Astronomical space coordinate and time conversion. Calculate Julian day, local sidereal time and ecliptic obliquity with great precision.

A modified version of rDUINOScope that works with Adafruit 3.5" 320X480 TFT SPI mode, Updated to the latest firmware version V_2.3.1.

equatorial mount stepper motor controller with GPS high precision star-, moon- and sun-tracking, Skysafari server for GOTO and Webinterface for stepper motor settings on an ESP32 microcontroller

rDUINOScope - Arduino based telescope control system (GOTO) fork - ILI9488 version

Motorized equatorial camera mount.

Control your telescope wirelessly with ESP8266

Stepper motor driver for German equatorial mounts

Greater Equatorial Student's Association

Telescope GOTO/Tracking system with steppers motors for equatorial mounts

Source code and operating manual for a system that uses the Earth’s gravity to point telescopes at stars. It works on PushTo or GoTo equatorial mounts - uses an Android mobile phone App and a couple of stick-on sensors - cost is about AU$100 - assembly time is about half an hour using scissors and a screwdriver.

Vertical structure of 7-day period inertial-gravity waves in the equatorial Pacific

my private linux iOptronmount commander