Contact information

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

Ursa Astronomical Association

12008 Kandrup - 20.6.2021 at 01.39 - 20.6.2021 at 02.00 Orimattila, Artjärvi, Tähtikallio Observation number 99259

Visibility II / V


12008 Kandrup (1996 TY9) The asteroid Mars-Crosser was photographed on a Saturday weekend in June 2021, from a clear summer sky. The audible asteroid was discovered by American astronomer Timothy Bruce Spahr on October 11, 1996 in the Catalina Sky Survey search program at the Steward Observatory's Catalina Station (693) near Tucson, Arizona. Dr. Spahr is the director of the UN-designated International Asteroid Warning Network (IAWN). Timothy Spahr has found 58 asteroids and comets 171P / Spahr and P / 1998 U4, source Wikipedia
https://en.wikipedia.org/wiki/Timothy_B._Spahr . The asteroid is named after Henry Emil Kandrup (1955-2003), an American astrophysicist. Professor Kandrup at the University of Florida in Gainesville specializes in the fields of galaxy and plasma physics. His parents had moved from Denmark to America. Source Wikipedia https://en.wikipedia.org/wiki/Henry_Kandrup . Overall rating 7.1km and rotation speed 32.9034h / r.
When photographed, the asteroid was 0.493au at a distance and 0.491au at its nearest June 16, 2021. Shooting took place against a clear summer sky, with an R filter with 8s of exposures in stacks of 20 images and a small Interval during which other subjects were photographed. Measurement stacks were taken from 5 images in the series without calibration.
1Picture. first image stack of 1-5 images measured, 2021-06-19UT 22: 39: 32UT 2459385.44412JDUT 19h58m57.59s + 05d52'23.3 "13.559mag Std Dev 481.337 SNR12.23 FWHM8.134", JPL Horizon 22: 39: 32UT 19h58m57. 60s + 05d52'22.9 "13.612mag.
2Picture. last image 36-40 stack of images measured, 2021-06-19UT 22: 59: 12UT 2459385.45778JDUT 19h58m56.31s + 05d52'09.7 "13.400mag Std Dev 602.731 SNR8.427 FWHM5.740", JPL Horizon 22: 59: 12UT 19h58m56. 37s + 05d53'08.5 "13.612mag.
No other asteroids below 19.8mag. TYC 493-2970-1 v.11.95mag stars used to calibrate brightness measurement.


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • 12008 Kandrup
    • Heikosti näkyvä
  • Seeing
    • Mediocre
Technical information

Alluna RC16, C415 / 3320, Moravian G4-16000EC MkII, filter R, bin3 20x8s, 20x8s

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