The nPAE Theia 90 Collimating Star Diagonal is a 1/10th wave star diagonal that is a combination star diagonal and filter changer, with a micro meter tip/tilt adjustable mirror. The diagonal uses a 46mm minor axis mirror with 1/10th wave finish and each unit comes with an individual Zygo report […]
The nPAE Theia Astro Imaging Filter Changer offers a magnetic alternative to changing your astro imaging filters. Simply load your imaging filters in advance into the quick change filter holders and you can rapidly swap from one to the other. Using high power magnets to hold the imaging filters in […]
In Astronomy Technology Today, Issue 6, I reviewed the Explore Scientific 2″ 14mm 100° and 2″ 5.5mm 100° eyepieces. In that review I mentioned the Explore Scientific 2″ 9mm 100 eyepiece that I have used and loved for many years. This time I am reviewing the Explore Scientific 2″ 9mm […]
For the ATT Volume 14 Issue 9, I wrote an article describing my experiences under light-polluted skies using Astronomik’s 1.25” UHC, UHC-E, and CLS filters along with the absence of a filter. The upshot of that article was that such filters prove their value by revealing many deep sky wonders […]
Over the years, I’ve shared the eyepiece with family, friends, and myriad others. Telescopes so often capture the attention of onlookers, don’t they? Regardless of attention garnered, interested onlookers often don’t consider getting a telescope because they find themselves within the pale confines of light-polluted skies. While light pollution interferes […]
It was turning into a beautiful evening as the summer sun was beginning to set. The sound of children’s laughter competed for the chirping of crickets as they took advantage of the warm breeze and late summer sunset. To the southeast, mighty Jupiter and noble Saturn were beginning to become […]
Stellarium planetarium software is an open-source application which renders 3D photo-realistic skies in real time displaying stars, constellations, planets, nebulae and more. Stellarium is licensed under the terms of the GNU General Public License version 2 and is available for Linux, Windows, and macOS. Stellarium provides a real-time view of […]
A new afocal adapter for eyepieces has been released from OVNI Night Vision, which specializes in manufacturing night vision eyepieces intended for amateur astronomy. The afocal adapter is compatible with OVNI Night Vision’s OVNI-M monocular and the and OVNI-B night vision binoviewer which was recently released in November, both utilizing […]
The CBAM is a Counterweight Bar Accessory Mount for GEM Mounts from Scopestuff that offers an aluminum block that clamps on the counterweight bar on GEM mounts that have 18mm or 20mm diameter bars, to provide mounting points for a variety of accessories. The biggest benefit of mounting accessories on […]
The Scopestuff 1.25″ Twist Lock Adapter for 2″ SCT Threads is available for C5, C6 and other small SCTs, Meade ETX Models and Orion/SW MAKs. The Scopestuff 1.25″ Twist Lock Adapter locks with a twist, holding 1.25″ eyepieces and accessories securely as well as very well centered and aligned. The […]
The iOptron GEM28 and GEM28EC are new compact next-generation German equatorial mounts that, like their predecessors, are designed with portability in mind. Weighing in at only 10 lbs. these mounts can support up to a 28lb payload offering an incredible 2.8 mount weight to payload ratio. iOptron achieved this functionality […]
The Planetary Astronomy guide is a comprehensive book about observing, imaging, and studying planets. It has been written by seven authors, all being skillful amateur observers in their respective domains: Christian Viladrich, Marc Delcroix, Jean-Jacques Poupeau, Frédéric Burgeot, Giuseppe Monachino, and Jean-Pierre Prost. This is a translation and an update […]