The Astronomical Almanac for the Year 2021 - and its companion The Astronomical Almanac Online : data for astronomy, space sciences, geodesy, surveying, navigation and other applications
- Författare
- (Issued by the Nautical Almanac Office United States Naval Observatory by direction of the Secretary of the Navy and under the authority of Congress, issued by Her Majesty's Nautical Almanac Office on behalf of The United Kingdom Hydrographic Office.)
- Genre
- Almanackor, Tabeller, Seriella publikationer
- Språk
- Engelska
| Förlag | År | Ort | Om boken | ISBN |
|---|---|---|---|---|
| U.S. Government Publishing Office, UK Hydrographic Office | 2020 | USA, Washington, DC, Taunton, UK | 1 volym (x, 92, 92, 26, 22, 88, 54, 26, 88, 20, 20, 38, 20, 18 sidor) illustrationer, tabeller 26 cm | 978-0-7077-4615-9 |
| U.S. Government Publishing Office | 2019 | USA, Washington, DC | 1 volym (x, 98, 92, 26, 22, 88, 52, 28, 92, 20, 20, 38, 20, 18 sidor) illustrationer, tabeller 27 cm | 978-0-7077-4600-5 |