Astronomy - USA (2020-06)

WWW.ASTRONOMY.COM 21 6 5 The Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) used Spitzer to survey the Milk ...

22 ASTRONOMY • JUNE 2020 The hot, massive stars in the Cat’s Paw Nebula (NGC 6334) in Scorpius emit high- energy radiation that ...

WWW.ASTRONOMY.COM 23 The Eagle Nebula (M16) in Serpens gained fame in the 1990s, when the Hubble Space Telescope photographed t ...

1 ...

WWW.ASTRONOMY.COM 25 Delicate tendrils of dust glow brightly in the infrared as the massive star Zeta Ophiuchi approaches. As Z ...

26 ASTRONOMY • JUNE 2020 2 3 1 ...

WWW.ASTRONOMY.COM 27 4 Infrared radiation often comes from dust that absorbs visible and ultraviolet starlight and then reradia ...

...

WWW.ASTRONOMY.COM 29 These star cities are vast islands of matter, f loating in a nearly limitless sea of inky black space. BY D ...

30 ASTRONOMY • JUNE 2020 in his fourth year as a staff astronomer at Mount Wilson. He relished using the 100-inch Hooker Telesco ...

WWW.ASTRONOMY.COM 31 observing run on the 100-inch telescope ended and he had to leave to accommo- date other observers. At his ...

32 ASTRONOMY • JUNE 2020 Hubble continued imaging Cepheid variables in other spiral nebulae, such as M33 in Triangulum, demonstr ...

WWW.ASTRONOMY.COM 33 This research led to a monumental realization. In 1929, Hubble, with a helpful assist from the Belgian astr ...

34 ASTRONOMY • JUNE 2020 De Vaucouleurs’ classification scheme was more complex, forming a 3D “cosmic lemon” that accounted for ...

WWW.ASTRONOMY.COM 35 of understanding the size of the universe, let’s pretend that our spaceship could.) In our spaceship, let’s ...

SKY THIS MONTH Visible to the naked eye Visible with binoculars Visible with a telescope 36 ASTRONOMY • JUNE 2020 All seven majo ...

WWW.ASTRONOMY.COM 37 THE LAVA-FILLED GRIMALDI BASIN is eas- ily identified on the western limb of the Moon as the last patch of ...

Path^ of^ the Sun (ec lipti c) α β β γ α β α γ δ η ε α β α β δ β γ δ ζ ε α γ α δ ε η β α β α δ θ α η γ ζ ε β α α δ γ ε β α β γ σ ...

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 SUN. MON. TUES. WED. THURS. FRI. SAT. JUNE 2020 ...

AUR CAS AND TRI ARI CET CAS PEG SCL SGE EQU LAC AQR CAP PA MIC CA SGR AQL SER LY R CYG GEM CNC AUR ANT CRT H YA SEX LEO LM UM ...