Greenwich 28-inch refractor (Q98686834)

  • matcher place: Royal Borough of Greenwich (relation 51902), London (relation 65606), Greater London (relation 175342), Maritime Greenwich (relation 10764047)
  • view on Wikidata
  • Wikipedia: English
  • Wikimedia Commons
  • English Wikipedia categories: Great refractors, Optical telescopes, Royal Observatory, Greenwich
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Summary from English Wikipedia (enwiki)

The Greenwich 28-inch refractor is a telescope at the Royal Observatory, Greenwich, where it was first installed in 1893. It is a 28-inch ( 71 cm) aperture objective lens telescope, otherwise known as a refractor, and was made by the telescope maker Sir Howard Grubb. The achromatic lens was made Grubb from Chance Brothers glass. The mounting is older however and dates to the 1850s, having been designed by Royal Observatory director George Airy and the firm Ransomes and Simms. The telescope is noted for its spherical dome which extends beyond the tower, nicknamed the "onion" dome. Another name for this telescope is "The Great Equatorial" which it shares with the building, which housed an older but smaller telescope previously.

Wikidata location: 51.4777, -0.0012 view on OSM or edit on OSM

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optical telescope (Q35273) telescope:type=optical
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