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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

CTA 102 - 3.12.2016 at 18.00 Helsinki, Maunula Observation number 58638

Visibility II / V

Jorma Ryske, Etelä-Suomen kosmol. seura

The quasar CTA 102 normally has a magnitude of about 17 magnitudes. It has a distance of 8,000,000,000 light-years, and now it has become brighter to be seen visually with amateur tubes. Attached without filters is a black and white image of CTA 102, which is also marked with a few close stars with their brightness, as well as the galaxy NGC7305. The brightness of the quasar is now estimated at 12.6 magnitude.

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Additional information
  • Observation target
    • Deep space object
  • Designation
    • CTA 102
    • Heikosti näkyvä
  • Constellation
    • Pegasus
  • Brightness in magnitudes
    • 12.6
  • Field of view
  • 30 arc minutes
  • Weather
    • -6C
  • Darkness
    • Mediocre
  • Galaxies
    • Active galaxy info

      The active galaxy OJ 287 in Cancer. This active galaxy includes the biggest known black hole. Image Arto Oksanen.

Technical information

SW 200mm / F4, Atik314L +, MPCC, no filters, CEM60. Exposures 14x60s from 18:00 EET. North at the top, east at the left.

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