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Contact information

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

Ursa Astronomical Association

23254 Chikatoshi - 25.9.2017 at 00.08 - 25.9.2017 at 00.18 Orimattila, Artjärvi, Tähtikallio Observation number 98771

Visibility III / V


23254 Chikatoshi (2000 YZ15,1977 UB1,1986 TJ13,1999 RP245) An asteroid in the central zone of the main zone was photographed on the Sunday of the September 2017 DS weekend. When photographing Finland 100 asteroids 2020 Husband this came according to the picture. The asteroid was discovered by LINEAR Socorro's exploration program, Anderson Mesa Station (code 699) on December 22, 2000. The name of the asteroid is derived from the Japanese planet astronomer Professor Chikatoshi
Honda. HONDA Chikatoshi of Aizu University specializes in planetary geology and has participated in the Hayabusa Asteroid Research Project and the Kaguya Moon Research Project. Source Aizu University

https://www.u-aizu.ac.jp/research/faculty/detail?cd=90075&lng=en . The size of the asteroid is 9.04km and the rotation speed is 7.03219h / r. There is also a 3-D model

https://3d-asteroids.space/asteroids/23254-Chikatoshi . When photographed, the asteroid was 1.562au at a distance and 1.55au as of 16 September 2017.
1Picture. first picture measured, 2017-09-24T 21: 09: 30UT 2458021.38159JDUT 23h19m31.16s -11d22'30.7 "16.884mag Std Dev 157.419 SNR15.397 FWHM5.205", JPL Horizon 21: 09: 30UT 23h19m31.07s -11d22 ' 31.2 "17.479 mag.
2Picture. last image measured, 2017-09-24UT 21: 17: 56UT 2458021.38745JDUT 23h19m30.76s -11d22'32.2 "17.241mag Std Dev 107.906 SNR10.731 FWHM6.276", JPL Horizon 21: 17: 56UUT 23h19m30.78s -11d22 ' 32.2 "17.479 mag.
3Picture. Summary image of the stack, motion not visible. Asteroid 2020 Husband 16.0mag, motion shown. No other asteroids below 20.5mag. BD-11 6045 v.10.78mag stars used to calibrate the brightness measurement.


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • 23254 Chikatoshi
    • Keskitaso
  • Seeing
    • Good
Technical information

Alluna RC16, C415 / 3320, SBIG 1001E, filter L, 5 x 120 s

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