The Astronomical Calendar is back! It was popular as a printed book from 1974 to 2016, used by thousands of sky-lovers in more than 100 countries. It then continued as an electronic book. For 2023 onward it has reappeared, in both forms, printed and electronic. Printed book: $22 (it was $29.95 for the previous printed … Continue reading "Astronomical Calendar 2025"
