New SESTO SENSO 2 Robotic Focusing Motor
SESTO SENSO 2 – The highly accurate, advanced, vibration free, robotic focusing motor for your telescope! Connect it to the USB port of your EAGLE or Windows® computer to electronically…
Focusers
First Primalucelab ESATTO 2″ Microfocuser Sold in Australia
We recently received a shipment of ESATTO 2″ and ESATTO 3″ focusers from Primalucelab. These had been pre-ordered by customers who wanted to get in early and receive an ESATTO…
Australian dealership for Rainbow Astro
Sidereal Trading is excited to announce that we are now the Australian dealer for Rainbow Astro. Rainbow Astro is a division of Rainbow Robotics, a professional mechatronics technology company that…
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What is a moon, and can it be an asteroid?
Inspired by a video of an eclipse of Phobos, Bill wondered about the definitions of moons, planets and asteroids. Why are potato shapes important, and how did Phobos stop being one and start being another?
Getting an image of a comet using the Benro Polaris
Bill used the Benro Polaris tracking mount to get images of comet Tsuchinshan-ATLAS. This post tells the story of the expedition. He also reviews the Polaris.
What’s the time on the Moon?
How do we tell the time on the Moon? This will be an important issue once humans establish a long-term presence there. We list a few of the problems with time, and how they’ll probably agree on a single Coordinated Lunar Time.