Tag Archives: October

Piscis Austrinus (The southern fish)

Piscis AustrinusPiscis Austrinus, the southern fish, never rises very high above the southern horizon from our northern hemisphere location. It is situated below a point between Capricornus and Aquarius, and it reaches its highest nightfall ascension in October. In a light-polluted sky, 1st magnitude Fomalhaut might be the only star visible to the unaided eye. This constellation is related to one of the 48 constellations cataloged by 2nd century astronomer Ptolemy.
http://en.wikipedia.org/wiki/Piscis_Austrinus

IAU Piscis Austrinus chart, Sky & Telescope magazine (Roger Sinnott and Rick Fienberg), June 5, 2011.
IAU Piscis Austrinus chart, Sky & Telescope magazine (Roger Sinnott and Rick Fienberg), June 5, 2011.

© James R. Johnson, 2014.
jim@jrjohnson.net

Equuleus (The pony)

Equuleus, DelphinusEquuleus, the pony, is a small, dim constellation located just north of the celestial equator. It bears no resemblance a pony, but it is one of the 48 constellations cataloged by 2nd century astronomer Ptolemy. Equuleus is the 2nd smallest constellation, and it has no stars brighter than 4th magnitude. It is located just outside of the Summer Triangle between  Aquila and Pegasus, and it reaches its highest nightfall ascension in October. Kitalpha (Alpha Equulei) is its brightest star shining at 3.9th magnitude. Equuleus contains a few faint NGC deep space objects.
http://en.wikipedia.org/wiki/Equuleus

IAU Equuleus chart, IAU and Sky & Telescope magazine (Roger Sinnott and Rick Fienberg), June 5, 2011.
IAU Equuleus chart, IAU and Sky & Telescope magazine (Roger Sinnott and Rick Fienberg), June 5, 2011.

© James R. Johnson, 2014.
jim@jrjohnson.net

Delphinus (The dolphin)

Dephinus, EquuleusDelphinus is a very small, but easily identified northern constellation. It is perhaps the most interesting of the four small constellations located near the Summer Triangle as it loosely resembles a dolphin. It consists of only five main stars, and is one of the 48 constellations cataloged by 2nd century astronomer Ptolemy. It is located south of Cygnus, and is flanked by Aquila and Pegasus. It reaches its highest nightfall ascension in October.
http://en.wikipedia.org/wiki/Delphinus

IAU Delphinus chart, Sky & Telescope magazine (Roger Sinnott and Rick Fienberg), June 5, 2011.
IAU Delphinus chart, Sky & Telescope magazine (Roger Sinnott and Rick Fienberg), June 5, 2011.

© James R. Johnson, 2014.
jim@jrjohnson.net

Capricornus (The sea goat)

Constellation CapricornusCapricornus, the sea goat, is a zodiacal constellation and one of the 48 constellations cataloged by Ptolemy in the 2nd century. It is located on the ecliptic between Sagittarius and Aquarius, and is south of the Summer Triangle and the Great square of Pegasus.  Capricornus reaches its highest nightfall ascension in October. Its alpha star, Deneb Algedi (Delta Capricorni), is just brighter than magnitude 3, and can be seen under most reasonable conditions. The remainder of the constellation is rather dim and difficult to see in light-polluted urban skies. The globular star cluster, M30, is the only Messier object in this constellation.
http://en.wikipedia.org/wiki/Capricornus

IAU Capricornus chart, Sky & Telescope magazine (Roger Sinnott and Rick Fienberg), June 4, 2011.
IAU Capricornus chart, Sky & Telescope magazine (Roger Sinnott and Rick Fienberg), June 4, 2011.

© James R. Johnson, 2014.
jim@jrjohnson.net