2019-06-01+Sky+and+Telescope

PAGE 64 PAGE 30 PAGE 74 WORKBENCH: 3D-Printing a Binoscope ELUSIVE PREY: Face-on Spirals IMAGING: In Pursuit of Perfect Points T ...

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2 INTERACTIVE SKY CHART Find out what the sky looks like for your time and place. You can also print the chart as a handout. sky ...

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skyandtelescope.com • JUNE 2019 5 Get W rldly SHOPATSKY.COM Celestial Earth Mercury Venus Mars Moon Mars Topo Moon Topo Each has ...

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Catching the Waves Thank you for Robert Naeye’s excellent article “Pulsar Timing Arrays” (S&T: Jan. 2019, p. 22). The illust ...

ºJune 1944 Cometary Aurora? “[Sylvain] Arend, at Uccle, Belgium, noticed a nebulous object of 13th mag- nitude with a nucleus, c ...

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SP AC EIL skyandtelescope.com • JUNE 2019 11 SPACE MISSIONS Israeli Lander Launches for the Moon A SPACEX FALCON 9 ROCKET car- r ...

NEWS NOTES 12 JUNE 2019 • SKY & TELESCOPE GALAXIES Gaia Peeks at Local Group’s Past and Future ASTRONOMERS HAVE USED the Eur ...

skyandtelescope.com • JUNE 2019 13 pLOFAR captured radio emission (orange) in galaxy cluster Abell 1314, superimposed on an inve ...

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skyandtelescope.com • JUNE 2019 15 SN 2011fe ...

“Standard” Candles uSCENARIO #1: SINGLE DEGENERATE A white dwarf paired with a much larger star — such as an aged red giant — ca ...

skyandtelescope.com • JUNE 2019 17 “You have a mysterious agent — some kind of hidden assassin — who came along and caused this ...

“Standard” Candles 18 JUNE 2019 • SKY & TELESCOPE a typical Type Ia. But then, roughly 60 days after it exploded, its spectr ...