Astronomy - September 2015

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  1. FORTUNATE LINEUP
    M46 is a gorgeous open cluster in
    the constellation Puppis. In the same
    line of sight — but definitely not part
    of the cluster — is planetary nebula
    NGC 2438. The stars in M46 lie 5,500
    light-years away, while the planetary is
    some 2,500 light-years closer. (3.6-inch
    Astro-Tech AT90EDT refractor at f/6.7,
    SBIG ST-8300 CCD camera, LRGB image
    with exposures of 120, 40, 40, and 40
    minutes, respectively) • Dan Crowson

  2. UNDERWHELMING GLOB
    Observers often overlook magnitude
    9.5 NGC 6366 in the constellation
    Ophiuchus the Serpent-bearer. It cov-
    ers only as much sky as one-quarter
    of the Full Moon and is so sparse that
    it barely looks like a globular cluster
    at all. (10-inch Astro Systeme Austria
    astrograph at f/6.8, SBIG STL-11000M
    CCD camera, LRGB image with expo-
    sures of 75, 70, 60, and 50 minutes,
    respectively) • Ron Brecher

  3. TRIPLE TREAT
    The crescent Moon, complete with
    earthshine, passed a duo of planets
    in February. Reddish Mars sits to our
    satellite’s lower left while Venus shines
    much brighter a bit farther away.
    (Nikon D800E DSLR, 28-300mm Nikkor
    lens set at 98mm and f/5.3, ISO 6400,
    0.2-second exposure, taken February
    20, 2015, from Newark, California)



  • Jacques Guertin



  1. THE DARK NIGHT
    The Bat (NGC 6995) is one of the dens-
    est parts of the eastern Veil Nebula
    complex in the constellation Cygnus
    the Swan. This supernova remnant has
    an apparent diameter of 3°, or an area
    larger than 33 Full Moons. (14-inch
    Officina Stellare RC-360AST Ritchey-
    Chrétien reflector, Apogee Alta U16M
    CCD camera, Hα/OIII/RGB image with
    exposures of 240, 150, 12, 12, and 12
    minutes, respectively) • Bob Fera

  2. IN A MIRROR DIMLY
    Reflection nebula van den Bergh 106
    lies in the constellation Scorpius. It
    forms part of the vast nebulous com-
    plex in that area and surrounds the
    triple star Rho (ρ) Ophiuchi. (8-inch
    Officina Stellare RH200 astrograph,
    Quantum Scientific Instruments QSI
    683wsg CCD camera, LRGB image with
    2.5 hours of exposures) • Remus Chua


Send your images to:
Astronomy Reader Gallery, P. O. Box
1612, Waukesha, WI 53187. Please
include the date and location of the
image and complete photo data:
telescope, camera, filters, and expo-
sures. Submit images by email to
[email protected].

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