An amateur astronomer looks down the eyepiece of his 21 centimetre diameter Newtonian reflector telescope on an equatorial mount. A hand-made instrument,this is a typical amateur telescope. The constellation of Orion (The Hunter) is visible in the night sky,with the three stars that make up Orion's Belt just above the telescope | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Scagell, Robin |
Bildgröße: | 3569 px × 5011 px |
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Eigentums-Rechte: | nicht erforderlich |
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