Датотека:1911 Britannica - Astronomy - Cross.png
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1911_Britannica_-_Astronomy_-_Cross.png (202 × 153 piksela, veličina datoteke: 10 kB, MIME tip: image/png)
Opis izmene
| Opis |
English: Practical Astronomy. In this plane are a pair of cross threads or spider lines which, as the observer looks into the telescope, are seen as AB and CD. Illustration from 1911 Encyclopædia Britannica, article Astronomy. |
| Datum | |
| Izvor |
Encyclopædia Britannica Eleventh Edition, Vol. 2, Page 807  |
| Autor | Encyclopædia Britannica, 1911 |
Licenciranje
|
This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
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| Datum/vreme | Minijatura | Dimenzije | Korisnik | Komentar | |
|---|---|---|---|---|---|
| trenutna | 02:57, 18. novembar 2013. | | 202 × 153 (10 kB) | Clarice Reis | User created page with UploadWizard |
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