Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

Variable star TCP J05074264+2447555 - 6.11.2017 at 23.40 Helsinki, Maunula Observation number 68253

Visibility IV / V

Jorma Ryske, Etelä-Suomen kosmol. seura

Encouraged by the brightness observations of Arto’s gravitational lens TCP J05074264 + 2447555, here is my first photometry observation, especially when I noticed that the brightness value obtained from this Photodiff is not terribly wrong. 15x10 second images averaged mag 12.50, filter not official Johnson V.



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Additional information
  • Observation target
    • Variable star
  • Designation
    • TCP J05074264+2447555
    • Näyttävä
  • Constellation
    • Taurus
  • Brightness in magnitudes
    • 12.50
Technical information

SW 200mm / F4, QSI690, MPCC, filter Astrodon L, CEM60. FOV 54'x 43 '. Bin1x1, 0.95 "/ px. Exposures 15x10s from November 6, 2017 11:40 PM EET, JD 2458064.32817. North at the top, east at the left.

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