TARGET_DESCRIPTION |
Target Description
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MOA-2009-BLG-266 is low-mass exoplanet detected by gravitational
microlensing parallax measurements by chance alignment with a
lensing star estimated to be 0.5 or 0.7 solar masses and located
about 3 kiloparsecs from Earth in the galactic disk at these
J2000 coordinates:
RA: 17:48:01.95
Dec: -35:00:19.48
The planet is estimated to be about 10 Earth masses and at a
distance of approximately 3 AU from its host. The microlensing
event is long, lasting several months; the Einstein ring has a
radius of about 4 AU.
MOA-2009-BLG-266 was first detected on 11 September 2009 by
Microlensing Observations in Astrophysics (MOA), a joint project
between New Zealand and Japan at Mount John Observatory. It is
also the first planetary microlensing event with extra-terrestrial
observations performed by EPOXI mission in October 2009 (data on
trailing arm of event).
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