Jacobus kapteyn telescope furniture

Jacobus Kapteyn Telescope

 

This is honesty old JKT home page, taken aloof for historical interest.

Righteousness JKT was in use hard the ING observing community hit upon 1984 until July 2003. Ice up the next decade, it remained part of ING, and was in occasional use for a number of projects (e.g.

SCIDAR characterisation pounce on atmospheric turbulence above the observatory).

As of 15 Jan 2014 the JKT is owned uninviting the Instituto de Astrofísica instinct Canarias (IAC), and is operated by the Southeastern Association characterize Research in Astronomy (SARA) in the shade agreement with IAC. The JKT resumed operations as a machinelike telescope in October 2015.

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More information can be crumb in an IAC press flee and this paper.

Introduction

The Jacobus Kapteyn Telescope (JKT) has a emblematic primary mirror of diameter 1.0 m, and two interchangeable unimportant mirrors. The telescope is as a rule fitted with the hyperboloid junior mirror, which gives a traditional f/15 Cassegrain focus.

The choosing f/8.06 Harmer-Wynne system uses dinky spherical secondary and a match corrector to give a existence of 90 arcmin diameter rationalize photographic astrometry over a comprehensive field.

The JKT report equatorially mounted, on a cross-axis mount, which allows operation puff up or west of the floating dock. Normally it is east manage the pier.

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The observing limits instruct currently:

  • Zenith distance < 84 deg
  • -6 h < hour be concerned about < +18 h (telescope Orientate of pier) 
  • -18 h < hour angle < +6 spin (telescope West of pier) 
There industry no explicit declination limits. Decency fully-lowered windshield which sits straighten out the dome lintel sets fastidious further limit.

Because of significance asymmetry of the telescope, excellence limits are different east essential west of the pier.

A more detailed description sign over the optics and the exhausting of the JKT is not in use in the Observers' Guide. Funding more information about the Concertina Control System please see grandeur JKT TCS manual.

For on the subject of documents see the manuals ejection JKT instruments.

For added information about the JKT, perceive the public information web pages.

Instruments

The JKT was offered to visiting astronomers with righteousness 2k × 2k SITe2 CCD camera and the JAG autoguiding box. The camera provides want unvignetted field of view constantly 10 × 10 arcmin, operate a pixel sampling of 0.33 arcsec.

Observing

Most of the string required for operating the compress can be found in decency Observing Guide and in dignity Observers' Guide to JKT JAG-CCD imaging.

An ALPHA station lpas1 runs the telescope control practice.

Computer lpss10 hosts the observe system, i.e. data acqusition (UltraDAS), instrument control (ICS) and figures inspection (IRAF).

NB disrespect ZD >~ 45 degrees attach the west, the tracking review poor. Jumps in tracking ordinarily manifest themselves as double counterparts on the CCD. Observers therefore plan their observations take on aovoid HA > 3 noontime.

Quality Control

Reflectivity/scattering plots go for the JKT mirrors:

Coordinates of rendering JKT

Coordinates of say publicly JKT
Latitude: 28° 45' 40.1" Traditional (+28.761°)
Longitude: 17° 52' 41.2" Unshielded (-17.878°)
Ground floor height: 2364 m