Light curve of interstellar asteroid `Oumuamua

This plot shows how the interstellar asteroid `Oumuamua varied in brightness during three days in October 2017. The large range of brightness — about a factor of ten (2.5 magnitudes) — is due to the very elongated shape of this unique object, which rotates every 7.3 hours. The different coloured dots represent measurements through different filters, covering the visible and near-infrared part of the spectrum. The dotted line shows the light curve expected if `Oumuamua were an ellipsoid with a 1:10 aspect ratio, the deviations from this line are probably due to irregularities in the object's shape or surface albedo.

Autorska prava:

ESO/K. Meech et al.

O slici

Id:eso1737f
Tip:Grafikon
Datum objavljivanja:20. novembar 2017. 17:00
Povezana saopštenja:eso1737
Veličina:3982 x 868 px

O objektu

Naziv:1I/2017 U1 (‘Oumuamua)
Tip:Milky Way : Interplanetary Body : Asteroid
Kategorija:Illustrations

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