With Ro­set­ta fly­ing tra­jec­to­ries bey­ond 100 km from Co­met 67P/Chu­ry­u­mov–Ge­ra­si­men­ko in April 2015, the ext­ent of the in­cre­asing ac­ti­vi­ty could be mo­ni­to­red. In this image, ta­ken on 16 April from a di­stance of 124 km, the ac­ti­vi­ty can most cle­ar­ly be seen ri­sing from the small co­met lobe, alt­hough a faint ne­bu­lo­si­ty sur­rounds much of the nu­cleus.

The 1 km-dia­me­ter Hat­me­hit de­pres­si­on can just be made out towards the top of the image on the co­met’s small lobe, while the ridge se­pa­ra­ting the Seth and Anu­bis re­gi­ons is ac­cen­tua­ted by shadows on the lar­ge lobe. The small lobe is also cas­ting its rug­ged out­line as a shadow onto the lar­ge lobe.

The image sca­le is 10.6 m/pi­xel and the image me­a­su­res 10.8 km across.

This image is one of 12 sel­ec­ted for our “Year at a co­met” gal­lery and has not been pre­vious­ly pu­blished on the ESA Por­tal.

Cre­dit: ESA/Ro­set­ta/Nav­cam – CC BY-SA IGO 3.0

Eu­ro­pean Space Agen­cy (@eu­ro­pean­space­agen­cy06.08.2015 15:52