Skywarden

Contact information

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

Ursa Astronomical Association

1019 Strackea - 22.4.2022 at 22.28 - 22.4.2022 at 22.39 Orimattila, Artjärvi, Tähtikallio Observation number 106624

Visibility III / V

Kari Laihia, Veikko Mäkelä, Toni Veikkolainen, Rauno Päivinen, Christos Oscar Kambiselis, Juha Blad, Porin Karhunvartijat

1019 Strackea (A924 ES, 1924 QN) The asteroid at the inner edge of the main zone was photographed on the first night of the April 2022 troops. The Hungaria family of asteroids was discovered by the German astronomer Karl Wilhelm Reinmuth at the Heidelberg Observatory on March 3, 1924. The asteroid was named after the German astronomer Gustav Stracke (1887-1943). Source Wikipedia https://en.frwiki.wiki/wiki/Gustav_Stracke .The size of the asteroid is 7.16km and the rotation speed is 4.044h / r. Spectrum class spec_T => S stone. When photographed, the asteroid was at a distance of 1.0477au and the nearest March 26, 2022 0.982au. We photographed this asteroid while still enjoying the twilight.

1Picture. first image in the series1 L60s measured, 2022-04-22T 19: 27: 41UT 2459692.30114JDUT 13h13m14.97s + 38d12'28.9 "15.116mag Std Dev 1000.917 SNR50.356 FWHM3.132", JPL Horizon 19: 27: 41UT 13h13m15.00s + 38d12'27.9 "15.086mag.

2Picture. last image in the series11 L60s measured, 2022-04-22T 19: 38: 35UT 2459692.30871JDUT 13h13m14.58s + 38d12'31.7 "15.046mag Std Dev 1154.393 SNR70.925 FWHM2.836", JPL Horizon 19: 38: 35UT 13h13m14.61s + 38d12'30.5 "15.086mag.

3Picture sum view of L60s 1-11 image stack, motion is displayed. No other asteroids less than 21.4 magma are shown.

TYC 3022-1663-1 v.11.85mag stars used to calibrate brightness measurement.


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • 1019 Strackea
  • Seeing
    • Average
Technical information

Alluna RC16, C415 / 3320, Moravian G4-16000EC MkII, filter L, bin2 11 x 60s

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