Stony Ridge Observatory is an astronomical observatory built by and for amateur astronomers in the mountains of Los Angeles County, California, in 1957. When installed, its 760 mm (30 in) Newtonian-Cassegrain likely ranked as 8th largest of all telescopes in California, and one of the largest amateur telescopes in the United States. The telescope is designed so that one of four Newtonian foci, or a Cassegrain focus, can be used. Asteroids 10168 Stony Ridge, 144633 Georgecarroll and 327030 Alanmaclure, were discovered at the observatory, and other scientific research (including an extensive lunar photography and mapping project in cooperation with Lockheed upon which the decision on the lunar lander touchdown site was based) has been conducted there. The observatory also has a 12-inch Casse
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| - Observatorio Stony Ridge (eo)
- Observatoire de Stony Ridge (fr)
- Osservatorio di Stony Ridge (it)
- Stony Ridge Observatory (en)
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| - La Observatorio Stony Ridge estas astronomia observatorio situanta en la areo tiel nomata Stony Ridge de la en la kantono Los-Anĝeleso, Kalifornio, Usono. Ĝi estas adminitrata de asocio de amatoraj astronomoj kaj ĝia MPC kodo estas 671. Malfermita en 1957, ĝi povis fieri havi la plej grandan teleskopon (de 76 cm) inter la amatoraj observatorioj de Kalifornio kaj verŝajne de Usono. (eo)
- L'observatoire de Stony Ridge est un observatoire astronomique américain situé dans la zone forestière homonyme de la forêt nationale d'Angeles, dans l'État de Californie, aux coordonnées 34° 18′ 04,57″ N, 117° 59′ 52,08″ O à une altitude de 1 730 m. Il est géré par une association d'astronomes amateurs. Son code MPC est 671 Stony Ridge. Ouvert en 1957, il a pu se vanter d'être le plus grand télescope (de 76 cm) parmi les observatoires amateurs de Californie et vraisemblablement des États-Unis. Le Centre des planètes mineures le crédite de la découverte de deux astéroïdes en 2004. (fr)
- Stony Ridge Observatory is an astronomical observatory built by and for amateur astronomers in the mountains of Los Angeles County, California, in 1957. When installed, its 760 mm (30 in) Newtonian-Cassegrain likely ranked as 8th largest of all telescopes in California, and one of the largest amateur telescopes in the United States. The telescope is designed so that one of four Newtonian foci, or a Cassegrain focus, can be used. Asteroids 10168 Stony Ridge, 144633 Georgecarroll and 327030 Alanmaclure, were discovered at the observatory, and other scientific research (including an extensive lunar photography and mapping project in cooperation with Lockheed upon which the decision on the lunar lander touchdown site was based) has been conducted there. The observatory also has a 12-inch Casse (en)
- L'osservatorio di Stony Ridge (in inglese: Stony Ridge Observatory) è un osservatorio astronomico statunitense situato nell'omonima zona della in California, alle coordinate 34°18′04.57″N 117°59′52.08″W / 34.301269°N 117.9978°W ad un'altitudine di 1.730 m s.l.m., gestito da un'organizzazione di astronomi amatoriali. Il suo codice MPC è 671Stony Ridge. Inaugurato nel 1957, poteva vantare il telescopio di maggior diametro, 76 cm, tra gli osservatori amatoriali della California e, presumibilmente, degli Stati Uniti. Gli è stato dedicato l'asteroide 10168 Stony Ridge. (it)
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| - Newtonian-Cassegrain reflector optical (en)
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| - Stony Ridge Observatory, Inc. (en)
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| - La Observatorio Stony Ridge estas astronomia observatorio situanta en la areo tiel nomata Stony Ridge de la en la kantono Los-Anĝeleso, Kalifornio, Usono. Ĝi estas adminitrata de asocio de amatoraj astronomoj kaj ĝia MPC kodo estas 671. Malfermita en 1957, ĝi povis fieri havi la plej grandan teleskopon (de 76 cm) inter la amatoraj observatorioj de Kalifornio kaj verŝajne de Usono. Ĝia avangarda instrumentaro permesis, ke ĝi asociiĝis al kunlaboraj projektoj kun profesiaj observatorioj. Komence de la 1960-aj jaroj, ĝi kontribuis al la kartografio de la luna surfaco, kiu utilis por elekti la alterigan lokon de la misioj Apollo. (eo)
- Stony Ridge Observatory is an astronomical observatory built by and for amateur astronomers in the mountains of Los Angeles County, California, in 1957. When installed, its 760 mm (30 in) Newtonian-Cassegrain likely ranked as 8th largest of all telescopes in California, and one of the largest amateur telescopes in the United States. The telescope is designed so that one of four Newtonian foci, or a Cassegrain focus, can be used. Asteroids 10168 Stony Ridge, 144633 Georgecarroll and 327030 Alanmaclure, were discovered at the observatory, and other scientific research (including an extensive lunar photography and mapping project in cooperation with Lockheed upon which the decision on the lunar lander touchdown site was based) has been conducted there. The observatory also has a 12-inch Cassegrain telescope and a number of accessory items, including CCD cameras and computer equipment. Facilities include an administration building with a small galley and bunkroom, the dome containing the 30-inch telescope, and a vault-style outhouse. The facility has Edison electric power and a landline telephone connection, but water must be carried in. Stony Ridge is located on a remote, restricted-access site north of Mt. Wilson, near Charlton Flat in the Angeles National Forest. In September 2009, Stony Ridge was at risk of being lost to a wildfire but escaped with minimal fire damage to one side of the outhouse building, although nearby ground cover was burned away, and the foliage of surrounding Coulter pines was destroyed. Recent restoration projects, completed in mid-2017, included: Re-installation of the original, George Carroll-designed right ascension and declination drive systems; installation of a Software Bisque-based "go to" system which will point the telescope at a computer-selected celestial object too faint to be seen with the naked eye or the telelescope's finder scopes; stripping and re-aluminization of the primary and secondary mirrors, which were significantly deteriorated by age, as well as smoke and heat from the infamous Station Fire, which burned more than 200 square miles of the Angeles National Forest surrounding the observatory in 2009. (en)
- L'observatoire de Stony Ridge est un observatoire astronomique américain situé dans la zone forestière homonyme de la forêt nationale d'Angeles, dans l'État de Californie, aux coordonnées 34° 18′ 04,57″ N, 117° 59′ 52,08″ O à une altitude de 1 730 m. Il est géré par une association d'astronomes amateurs. Son code MPC est 671 Stony Ridge. Ouvert en 1957, il a pu se vanter d'être le plus grand télescope (de 76 cm) parmi les observatoires amateurs de Californie et vraisemblablement des États-Unis. Son instrumentation de pointe lui a permis d'être associé à des projets de coopération avec des observateurs professionnels. Au début des années 1960, il a contribué à la cartographie de la surface de la Lune qui servit à sélectionner les sites des capsules Apollo. Au cours de l'été 2009, la structure a été menacée par le vaste incendie qui a frappé la forêt où elle se trouvait, mais finalement les dégâts furent réduits. Le Centre des planètes mineures le crédite de la découverte de deux astéroïdes en 2004. L'astéroïde (10168) Stony Ridge a été nommé d'après la structure. (fr)
- L'osservatorio di Stony Ridge (in inglese: Stony Ridge Observatory) è un osservatorio astronomico statunitense situato nell'omonima zona della in California, alle coordinate 34°18′04.57″N 117°59′52.08″W / 34.301269°N 117.9978°W ad un'altitudine di 1.730 m s.l.m., gestito da un'organizzazione di astronomi amatoriali. Il suo codice MPC è 671Stony Ridge. Inaugurato nel 1957, poteva vantare il telescopio di maggior diametro, 76 cm, tra gli osservatori amatoriali della California e, presumibilmente, degli Stati Uniti. La strumentazione d'avanguardia di cui è dotato gli permette il coinvolgimento in progetti in cooperazione con osservatori professionali. All'inizio degli anni sessanta del XX secolo ha contribuito alla realizzazione della mappatura della superficie lunare che servì per scegliere i siti di allunaggio delle missioni Apollo. Nell'estate 2009 la struttura venne minacciata dal vasto incendio che colpì la foresta dove è ubicato ma riportò infine solo danni minimi. Il Minor Planet Center lo accredita per la scoperta di due asteroidi effettuate entrambe nel 2004. Gli è stato dedicato l'asteroide 10168 Stony Ridge. (it)
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