Contact information

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

Ursa Astronomical Association

Sun - 27.12.2015 at 12.58 Espoo Observation number 46590

Visibility III / V

Janne Sievinen, Ursa (Helsinki)

Sunspot groups AR2473 (lower, 36 spots) and AR2472 (upper, 7 spots).


Additional information
  • Observation target
    • Sun
    • Keskitaso
  • Seeing
    • Average
Technical information

Single exposure 1/250 s IS0200 / Baader solar filter ASTF200 OD 5.0 / Canon EOS 650D / TAL-200K Klevtsov-Cassegrain

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