Evropská jižní observatoř

Kategorie: Sluneční soustava, Zpět na celou fotogalerii.

Popis (v anglickém jazyce):

This photo shows the faint image of a new transneptunian
object, discovered with the ESO 3.5-metre New Technology Telescope in October 1994. It is here seen in a negative reproduction (dark stars on white sky) of the CCD frame on which it was first noticed.

It was detected because of its extremely slow motion, only 3 arcsec/hour. Six accurate positions were measured and allowed to determine an approximate distance of about 42 AU, that is 6300 million kilometres from the Sun. This is far outside the orbit of the outermost, large planet, Neptune (4500 million kilometres); hence the classification as a "transneptunian" object.

It was given the designation "1994 TG2" by the Minor Planet Center of the International Astronomical Union. The
observed magnitude is about 24, i.e., it is about 16 million times fainter than the faintest objects that can be perceived with the unaided eye. Its diameter is probably 100 - 200 kilometres.

Odkaz na další informace na www.eso.org (stránka v AJ)