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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

1478 Vihuri - 24.9.2017 at 22.05 - 24.9.2017 at 22.24 Orimattila, Artjärvi, Tähtikallio Observation number 67429

Visibility II / V

1478 Vihuri (1938 CF, 1934 CG). Filmed on a DS weekend Sunday. Finland 20 in 1478 was discovered by Yrjö Väisälä on February 6, 1938 in Turku. The asteroid is named after Antti Taavetti (Anton David) of Wihuri (formerly Jansson). The Wihuri Foundation has provided extensive financial support to support science and the arts. Several star hobby associations have also received funding from them. The size of the inner edge of the main zone asteroid is 9.5km and the rotation period is 19.5h / r .1Picture. Snapshot of all images, motion is no different.
2Picture. First image, measured 19: 05: 04UT 21h26m59.42s -11d36'22.0 "16.594mag, Horizon 19: 05UT 21h26m59.48s -11d36'21.7" 16: 84mag.
3Picture. Last picture, measured 19: 24: 00UT 21h26m59.11s -11d36'22.1 "16.684mag., Horizon 19: 24UT 21h26m59.14s -11d36'22.0" 16.84mag.
TYC 5781-284-1 v.12.34mag stars used for brightness calibration. There were no more asteroids found in the image. 465 Alekto 14.8mag was left out in about 20s and 29426 1997 CH28 18.1mag hit another star 17mag .net / cgi-bin / checkmp.cgi whether there are other asteroids in the image area.


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • 1478 Vihuri
    • Heikosti näkyvä
  • Seeing
    • Good
Technical information

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

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