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22 ASTRONOMY • FEBRUARY 2018 But as the years passed, other astrono- mers discovered FRBs, first at Parkes and then using radio ...
FRB 121102 host galaxy WWW.ASTRONOMY.COM 23 the sky, and its diameter is 2 million times bigger than the light waves it observes ...
SGR 1806–20 24 ASTRONOMY • FEBRUARY 2018 the Richter scale. (By comparison, the 2004 Boxing Day tsunami in Indonesia was trigger ...
500 1,000 1,500 Time (ms) Frequency (MHz) 1,300 1,400 1,500 Flux WWW.ASTRONOMY.COM 25 were published, many of which were quickly ...
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WWW.ASTRONOMY.COM 27 On January 1, 2019, NASA’s Pluto explorer will f ly past a distant, enigmatic world left over from the sola ...
Uranus Saturn Pluto Jupiter Neptune Pluto flyby July 14, 2015 KBO 2014 MU 69 flyby January 1, 2019 New Horizons on November 1, 2 ...
WWW.ASTRONOMY.COM 29 past, so we must rely on Hubble for all our tracking until fall 2018 when we are on final approach. To dete ...
0 50 100 150 AU Polar view Sun Resonant KBOs Scattered disk Detached Classical KBOs 30 ASTRONOMY • FEBRUARY 2018 MU69 is probabl ...
Jupiter Uranus Neptune Pluto Uranus Neptune Pluto Jupiter SaturnSaturn November 1, 2017 5 km 3 miles WWW.ASTRONOMY.COM 31 close- ...
32 ASTRONOMY • FEBRUARY 2018 The Large Magellanic Cloud, the Milky Way’s largest satellite galaxy, contains a vast number of dee ...
WWW.ASTRONOMY.COM 33 view of about 4.5° square. We equipped an SBIG STX-16803 camera with an Astrodon 3 nm Oxygen-III (OIII) fil ...
34 ASTRONOMY • FEBRUARY 2018 A: The density of the plasma in the Sun’s atmosphere falls off precipitously as we move out- ward f ...
WWW.ASTRONOMY.COM 35 raining down from above or being dredged up from below, reacting with the Sun’s ultra- violet radiation to ...
5° PEGASUS CETUS Mercury Venus February 28, 30 minutes after sunset Looking west An inner planet rendezvous (^) 36 ASTRONOMY • F ...
Spy the zodiacal light The ghostly ring of Lamont WWW.ASTRONOMY.COM 37 METEORWATCH The annual calendar of meteor showers suffers ...
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123 45678910 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 SUN. MON. TUES. WED. THURS. FRI. SAT. β γ η α δ μ ζ δ α β α α ...
PATHOF THE PLANETS The planets in the sky These illustrations show the size, phase, and orientation of each planet and the two b ...
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