4
Columns
October Skies
Oct 10 2019 03:01 PM |
cookman
in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Quiet Sun, Planet Plotting, October Moon Focus Constellations: Hercules, Lyra, Aquila, Cygnus, Pegasus, Pisces, Aries, Andromeda, Perseus, Taurus. Auriga, Camelopardalis, Ursa Major, Draco, Ursa Minor, Cepheus, Cassiopeia
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Cosmic Challenge: The Deer Lick Group
Oct 01 2019 05:03 AM |
PhilH
in Phil Harrington's Cosmic Challenge
The autumn sky abounds with little bundles of galaxies scattered throughout its stars. One of the best known is the group of 7 galaxies that surround the magnificent spiral NGC 7331 in Pegasus, the Flying Horse. An observer could easily spend an hour or more just soaking in all that this small patch of sky has to offer.
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September 2019 Skies
Sep 06 2019 07:36 AM |
cookman
in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Autumnal Equinox, Planet Plotting, September Moon Focus Constellations: Bootes, Corona Borealis, Ophiuchus, Hercules, Lyra, Aquila, Cygnus, Pegasus, Andromeda, Perseus, Camelopardalis, Ursa Major, Draco, Ursa Minor, Cepheus, Cassiopeia
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Cosmic Challenge: Emission Nebula Simeis 57
Sep 01 2019 10:16 AM |
PhilH
in Phil Harrington's Cosmic Challenge
Simeis 57 is one of the most intriguing emission nebulae in the late summer sky, yet it is almost unknown to visual observers. Photographers, however, know it as a pair of opposing arcs of reddish light, one extending to the north, the other to the south, that appear to be spinning symmetrically away from a common center. Its unusual appearance has led to its two nicknames: the Propeller Nebula or the Garden Sprinkler Nebula.
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August 2019 Skies
Aug 07 2019 02:37 PM |
cookman
in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers/Asteroid Surprises, Planet Plotting, August Moon Focus Constellations: Bootes, Corona Borealis, Ophiuchus, Hercules, Lyra, Aquila, Pegasus, Cygnus, Draco, Cepheus, Cassiopeia, Perseus, Camelopardalis, Ursa Minor, Ursa Major
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Cosmic Challenge: Planetary nebula IC 4732
Aug 01 2019 04:55 AM |
PhilH
in Phil Harrington's Cosmic Challenge
M22 is right in the thick of it, not far from the galactic center of the Milky Way. As such, it has lots of company. One particular planetary nebula proves a worthy adversary through 10- to 14-inch scopes: IC 4732. IC 4732 lies just 1.4° north-northwest of M22. Cataloged at magnitude 12.1, its tiny disk is difficult to pick out from the mob of field stars -- difficult, but not impossible.
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July 2019 Skies
Jul 05 2019 12:14 PM |
cookman
in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Intergalactic Space, Planet Plotting, July Moon Focus Constellations: Coma Berenices, Virgo, Bootes, Corona Borealis, Ophiuchus, Hercules, Lyra, Aquila, Cygnus, Draco, Cepheus, Cassiopeia, Camelopardalis, Ursa Minor, Ursa Major
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Cosmic Challenge: Lunar craters Armstrong, Aldrin, and Collins
Jul 05 2019 11:22 AM |
PhilH
in Phil Harrington's Cosmic Challenge
Last month, I challenged you to find all six of the Apollo landing sites. This month, to commemorate the 50th anniversary of Neil Armstrong's and Edwin Aldrin's historic landing and moon walk, we return to Mare Tranquilitatis, the scene of Apollo 11, to find three small craters that bear the names of that historic mission's crew members.
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June 2019 Skies
Jun 05 2019 03:21 PM |
cookman
in This Month
Highlights: Comet Journal, Martian Landers, Meteor Showers, Summer Solstice, Planet Plotting, June Moon Focus Constellations: Cancer, Leo, Leo Minor, Coma Berenices, Virgo, Bootes, Corona Borealis, Ophiuchus, Hercules, Lyra, Cygnus, Draco, Cepheus, Cassiopeia, Camelopardalis, Ursa Major, Ursa Minor
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Cosmic Challenge: Apollo Landing Sites
May 31 2019 11:46 AM |
PhilH
in Phil Harrington's Cosmic Challenge
Between July 1969 and December 1972, six teams of United States astronauts ventured across the gap between Earth and Moon to land and walk on that distant world. Have you ever visited their landing sites? If not, let's do so now.
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