2019-04-01_Astronomy

PATHOF THE PLANETS The planets in the sky These illustrations show the size, phase, and orientation of each planet and the two b ...

This map unfolds the entire night sky from sunset (at right) until sunrise (at left). Arrows and colored dots show motions and l ...

Comet look-alike NGC 1931 30" April 12, 4:20 A.M. EDT Jupiter Io Europa Ganymede S W Ganymede returns to view 42 ASTRONOMY • APR ...

AQUARIUS q Neptune Mercury Venus r s s s N E 1° 1° BOÖTES Arcturus p d o Path of Pallas April 1 6 11 16 21 26 May 1 N E Pall ...

44 ASTRONOMY • APRIL 2019 The mountain named after Marilyn Lovell made her one of a handful of women immortalized on the Moon. b ...

WWW.ASTRONOMY.COM 45 T he Apollo program trans- formed our understanding of the Moon. It helped unlock our satellite’s complex h ...

46 ASTRONOMY • APRIL 2019 story (Sheehan) and French scholar Francoise Launay have argued that it was meant to be a celestial po ...

WWW.ASTRONOMY.COM 47 Crater, named for Jesuit astronomer Angelo Secchi. Lovell’s voice came across clearly on the radio. “The mo ...

48 ASTRONOMY • APRIL 2019 To artists inspired by what they see in nature, volcanic sunsets are the holy grail of light and color ...

Did optical effects from volcanic aerosols affect the way this Neo-Impressionist artist approached his canvas? by Stephen James ...

50 ASTRONOMY • APRIL 2019 Atmospheric Chemistry and Physics, Christos Zerefos of the Academy of Athens, Greece, tells how he and ...

WWW.ASTRONOMY.COM 51 it only f lirted with his still- evolving Pointillist style. Still, one can see in the sky the smoggy effec ...

Mexico United States Gulf of Mexico Atlantic Ocean 52 ASTRONOMY • APRIL 2019 A flecked Hawaiian sky On March 28, 1982, El Chichó ...

WWW.ASTRONOMY.COM 53 aureoles described by Chevreul, though in opposite order — namely an enormous blue sphere of light surround ...

_ ` CANES VENATICI NGC 4656 NGC 4631 NGC 4395 NGC 4214 NGC 4244 NGC 5033 M 63 M 51 M (^94) NGC 4490 NGC 4449 M 106 5 ° NGC 5005 ...

WWW.ASTRONOMY.COM 55 3 NGC 4214 is an irregular galaxy glowing at magnitude 9.6 and measuring 8' by 6.6'. Through an 8-inch tele ...

56 ASTRONOMY • APRIL 2019 No matter your photography skills, a few simple tricks can help you capture the best images possible. ...

WWW.ASTRONOMY.COM 57 most part) checks off many of the boxes for other criteria you would want to consider in selecting a place ...

58 ASTRONOMY • APRIL 2019 I have to admit, it is a bit disconcerting the first time you drive over the surface of a frozen lake, ...

WWW.ASTRONOMY.COM 59 the lens to hold a heat pack or two tight against the body, and it provided enough heat to keep the ice cry ...