VLT quick views of spacecraft targets

The first picture (ESO Press Photo eso9835a) is a composite of seven 2-minute exposures of Comet Wild 2, obtained through a red filter with the VLT Test Camera in the early morning of July 25, 1998. The observations were made during rather windy conditions, about 15 m/sec, whereby substantial, variable pressure was exerted on the upper part of the telescope structure. Still, the guiding worked very well and the resulting image shows the fine structure of the comet's "coma" of dust that has been released from the two-kilometre "dirty snowball" nucleus. In this combined image, the stars in the field are seen seven times each, reflecting the motion of the comet in the sky.

This is a combination of seven 2-min R (red) exposures with the VLT Test Camera on July 25, 1998. The individual frames were flat-fielded, shifted in order to centre the comet and then combined. The field shown measures 1.3 x 1.3 arcmin. North is up; East is to the left.

Credit:

ESO

Over de afbeelding

Id:eso9835a
Type:Observatie
Publicatiedatum:31 juli 1998
Gerelateerde berichten:eso9835
Grootte:2868 x 2708 px

Over het object

Naam:Comet Wild 2
Type:Solar System : Interplanetary Body : Comet
Categorie:Solar System

Afbeeldingstypen

Grote JPEG
1,5 MB

Achtergrond

1024x768
276,9 KB
1280x1024
411,2 KB
1600x1200
549,8 KB
1920x1200
601,0 KB
2048x1536
805,8 KB

Kleuren & filters

BandTelescoop
Optisch
R
Very Large Telescope