The Jacobus Kapteyn Telescope or JKT is a 1-metre optical telescope named for the Dutch astronomer Jacobus Kapteyn (1851-1922) of the Isaac Newton Group of Telescopes at the Roque de los Muchachos Observatory on La Palma in the Canary Islands, Spain.

Jacobus Kapteyn Telescope

The Jacobus Kapteyn Telescope in 2011 against a background of clouds as the sun rises
Named after	Jacobus Kapteyn
Part of	Isaac Newton Group of Telescopes Roque de los Muchachos Observatory
Location(s)	La Palma, Atlantic Ocean
Coordinates	28°45′41″N 17°52′41″W
Organization	Instituto de Astrofísica de Canarias Isaac Newton Group of Telescopes
Altitude	2,360 m (7,740 ft)
Built	–1983 (–1983)
First light	March 1984
Telescope style	optical telescope parabolic reflector reflecting telescope
Diameter	1 m (3 ft 3 in)
Mounting	equatorial mount
Website	www.ing.iac.es/PR/jkt_info
Location of Jacobus Kapteyn Telescope
Related media on Wikimedia Commons
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Funded jointly by the Netherlands and the United Kingdom with planning throughout the 1970s, construction of the JKT was completed in 1983 with the first photographic plate taken in March 1984. It can be used with two different focal points and different instruments, although by 1998 this was refined to one CCD imaging instrument. The telescope weighs nearly 40 metric tons in total.[1]

Being superseded by more recent and larger telescopes, it was taken out of service as a common-user facility in August 2003.

Since 2014, the telescope is owned by the Instituto de Astrofísica de Canarias (IAC) and operated by the Southeastern Association for Research in Astronomy (SARA)[1] which has retrofitted JKT as a remotely operated observatory (under the internal designation SARA-RM), with the first new observations in this regime in April 2016.

Timeline

Summary:[2]

• 1984-2003 ING
• 2003-2014 occasional project use
• January 2014, IAC ownership
• 2015, resumed operations as robotic telescope for SARA

Views

See also

• List of largest optical telescopes in the 20th century

References

External links

• The Isaac Newton Group of Telescopes (ING) JKT Page
• The Southeastern Association for Research in Astronomy (SARA)
• Instituto de Astrofísica de Canarias (IAC)

На других языках

[de] Jacobus-Kapteyn-Teleskop