The huge professional telescope in The Bulgarian National Astronomical Observatory (Rozhen Observatory) from the inside. 200 cm Ritchey-Chretien telescope, supplied with Coude focus. Tilting.

Remaining Time -0:00
Progress: NaN%
Playback Rate
1.00x
For Editorial Use Only
仅限编辑用途:若非有特别许可或担保,图像将禁止用于一切商业广告以及转销售类用途,123RF将不能够在其中提供申请任何特别许可的服务
information icon98158492
video icon16.08s