Jump to top page


Reports from Geisei Observatory <June 29, 2009>


P/2009 L2 (Yang-Gao)

    The following is the observation of P/2009 L2 (Yang-Gao). It was observed during precious few clear moments in the rainy season.
    As Geisei's 70cm telescope has slow optics (f/7), the photographic image of a comet is almost stellar. As this comet was discovered by a small camera, it may appear as a diffused nebula if photographed with a fast lens. At the next chance, I will try with the 21cm f/3 Epsilon. Since the comet passed perihelion on May 21, it has been becoming fainter gradually. 

    PK09L020   2009 06 25.63819 18 20 32.11 -06 36 48.0          15.3 N      372
    PK09L020   2009 06 25.65903 18 20 32.40 -06 35 58.3                      372
    PK09L020   2009 06 25.66563 18 20 32.45 -06 35 42.5                      372
    PK09L020   2009 06 26.52917 18 20 51.09 -06 01 55.8          15.3 N      372
    PK09L020   2009 06 26.53750 18 20 51.22 -06 01 36.4                      372
    PK09L020   2009 06 28.52153 18 21 30.31 -04 48 08.6          15.5 N      372
    PK09L020   2009 06 28.52813 18 21 30.37 -04 47 55.4                      372
    PK09L020   2009 06 28.54549 18 21 30.58 -04 47 17.9          15.4 N      372
    PK09L020   2009 06 28.55243 18 21 30.66 -04 47 03.9                      372
Copyright (C) 2009 Tsutomu Seki.