Kata Kunci Pencarian:
- Observatorium Yerkes
- Teleskop optik
- Teleskop refraktor ganda Zeiss
- Observatorium Bosscha
- Teleskop
- Kegiatan seksual manusia
- Karel Albert Rudolf Bosscha
- Refraktori
- Periode refraktori (seks)
- Pengaturan distribusi cahaya
- Bamberg-Refraktor
- Transformers: War for Cybertron Trilogy
- List of largest optical refracting telescopes
- Wilhelm Foerster Observatory
- Hamburg Observatory
- Bamberg (disambiguation)
- Carl Bamberg
- Great refractor
- Refracting telescope
- Eugene Onegin
