Space News Update - February 24, 2017 In

Space News Update - February 24, 2017 In

Space News Update - February 24, 2017 In the News Story 1: Seven Earth-Sized Planets Orbit Dim Star Story 2: More Earth-like than moon-like Story 3: Supernova Blast Wave Still Visible after 30 Years Departments The Night Sky ISS Sighting Opportunities Space Calendar NASA-TV Highlights Food for Thought Space Image of the Week Seven Earth-Sized Planets Orbit Dim Star Story #1 Story #2 Story #3 The Night Sky ISS Sightings NASA-TV Space Calendar Food for Thought Image of the Week More Earth-like than moon-like Story #1 Story #2 Story #3 The Night Sky ISS Sightings NASA-TV

Space Calendar Food for Thought Image of the Week Supernova Blast Wave Still Visible after 30 Years Story #1 Story #2 Story #3 The Night Sky ISS Sightings NASA-TV Space Calendar Food for Thought Image of the Week The Night Sky Story #1 Story #2 Story #3 The Night Sky ISS Sightings NASA-TV Space Calendar Food for Thought Image of the Week Friday, February 24 Sirius blazes high in the south on the meridian by about 8 or 9 p.m. now. Using binoculars, examine the spot 4 south of Sirius (directly below it when on the meridian). Four degrees is

somewhat less than the width of a typical binocular's field of view. Can you see a dim little patch of speckly gray haze? It shows especially well in the photo here. That's the open star cluster M41, about 2,200 light-years away. Sirius, by comparison, is only 8.6 light-years away. Saturday, February 25 Have you ever seen Canopus, the second-brightest star after Sirius? In one of the many interesting coincidences that devoted skywatchers know about, Canopus lies almost due south of Sirius: by 36. That's far enough south that it never appears above your horizon unless you're below latitude 37 N (southern Virginia, southern Missouri, central California). And there, you'll need a very flat south horizon. Canopus crosses due south just 21 minutes before Sirius does. When to look? Canopus is precisely due south when Beta Canis Majoris Mirzam the Announcer, the star about three finger-widths to the right of Sirius is at its highest point due south (roughly 8:00 p.m. now, depending on how far east or west you are in your time zone). Look straight down from Mirzam then. Sunday, February 26 Mars and Uranus are in conjunction this evening, 0.6 apart (as seen around the time of nightfall for the Americas). Outdoors, spot Mars to the upper left of Venus blazing in the west. Mars is magnitude 1.3; Uranus is only one-seventieth as bright at magnitude 5.9; you'll need at least binoculars. You'll find Uranus to Mars's left or upper left. They'll both fit in a telescope's low-power field of view. Nothing else that close to Mars is that bright. Look east after dark this week for the constellation Leo already climbing up the sky. Its brightest star is Regulus, and the Sickle of Leo extends upper left from there. As the saying goes, Leo announces spring or at least the approach of spring. New Moon (exact at 9:58 a.m. EST). An annular eclipse of the Sun crosses parts of southernmost South America, the South Atlantic, and east-central Africa. Much larger areas of South America and Africa get a partial eclipse. Monday, February 27 Can you catch the thin crescent Moon far below Venus after sunset, as shown here? The best view may be more like 30 minutes after sunset. The Moon is only about 1 days old at the time of dusk in the Americas. Binoculars will help find it in a bright sky. Tuesday, February 28 Now the thickening Moon in twilight forms a roughly fist-sized triangle with bright Venus and fainter Mars. Sky & Telescope ISS Sighting Opportunities Story #1 Story #2 Story #3 ISS For Denver: Date Visible Max Height

Appears Disappears Mon Feb 27, 5:47 AM < 1 min 12 10 above SSE 12 above SE The Night Sky ISS Sightings NASA-TV Space Calendar Food for Thought Image of the Week Sighting information for other cities can be found at NASAs Satellite Sighting Information MAVEN Launch November 18, 2013 NASA NASA-TV Highlights Story #1 Story #2 Story #3 The Night Sky ISS Sightings NASA-TV Space Calendar Food for Thought Image of

the Week (all times Eastern Time Zone) 9 a.m., Saturday, February 25 - Replay of NASA Science News Briefing on Discovery Beyond Our Solar System (all channels) 1 p.m., Saturday, February 25 - NASMS STEM in 30 Taking the Fast Lane to Orbit: The Technology of Rockets and Racecars (NTV-1 (Public)) 4 p.m., Saturday, February 25 - Replay of NASA Science News Briefing on Discovery Beyond Our Solar System (all channels) 6 p.m., Saturday, February 25 - NASMS STEM in 30 Taking the Fast Lane to Orbit: The Technology of Rockets and Racecars (NTV-1 (Public)) 8 a.m., Sunday, February 26 - Replay of NASA Science News Briefing on Discovery Beyond Our Solar System (all channels) 2 p.m., Sunday, February 26 - Replay of STEM in 30 Taking the Fast Lane to Orbit: The Technology of Rockets and Racecars (NTV-1 (Public)) 9 p.m., Sunday, February 26 - Replay of STEM in 30 Taking the Fast Lane to Orbit: The Technology of Rockets and Racecars (NTV-1 (Public)) Watch NASA TV online by going to the NASA website Space Calendar Story #1 Story #2 Story #3 The Night Sky ISS Sightings NASA-TV Space Calendar Food for Thought Image of the Week Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb

Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 25 25 25 25 25 25 25

25 25 25 25 25 25 25 25 25 25 26 26 - Comet 73P-AV/Schwassmann-Wachmann Closest Approach To Earth (1.404 AU) Comet C/2014 R3 (PANSTARRS) Closest Approach To Earth (6.829 AU) Apollo Asteroid 2017 CP1 Near-Earth Flyby (0.009 AU) Aten Asteroid 5604 (1992 FE) Near-Earth Flyby (0.034 AU) Amor Asteroid 2017 BN3 Near-Earth Flyby (0.065 AU) Asteroid 3808 Tempel Closest Approach To Earth (0.979 AU) Asteroid 9941 Iguanodon Closest Approach To Earth (1.078 AU) Asteroid 4134 Schutz Closest Approach To Earth (1.187 AU) Asteroid 11365 NASA Closest Approach To Earth (1.260 AU) Asteroid 6600 Qwerty Closest Approach To Earth (1.488 AU) Asteroid 26733 Nanavistor Closest Approach To Earth (1.997 AU) Asteroid 3623 Chaplin Closest Approach To Earth (2.095 AU) Asteroid 17744 Jodiefoster Closest Approach To Earth (2.143 AU) Asteroid 881 Athene Closest Approach To Earth (2.164 AU) Asteroid 7749 Jackschmitt Closest Approach To Earth (2.750 AU) Brian Schmidt's 50th Birthday (1967) Comet 73P-AS/Schwassmann-Wachmann At Opposition (1.224 AU) Comet 73P/Schwassmann-Wachmann Closest Approach To Earth (1.380 AU) Comet 73P-C/Schwassmann-Wachmann Closest Approach To Earth (1.381 AU) Comet 315P/LONEOS Closest Approach To Earth (1.597 AU) Comet 234P/LINEAR At Opposition (1.905 AU) Comet 202P/Scotti At Opposition (1.964 AU) Comet 331P/Gibbs Closest Approach To Earth (2.089 AU) Comet 37P/Forbes At Opposition (2.689 AU) [Feb 18] Apollo Asteroid 2017 CQ32 Near-Earth Flyby (0.068 AU) Apollo Asteroid 2005 QB5 Near-Earth Flyby (0.093 AU) Atira Asteroid 418265 (2008 EA32) Closest Approach To Earth (1.418 AU) Asteroid 5860 Deankootz Closest Approach To Earth (1.594 AU) Asteroid 3229 Solnhofen Closest Approach To Earth (1.677 AU) Asteroid 24102 Jacquecassini Closest Approach To Earth (1.691 AU) Asteroid 12760 Maxwell Closest Approach To Earth (2.363 AU) Asteroid 21564 Widmanstatten Closest Approach To Earth (2.501 AU) 10th Annivesary (2007), Rosetta, Mars Flyby [Feb 21] Annular Solar Eclipse (Visbile from Chile, Argentia, West Africa)

JPL Comet 73P-N/Schwassmann-Wachmann Perihelion (0.974 AU) Space Calendar Space Calendar Story #1 Story #2 Story #3 The Night Sky ISS Sightings NASA-TV Space Calendar Food for Thought Image of the Week Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb

Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb 26 26 26 26 26 26 26 26 27 27 27 27 27 27 27 27 27 27 27 27 27 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28

28 - Comet 73P-G/Schwassmann-Wachmann Closest Approach To Earth (1.373 AU) Comet 18D/Perrine-Mrkos Perihelion (1.646 AU) Comet 331P/Gibbs At Opposition (2.090 AU) Apollo Asteroid 2016 FU12 Near-Earth Flyby (0.042 AU) Apollo Asteroid 2014 HP4 Near-Earth Flyby (0.073 AU) Asteroid 70715 Allancheuvront Closest Approach To Earth (1.317 AU) Asteroid 6442 Salzburg Closest Approach To Earth (1.745 AU) Asteroid 2097 Galle Closest Approach To Earth (2.928 AU) Mars Passes 0.6 Degrees From Uranus Comet 73P-B/Schwassmann-Wachmann Closest Approach To Earth (1.348 AU) Comet 73P-K/Schwassmann-Wachmann Closest Approach To Earth (1.350 AU) Comet P/2016 A2 (Christensen) At Opposition (3.482 AU) Comet 17P/Holmes At Opposition (4.110 AU) Apollo Asteroid 2017 BM123 Near-Earth Flyby (0.032 AU) Asteroid 79896 Billhaley Closest Approach To Earth (1.399 AU) Asteroid 3780 Maury Closest Approach To Earth (2.057 AU) Plutino 90482 Orcus At Opposition (47.127 AU) Online Seminar: In-Situ Resource Utilization (ISRU) - Atmospheric Capture on Mars 75th Anniversary (1942), James Hey's Discovery of Radio Emissions from the Sun Bernard Lyot's 120th Birthday (1897) Pyotr Nesterov's 130th Birthday (1887) Tiankong-1 Kaituozhe-2A Launch Cassini, Distant Flyby of Janus & Pandora Comet 73P-BQ/Schwassmann-Wachmann Perihelion (0.974 AU) [Feb 23] Comet 73P-BC/Schwassmann-Wachmann At Opposition (1.111 AU) Comet 73P-H/Schwassmann-Wachmann Closest Approach To Earth (1.338 AU) Comet P/2010 H2 (Vales) Closest Approach To Earth (2.267 AU) Comet 147P/Kushida-Muramatsu At Opposition (2.330 AU) Comet 306P/LINEAR At Opposition (3.969 AU) Comet C/2014 R3 (PANSTARRS) At Opposition (6.831 AU) [Feb 24] Apollo Asteroid 2017 DJ16 Near-Earth Flyby (0.010 AU) Asteroid 7672 Hawking Closest Approach To Earth (1.314 AU) Asteroid 17942 Whiterabbit Closest Approach To Earth (1.350 AU) Asteroid 17656 Hayabusa Closest Approach To Earth (2.016 AU) 10th Anniversary (2007), New Horizons, Jupiter Flyby 160th Anniversary (1857), Parnallee Meteorite Fall in India JPL Jost Burgi's 465th Birthday (1552) Space Calendar New Technique Puts Exoplanets on the Scale Food for Thought

Story #1 Story #2 Story #3 The Night Sky ISS Sightings NASA-TV Space Calendar Food for Thought Image of the Week It Might Be Possible to Refreeze the Icecaps to Slow Global Warming Space Image of the Week Story #1 Story #2 Story #3 The Night Sky ISS Sightings NASA-TV Space Calendar Food for Thought Image of the Week Hubble Cooperates on Galaxy Cluster and Cosmic Background Image credit: ESA/Hubble & NASA, T. Kitayama (Toho University, Japan)/ESA/Hubble

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