Greenwich 28-inch refractor
id:
greenwich-28-inch-refractor-278-10073135
title:
Greenwich 28-inch refractor
text:
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 no
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wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Greenwich_28-inch_refractor
date created:
date modified:
2023-08-24T00:45:50Z
main entity:
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image:
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fields total:
13
integrity:
14