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Model of WSO-UV telescope during "Space Week" in Madrid, May 2011

The Spektr-UV, also known as World Space Observatory-Ultraviolet (WSO-UV), is a proposed space telescope intended for work in the 110 nm to 320 nm wavelength range. Launch had been planned for 2007 or earlier,[1] but the current launch date estimate is 2023.[2]

The observatory[edit]

The main instrument of the observatory is 1.7-metre Ritchey–Chrétien telescope. The telescope will be equipped by the following instruments:

  • HIRDES (High-Resolution Double Echelle Spectrograph): R~55000 spectroscopy of point sources in the 102-320 nm range (Germany)
  • LSS: Long-slit low-resolution (R~2500) spectroscopy in the 102-320 nm range
  • ISSIS (Imaging and Slitless Spectroscopy Instrument for Surveys) being developed to carry out UV and optical diffraction limited imaging of astronomical objects. The ISSIS incorporates three channels:High Sensitivity Far-UV Channel: 120-200 nm; Channel for Surveys (FUV): 120-600 nm, optimized for 120-270 nm; Channel for Surveys (UVO): 120-600 nm, optimized for 270-600 nm. (Spain)


In October 2012, tests of antennas of space telescope were completed.[3]

Participating nations[edit]

This international project is led by Russia (Roskosmos). At present the international cooperation includes three basic participants: Russia ( will provide the telescope, spacecraft, launch facilities, ground segment); Spain (ISSIS, ground segment); Germany (spectrographs). Ukraine and Kazakhstan also participate the project.

See also[edit]


  1. ^ "World Space Observatory for the Ultra-Violet (WSO/UV)". Universität Tübingen. Retrieved 2010-03-15.
  2. ^ "World Space Observatory - Ultraviolet". WSO-UV (Spain). 2015. Retrieved 2016-10-25.
  3. ^ Завершены испытания антенн космического телескопа "Спектр-УФ"

External links[edit]