Newest observations
-
Kontiolahti, Reflected sunbeams
II
23.9.2021 at 08.33 -
Juva, Glory on air
III
23.9.2021 at 05.15 -
Nurmijärvi, A fireball at night, brigter than the venus
III
22.9.2021 at 23.26 -
Rautalampi, Jupiter
III
22.9.2021 at 20.55 -
Kokemäki, Light pillars
II
22.9.2021 at 19.30 -
Parainen, Jurmo, One halo form
III
22.9.2021 at 14.19 -
Pori, Cloudbow visible from the ground
III
22.9.2021 at 14.05 -
Kuusamo, Rukatunturi, One halo form
I
22.9.2021 at 13.59 -
Kuusamo, Rukatunturi, Corona
III
22.9.2021 at 13.13 -
Kangasala, One halo form
I
22.9.2021 at 11.20 -
Ikaalinen, Sisättö, Several halo forms
II
22.9.2021 at 10.48 -
Ikaalinen, Sisättö, Fogbow
II
22.9.2021 at 09.45
Contact information
Visibility II / V
Kari Laihia, Veikko Mäkelä, Toni Veikkolainen, Rauno Päivinen, Christos Oscar Kambiselis, Porin Karhunvartijat
(21601) 1998 XO89 (1998 XO89,2000 AK195) The Trojan asteroid of Jupiter was photographed on the first night of the September 2021 troops. The L4 Athenian group of asteroids were discovered by the LINEAR Socorro exploration program, (704 Lincoln Laboratory ETS, New Mexico) on December 15, 1998. The size of the asteroid is 54.90km and the rotational speed is 12.65h / r. Estimated spectral class dark C. When photographed, the asteroid was at a distance of 5,096au and the closest on December 6, 2021 to 4,108au.
1Picture. first image in the series1 L120s measured, 2021-09-04UT 00: 01: 15UT 2459461.50086JDUT 04h58m15.91s + 29d09'31.3 "18.166mag Std Dev 92359 SNR10.832 FWHM3.445", JPL Horizon 00: 01: 15UT 04h58m15.92s + 29d09'30.7 "17.888 mag.
2Picture. last image in the series11 L120s measured, 2021-09-04UT 00: 22: 11UT 2459461.51540JDUT 04h58m16.32s + 29d09'31.5 "18.123mag Std Dev 111.195 SNR10.921 FWHM3.165", JPL Horizon 00: 22: 11UT 04h58m16.30s + 29d09'30.9 "17.888 mag.
3Picture sum view of L120s 1-11 stack of images, motion is displayed. Asteroid (39212) 2000 XC38 19.266mag, motion not shown. Asteroid (82483) 2001 OH34 19.825mag, motion visible dim. (34083) Feretova 19.557mag, movement is dim. Asteroid (44468) 1998 VH34 very scarce outdoors.
No other asteroids under 19.9mag are shown. TYC 1844-1278-1 v.12.08mag stars used to calibrate the brightness measurement.
Desktop version of the site
Show the mobile version
Site development by the Taivaanvahti team, E. Bruus and Sasken Finland Oy
© 2011- 2021 Ursa Astronomical Association. All rights reserved.
Privacy policy