资讯

A Rare Planetary Alignment Will Form a 'Smiley Face' in the Sky — Here's How to Watch
Venus, Saturn and the moon will form a triple conjunction, appearing to look like a smiley face in a sky. Here's how and when ...
Hackaday6 年
Pi Zero Gives Amateur Astronomer Affordable Control Of Telescope
His instrument is a Celestron NexStar, a Schmidt-Cassegrain reflector ... As a neat side trick, the telescope can now be controlled with a Bluetooth gamepad. Astronomy and electronics go hand ...