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The discovery of three planetary companions around HR 8799 (Marois et al.2008) marked a significant epoch in direct imaging of extrasolar planets. Giventhe importance of this system, we re-analyzed H band images of HR 8799 obtainedwith the Subaru 36-elements adaptive optics (AO) in July 2002. The low-order AOimaging combined with the classical PSF-subtraction methods even revealed theextrasolar planet, HR 8799b. Our observations in 2002 confirmed that it hasbeen orbiting HR 8799 in a counter-clockwise direction. The flux of HR 8799bwas consistent with those in the later epochs within the uncertainty of 0.25mag, further supporting the planetary mass estimate by Marois et al. (2008).

H band Image of a Planetary Companion around HR 8799 in 2002