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- Groombridge_Transit_Circle abstract "Groombridge Transit Circle was a meridian transit circle made by Edward Troughton for Stephen Groombridge in 1806, which Groombridge used to compile data for the star catalogue, Catalogue of Circumpolar Stars. The advantage of a transit circle over a mural circle (which can measure polar distances) is that it allows measuring right ascension and declination at the same time. It had an aperture of 3.5 inches and a 5 foot focal length, mounted inside two 4 foot circles on stone piers. Groombridge used the instrument to determine the positions of over 4000 circumpolar stars.It was eventually bought by James South, and it remained at his observatory at Kensington until 1870.".
- Groombridge_Transit_Circle thumbnail Groombridge_transit_circle.jpg?width=300.
- Groombridge_Transit_Circle wikiPageExternalLink v=onepage&q=Groombridge%20Transit%20Circle&f=false.
- Groombridge_Transit_Circle wikiPageID "28468451".
- Groombridge_Transit_Circle wikiPageLength "1942".
- Groombridge_Transit_Circle wikiPageOutDegree "10".
- Groombridge_Transit_Circle wikiPageRevisionID "380210726".
- Groombridge_Transit_Circle wikiPageWikiLink Category:Astronomical_instruments.
- Groombridge_Transit_Circle wikiPageWikiLink Circumpolar_star.
- Groombridge_Transit_Circle wikiPageWikiLink Circumpolar_stars.
- Groombridge_Transit_Circle wikiPageWikiLink Edward_Troughton.
- Groombridge_Transit_Circle wikiPageWikiLink Groombridge_1830.
- Groombridge_Transit_Circle wikiPageWikiLink James_South.
- Groombridge_Transit_Circle wikiPageWikiLink Meridian_circle.
- Groombridge_Transit_Circle wikiPageWikiLink Mural_circle.
- Groombridge_Transit_Circle wikiPageWikiLink Star_catalogue.
- Groombridge_Transit_Circle wikiPageWikiLink Stephen_Groombridge.
- Groombridge_Transit_Circle wikiPageWikiLink Transit_circle.
- Groombridge_Transit_Circle wikiPageWikiLink File:Groombridge_transit_circle.jpg.
- Groombridge_Transit_Circle wikiPageWikiLinkText "Groombridge Transit Circle".
- Groombridge_Transit_Circle hasPhotoCollection Groombridge_Transit_Circle.
- Groombridge_Transit_Circle wikiPageUsesTemplate Template:Reflist.
- Groombridge_Transit_Circle subject Category:Astronomical_instruments.
- Groombridge_Transit_Circle hypernym Circle.
- Groombridge_Transit_Circle type Instrument.
- Groombridge_Transit_Circle type Place.
- Groombridge_Transit_Circle type Instrument.
- Groombridge_Transit_Circle comment "Groombridge Transit Circle was a meridian transit circle made by Edward Troughton for Stephen Groombridge in 1806, which Groombridge used to compile data for the star catalogue, Catalogue of Circumpolar Stars. The advantage of a transit circle over a mural circle (which can measure polar distances) is that it allows measuring right ascension and declination at the same time. It had an aperture of 3.5 inches and a 5 foot focal length, mounted inside two 4 foot circles on stone piers.".
- Groombridge_Transit_Circle label "Groombridge Transit Circle".
- Groombridge_Transit_Circle sameAs m.0crjkx_.
- Groombridge_Transit_Circle sameAs Q5610272.
- Groombridge_Transit_Circle sameAs Q5610272.
- Groombridge_Transit_Circle wasDerivedFrom Groombridge_Transit_Circle?oldid=380210726.
- Groombridge_Transit_Circle depiction Groombridge_transit_circle.jpg.
- Groombridge_Transit_Circle isPrimaryTopicOf Groombridge_Transit_Circle.