Newly discovered Comet SWAN has
already developed an impressive tail. The comet came in from the outer Solar System and
has just passed inside the orbit of
the Earth. Officially designated C/2020 F8 (SWAN),
this outgassing interplanetary iceberg will pass its closest to the Earth on
May 13, and closest to the Sun on
May 27. The comet was first noticed in
late March by an astronomy enthusiast looking through images taken by NASA’s
Sun-orbiting SOHO spacecraft,
and is named for this spacecraft’s Solar Wind Anisotropies (SWAN)
camera. The featured image,
taken from the dark skies in Namibia in
mid-April, captured Comet SWAN‘s green-glowing coma and
unexpectedly long, detailed, and blue ion-tail.
Although the brightness of comets are notoriously hard to predict,
some models have Comet SWAN becoming bright enough to see with
the unaided eye during June.
Image & info via APOD
Image Credit & Copyright: Gerald Rhemann
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