Tag Archives: Castor

Lynx (The lynx)

This faint, northern circumpolar constellation is best seen in March. It is so named because lynx-like vision is required to see its faint stars. Also, it represents the long, stretched out body of a lynx. This 28th-largest constellation is located between the Big Dipper, Pollux and Castor of Gemini, and Auriga.  Its only named star is Alsciaukat, which is Arabic for thorn. This constellation’s most notable deep sky object, the Intergalactic Tramp (NGC 2419), is the globular cluster of stars most distant from Earth. The Lynx reaches its highest nightfall ascension in March.
http://en.wikipedia.org/wiki/Lynx_(constellation)

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

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

Cancer (The crab)

CancerCC_croppedCancer, the crab, is a zodiacal constellation of rather dim stars that can be difficult to see in light polluted skies. It is one of the 48 constellations cataloged by 2nd century astronomer Ptolemy. Cancer is located on the ecliptic, half way between Pollux in Gemini and Regulus in Leo, and is highest in the sky at nightfall in March. If Cancer’s stars are not visible, try using binoculars, and then look again once the various stars in the constellation have been located. Cancer is home to two Messier objects, M44 (the Beehive Cluster, or Praesepe) and M67.
http://en.wikipedia.org/wiki/Cancer_(constellation)

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

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

Gemini (The twins)

Constellation GeminiGemini, the twins, is a zodiacal constellation that was also one of the 48 constellations cataloged by 2nd century astronomer Ptolemy that remain among the 88 modern constellations. This constellation located above Orion’s left shoulder, and between Taurus and Cancer on the ecliptic. It is highest in the sky at nightfall in March, and is quickly identified by two rather bright stars of approximately equal brightness, Castor and Pollux, that represent each of the Gemini twins. The ecliptic reaches its northernmost separation from the celestial equator in Gemini, and the Sun’s arrival at this point marks the Summer Solstice.  The annual Geminids is a prominent annual meteor shower that peaks between December 13th and 14th. Only one Messier object, M35, is located in Gemini.
http://en.wikipedia.org/wiki/Gemini_(constellation)

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

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