Contact information

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

Ursa Astronomical Association

1382 Gerti - 10.4.2021 at 22.10 - 10.4.2021 at 22.31 Orimattila, Artjärvi, Tähtikallio Observation number 97922

Visibility III / V


1382 Gerti (1925 BB, 1929 LH, 1933 UL1,1936 QB1) The asteroid at the inner edge of the main zone was photographed on the second night of the April 2021 work. The asteroid was discovered by the German astronomer Karl Wilhelm Reinmuth at the Heidelberg (024-Heidelberg-Konigstuhl) Observatory on January 21, 1925. Karl Reinmuth has found a total of 395 asteroids as well as comets 30P / Reinmuth and 44P / Reinmuth. The asteroid is named after Gertrud Höhne (or Hoehne), secretary of the Astronomisches Rechen Institute in Berlin (Institute for Astronomical Computation). The size of the asteroid is 11.93km and the rotation speed is 3.082h / r. There is a 3D model https://3d-asteroids.space/asteroids/1382-Gerti . As described, the asteroid was 1,613au at a distance and closest on February 10, 2021 to 1,261u. The first image of the shot was still taken during the enjoyable twilight.

1Picture. First image measured, 2021-04-10T 19: 09: 55UT 2459315.29855JDUT 08h48m09.87s + 18d29'33.5 "16.055mag Std Dev 581.580 SNR54.845 FWHM5.452", JPL Horizon 19: 09: 55UT 08h48m09.83s + 18d29 ' 33.3 "16.013 mag.

2Picture. Last image measured, 2021-04-10T 19: 30: 49UT 2459315.31306JDUT 08h48m10.38s + 18d29'30.7 "16.252mag Std Dev 523.583 SNR68.479 FWHM3.706", JPL Horizon 19: 30: 49T 08h48m10.33s + 18d29 ' 30.4 "16.013 mag.

3Picture. Summary image of a stack, movement is visible. Asteroid 10358 Kirchhoff 18.426mag, motion shown. Asteroid 10261 Nikdollezhal '18.867mag, motion not shown. Asteroid (38412) 1999 RX210 18.533mag, motion shown. Asteroid (82807) 2001 QK32 20.266mag, motion not shown. No other detectable asteroids below 20.4mag. TYC 1385-484-1 v.12.41mag stars used to calibrate brightness measurement.


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • 1382 Gerti
    • Keskitaso
  • Seeing
    • Excellent
Technical information

Alluna RC16, C415 / 3320, Moravian G4-16000EC MkII, filter L, bin3 11 x 120s

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