova, it will have moved a considerable distance from Earth and will pose no threat. A supernova would need to be within about twenty-six light years of the Earth to significantly impact our biosphere.

In Greek mythology, Pegasus was a winged horse. He was the son of Poseidon and Gorgon Medusa. Athena caught and tamed Pegasus, and presented him to the Muses at Mount Parnassus. After he became the horse of the Muses, he was at the service of the poets. Later, Pegasus aided the hero Bellerophon (also known as Perseus) in his fight against both the Chimera and the Amazons.

Another story tells that the Bellerophon was told by Polyeidos to sleep in the temple of Athena, where the goddess visited him in the night and presented him with a golden bridle. The next morning, still clutching the bridle, he found Pegasus drinking at the Pierian spring. When the steed saw the bridle, he approached Bellerophon and allowed him to ride. Bellerophon slew the Chimera on Pegasus’ back, and then tried to ride the winged horse to the top of Mount Olympus to see the gods. However, Zeus sent down a gadfly to sting Pegasus, causing Bellerophon to fall back to Earth, where he lived out his life in misery as a blinded cripple as punishment for trying to act as a god. Afterward, Pegasus found sanctuary on the sacred mountain, where he carried Zeus’ thunderbolts and was ridden by Eos, the goddess of dawn.


• Mercury will make an appearance this month east-southeast. Look for the thin crescent Moon near the horizon. On the 8th, about forty-five minutes before sunrise, Mercury will be above and to the left, while the star Spica will be above and right. Bright Venus will hover about thirty degrees above the horizon. Arcturus can also be to the left of Venus.

• Venus will shine brightly in the early morning sky. You can’t miss it in the southeast. On the 5th, look for Venus near the Moon before sunrise. Then, two hours after sunrise, use binoculars to find the Moon again and see the planet Venus in daylight.

• Mars can be found in the northeast after sunset. On the 26th, about two and a half hours after sunset, watch the Moon slowly slide past Mars over the course of the evening. Castor and Pollux are to the left of the Moon while Capella is about thirty degrees above the Moon.

• Jupiter is low in the southwest at sunset. You can briefly spot a crescent Moon below Jupiter about forty-five minutes after sunset on the 12th.

• Saturn is in the southeast before sunrise. On the 4th, look for a spectacular lineup one hour before sunrise. The star Spica and Mercury will be very low in the east-southeast. Then, on an arching line, Venus will be higher in the southeast followed by the Moon, Saturn, and finally the star Regulus in the south-southeast.

• The Moon is new at 5:33 am MST on the 9th and full at 7:70 a.m. MST on the 24th.

If you have a question or comment for Charlie, you may email him at:



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