skyandtelescope.com • FEBRUARY 2020 57
Ideally Extraordinary,
Extraordinarily Ideal
Ideally Extraordinary,
Extraordinarily Ideal
DFM Engineering, Inc.
1035 Delaware Ave., Unit D
Longmont, CO USA 80501
Phone 303-678-8143
Fax 303-772-9411
[email protected]
http://www.dfmengineering.com✦ Design ✦ Manufacturing ✦ Installation ✦ Retrofitting ✦✦ Optical Servicing ✦ Upgrades / Repairs ✦ Observatory Design Consulting ✦photo: NASA, ESA, the Hubble Heritage Team (STScI/AURA), A. Nota (ESA/STScI), and the Westerlund 2 Science Team40
Years40
YearsThe 2020 Sky & Telescope
Observing Calendar combines
gorgeous astrophotography and
special monthly sky scenes that
illustrate the positions of the
Moon and bright planets. It also
highlights important sky events
each month, including eclipses,
meteor showers, conjunctions,
and occultations.
Sky & Telescope’s
shopatsky.com
ObservingCalendar