Contact information

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

Ursa Astronomical Association

(84491) 2002 TR280 - 28.9.2019 at 22.14 - 28.9.2019 at 22.36 Orimattila, Artjärvi, Tähtikallio Observation number 87268

Visibility I / V


(84491) 2002 TR280 (2002 TR280, 1995 UV7) The asteroid on the inner edge of the main zone was photographed on the second night of the Stormbonger incident and extra work. When we photographed the 29P / Schwassmann-Wachmann comet, this came into the picture. The asteroid of the Vesta family was discovered by the LINEAR Socorro exploration program on October 10, 2002. The total estimate is 1.4km. When photographing, the distance to the asteroid was 1,257au. , the nearest asteroid was 1,255au on 03.10.2019. When we shoot 2 asteroids in the Vesta family, it is rare, although there are a total of 15,252 asteroids in the large family! 1Picture. first stack of 1-2 images measured, 2019-09-28 19: 17: 38UT 2458755.30391JDUT 00h46m28.0s + 15d52'57.7 "18.4mag Std Dev 121.612, JPL Horizon 19: 17: 38UT 00h46m28.47s + 15d52'57.3" 18.76 mag.
2Image last stack of 9-10 images measured, 19: 34: 18UT 2458755.31548JDUT 00h46m27.74s + 15d52'53.4 "18.3mag Std Dev 150.834, JPL Horizon 19: 34: 18UT 00h46m27.79s + 15d52'53.3" 18.76mag.
3Picture Snapshot of the stack, motion is displayed. Pictured asteroid (124004) 2001 FG81 18.74mag. , the movement is displayed. Asteroids (200388) 2000 QD224 19.45mag. , the movement is displayed. Asteroid (195672) 2002 OY17 19.22mag., Motion shown. No other asteroids below 20.0 mag are shown. TYC 1188-1632-1 v.10.92mag stars used to calibrate brightness measurement.


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • (84491) 2002 TR280
    • Erittäin heikosti näkyvä
  • Seeing
    • Good
Technical information

Alluna RC16, C415 / 3320, SBIG 1001E, filter L, 10 x 120s

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