Asteroid (4179) Toutatis passes the Earth

These photos were obtained nearly simultaneously in the morning of September 29, at 02:30 hrs UT, when the asteroid was passing through the constellation of Triangulum Australe ("The Southern Triangle"). The offset between the two trails corresponds to the difference of the lines-of-sight from the two telescopes towards the object. Two 1-min images were taken almost simultaneously with the FORS-1 instrument on Kueyen, the second 8.2m VLT Unit Telescope on Paranal, and on the WFI camera installed on the ESO/MPI 2.2m telescope at La Silla. The WFI image was obtained though a R broad-band filter; on the VLT, a narrow band [O III] interference filter was used to attenuate the light of the bright asteroid. The images were then scaled and processed in order to compensate for the different characteristics of the two instruments (scale, orientation, distortion, sensitivity). The VLT image is displayed in red, the WFI image in green. As the stars are common to both images, they appear yellowish.

Oikeudet:

ESO

Kuvasta

Tunnistus:eso0430c
Tyyppi:Havainto
Julkaisupäivä:29. syyskuuta 2004
Vastaavat julkaisut:eso0430
Koko:2309 x 2451 px

Kohteesta

Nimi:4179 Toutatis
Tyyppi:Solar System : Interplanetary Body : Asteroid
Kategoria:Solar System

Kuvaformaatit

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Kokoruudun JPEG
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Värit ja suotimet

KaistaTeleskooppi
Optinen
Oiii
Very Large Telescope
FORS1
Optinen
R
MPG/ESO 2.2-metre telescope
WFI