https://www.pictortelescope.com/observe
![](https://blog.yucas.net/wp-content/uploads/2019/07/image.png)
PICTOR consists of a 1.5-meter parabolic antenna that allows anyone to make continuous and spectral (i.e. hydrogen line) drift-scan observations of the radio sky in the 1300~1700 MHz regime for free.
![](https://blog.yucas.net/wp-content/uploads/2019/07/plot300719-1024x478.png)
![](https://blog.yucas.net/wp-content/uploads/2019/07/plot31072019-1024x478.png)
https://stellarium-web.org/
National Observatory of Athens