Astronomy - February 2014

WWW.ASTRONOMY.COM 61 it basically means you have to supply your own mount and tripod. Apart from its optics, this 4.3-inch (110 ...

62 ASTRONOMY t FEBRUARY 2014 Explore THE TRUMPLER classes of clusters SKYGAZING F rom earliest times, observers have gazed at lo ...

WWW.ASTRONOMY.COM 63 motions of stars in the Pleiades. A few months later, Schlesinger invited Trumpler to come to Allegheny as ...

64 ASTRONOMY t FEBRUARY 2014 Clusters composed of bright and faint stars; generally a few very bright and some moderately brigh ...

WWW.ASTRONOMY.COM 65 ASTROSKETCHING BY ERIKA RIX Realistic eyepiece sketches “How do I make my eyepiece sketches look more reali ...

66 ASTRONOMY t FEBRUARY 2014 T his will be my final column. It has been a pleasure sharing what I could about imaging and pro- c ...

FOLLOW ASTRONOMY OBSERVING TOOLS COMMUNITY WWW.ASTRONOMY.COM 67 Video camera Pro-com Electronics Ottawa, Canada Pro-com packages ...

68 ASTRONOMY t FEBRUARY 2014 THE CRESCENT NEBULA NGC 6888 in Cygnus is a bubble of gas carved out of the interstellar medium by ...

WWW.ASTRONOMY.COM 69 MELLOW YELLOW Van den Bergh 135 is one of the rare reflection nebulae with a yellowish color. Most of them ...

READER GALLERY 8 9 70 ASTRONOMY t FEBRUARY 2014 BY ANY OTHER NAME The Swan Nebula (M17) goes by many names. Some observers call ...

NASA/Advanced Concepts Laboratory NASA/JPL/Space Science Institute NASA/ JPL-Caltech/UCLA/MPS/DLR/IDA WWW.ASTRONOMY.COM 71 COMIN ...

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74 ASTRONOMY t FEBRUARY 2014 Multiple shells of gaseous material form a cocoon around galaxy PGC 6240 in the southern constellat ...

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SOUTHERN SKY MARTIN GEORGE describes the solar system’s changing landscape as it appears in Earth’s southern sky. April 2014: Ma ...

STAR DOME Magnitudes Sirius 0.0 1.0 2.0 3.0 4.0 5.0 Open cluster Globular cluster Diffuse nebula Planetary nebula Galaxy tHe all ...

CE STAR COLORS: Stars’ true colors depend on surface temperature. Hot stars glow blue; slightly cooler ones, white; intermediate ...

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