C/2012 S1 (ISON)

  • ephemeris
  • Display observing conditions.

    Individual and sum spectra

  • table
  • figure 1 -- figure 1 (PS)
  • figure 2 -- figure 2 (PS)
  • figure 3 -- figure 3 (PS)
  • figure 4 -- figure 4 (PS)
  • figure 5 -- figure 5 (PS)
  • figure 6 -- figure 6 (PS)
  • figure 7 -- figure 7 (PS)
  • figure 8 -- figure 8 (PS)
  • figure 9 -- figure 9 (PS)
  • figure 10 -- figure 10 (PS)
  • figure 11 -- figure 11 (PS)
  • figure 12 -- figure 12 (PS)
  • figure 13 -- figure 13 (PS)
  • figure 14 -- figure 14 (PS)
  • figure 15 -- figure 15 (PS)

    Offset positions

  • table
  • figure 1 -- figure 1 (PS)

    Notes

  • Sungrazing comet.
  • In September and October, observations are hampered by heavy painting works on the mirror.
  • Outburst observed on 13 November 2013 (CBET No. 3711).
  • From 20 November to 7 December 2013, no OH maser inversion model available (rdot > 60 km/s).
  • Approach to Earth at 0.43 AU on 27 December 2013.
  • Close to North pole (dec = 87°) on 8 January 2014.