Cerca nel blog...

sabato 25 ottobre 2014

A 7 km dalla cometa!

This four-image NAVCAM montage comprises images taken on 20 October from a distance of 9.4 km from the centre of comet 67P/C-G – about 7.4 km from the surface. In this orientation the smaller lobe of the comet is on the left, with the larger lobe on the right.

Four image NAVCAM montage comprising images taken on 20 October 2014. Credits: ESA/Rosetta/NAVCAM
Four image NAVCAM montage comprising images taken on 20 October 2014. Credits: ESA/Rosetta/NAVCAM


Assuming the 7.4 km distance, the image scale is about 63cm/pixel, so each 1024 x 1024 pixel frame is about 645 m across (although if we assume the furthest point away is an additional ~1 km further from the centre, the image scale is about 72 cm/pixel).
The four 1024 x 1024 pixel images making up the montage are provided below:

ESA_Rosetta_NAVCAM_141020_D

ESA_Rosetta_NAVCAM_141020_A 
 ESA_Rosetta_NAVCAM_141020_B 
 ESA_Rosetta_NAVCAM_141020_C 

fonte

Nessun commento:

Posta un commento

Visualizzazioni totali