This is a comprehensive guide to buying, testing, and using a refracting telescope. It is written mainly for amateur astronomers who already own or are intending to purchase a refracting telescope, but will prove useful for non-astronomical observers.
Ik heb een vraag over het boek: ‘Choosing and Using a Refracting Telescope - English, Neil’.
Vul het onderstaande formulier in.
We zullen zo spoedig mogelijk antwoorden.
