26P/Grigg-Skjellerup

26P/Grigg-Skjellerup
2013 Sep. 06.81 UT: m1=[15.0, NEGATIVE... 50.8-cm L (307x)... Sandor Szabo (Hungary) [Comet is not seen, fainter than 15.0 mag]
2013 Aug. 27.38 UT: m1=14.9 CCD, Dia.=1.2′... 0.11-m f/5.0 refractor + CCD... A. Novichonok & T.Prystavski (iTelescope observatory, Q62 (remotely Siding Spring, Australia))
2013 Aug. 11.12 UT: m1=13.5, Dia.=1.8′, DC=2... 30.5-cm L (115x)... Todd Augustyniak (Coral Woods Conservation Area, Marengo, Illinois, USA) [Comet 18 deg rees altitude, faint, diffuse, only visible with averted vision]
2013 Aug. 04.13 UT: m1=[13.5... 40.6-cm L (141x)... Todd Augustyniak (Wildcat Mountain State Park, Ontario, Wisconsin, USA) [Comet not visible visually... positioned 13.5 deg rees above horizon]
2013 Aug. 03.38 UT: m1=14.4: CCD, Dia.=&1.4′... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory Q62. Remotely Siding Spring, Australia)
2013 July 24.36 UT: m1=13.2: CCD, Dia.=&2.5′... 0.11m f/5.0 refractor + CCD... A. Novichonok & T.Prystavski (iTelescope observatory Q62. Remotely Siding Spring, Australia)
2013 July 08.42 UT: m1=13.3, Dia.=0.9’, DC=1... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, averted vision, no tail, low alt (17°), zodiacal light interference]
2013 July 08.36 UT: m1=12.4: CCD, Dia.=&3.3′... 0.11m f/5.0 refractor + CCD... A. Novichonok & T.Prystavski (iTelescope observatory Q62. Remotely Siding Spring, Australia)
2013 July 06.41 UT: m1=13.5, Dia.=0.9’, DC=1/2... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, no tail, averted vision, altitude 20°. Windy conditions, zodiacal light interference, observed from 1240m alt.]
2013 July 03.37 UT: m1=13.9, Dia.=0.4’, DC=0/1... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very small and difficult to observe due to interference from Zodiacal light, observed over 25 minute period, motion checked, averted vision in good seeing. Also used magnification of x167 which showed the coma only fleetingly, x83 seemed to show the coma better in periods of good seeing]