2019-06-01+Sky+and+Telescope

GL AC IER M AP :^ G RE GG DI ND ER MA N^ / S& T,^ SO UR CE NA TIO NA L^ P AR KS SE RV ICE ;^ U .S. AN D^ C AN AD A^ M AP :^ ...

Park in the Dark 60 JUNE 2019 • SKY & TELESCOPE ers of the park’s astronomy program. Rather, parks have been established to ...

skyandtelescope.com • JUNE 2019 61 advanced scientifi c projects. Wagner says educational oppor- tunities will be available to s ...

Park in the Dark 62 JUNE 2019 • SKY & TELESCOPE Volunteers Make It Happen The amazing programs within Glacier don’t come wit ...

skyandtelescope.com • JUNE 2019 63 and know how to use it, make noise as you travel down the trail, and preferably hike in group ...

IMAGING TIPS by Ron Brecher 64 JUNE 2019 • SKY & TELESCOPE W e all marvel at gorgeous pictures of galaxies, nebu- lae, and s ...

skyandtelescope.com • JUNE 2019 65 PERFECT GUIDING Perhaps the most critical step in deep- sky astrophotography is ensuring well ...

Imaging Tips 66 JUNE 2019 • SKY & TELESCOPE bearings in the focuser, or by replacing it with an after-market model that can ...

skyandtelescope.com • JUNE 2019 67 causes a slight oscillation of the fi eld. This often is represented in the technical speci- ...

Imaging Tips 68 JUNE 2019 • SKY & TELESCOPE ttA MATTER OF BALANCE Ensuring your equipment is balanced proper- ly on your mou ...

skyandtelescope.com/australia2019 S&T’s 2020 solar eclipse cruise offers 2 minutes, 7 seconds of totality off the coast of A ...

S&T Test Report by Dennis di Cicco AL L^ P HO TO S^ B Y^ T HE AU TH OR Meade’s DSI-IV Camera Could this be the best astronom ...

exposure imaging. It’s worth noting that the supplied USB 3.0 cable is only 5 feet long. I was able to keep my laptop close enou ...

72 JUNE 2019 • SKY & TELESCOPE S&T Test Report bytes for a 30-second clip made with a small region of interest. The manu ...

Stauer... Afford the Extraordinary.® O n May 18, 1980, the once-slumbering Mount St. Helens erupted in the Pacific Northwest. It ...

ASTRONOMER’S WORKBENCH by Jerry Oltion A 3D-Printed Binoscope No workshop? No problem. WHEN ROBERT ASUMENDI looked through Frank ...

WI RE FR AM E^ A ND SO LID FO CU SE R:^ RO BE RT AS UM EN DI skyandtelescope.com • JUNE 2019 75 Most of the upper end is 3D-pr ...

u DEEP-SKY RISING Jeff Dai Several observers watch as Orion rises over the Pamir Mountains in the Xinjiang province of western C ...

skyandtelescope.com • JUNE 2019 77 BLUE ROSE Wanda Conde The Rosette Nebula, NGC 2237, takes on an unusual color palette of blue ...

ACCESSORIES Place Your essential source for astronomical products Market BOOKS 78 JUNE 2019 • SKY & TELESCOPE ADVERTISE IN S ...