2008            
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  The epoch T=J2008.5 is the date 2008 July  2.125  (JD 2454649.625)
  it corresponds to the Besselian epoch B2008.50146

                                         h  m
 Beginning of the spring March     20,  5 48.3 UT
    >>            summer June      20, 23 59.3 UT
    >>            autumn September 22, 15 44.5 UT
    >>            winter December  21, 12 03.7 UT
                                         h
 The Earth at perihelion January    2, 23.9 UT
 The Earth at aphelion   July       4,  7.7 UT