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Padma Yanamandra-Fisher

Padma Yanamandra-Fisher

2009: 67P/CG (Credit: R. Ligustri, Italy)

2002: 67P/CG (Credit: R. LIgustri, Italy)

2014 Feb 23: C/SidingSpring in I band (in the red circles) ; comparison standards stars (in green circles). (Credit: T. Bohlsen, Armidale, AU).

2014 Feb 24: C/SidingSpring in I band: tail just visible. (Credit: P. Lake, iTelescope.net, AU)

2014 Feb 22: The comet is visible from the southern hemisphere - image taken from Siding Spring Observatory, Australia. The quantity Afrho is a measure of the dust production or activity of the comet. (Courtesy: R. Ligustri, Italy),

2014 Feb 20: As seen from the southern hemisphere , Siding Spring Observatory (credit: P.Lake, iTelescope.net)

2014 Feb 20: Two Great Comet Discoverers: Rob MacNaught (left) and Terry Lovejoy (right) at Siding Spring Observatory. (Courtesy: iTelescope.net, AU)

Besides comets, Rob McNaught discovered asteroids, from Siding Spring Obs; here he shows an asteroid he discoverd the day before in June 2009. (Courtesy: Ron Knight, Australia).

Another image of Uppsala Telescope (Siding Spring Observatory) and discoverer, Rob MacNaught. (Courtesy: iTelescope.net).

Rob McNaught, discoverer of C/2013 A1 (Siding Spring), at the Uppsala Telescope, at Siding Spring observatory. Currently the telescope is closed and the discoverer retired. (Courtesy iTelescope.net)

14 January 2014: Finder Chart. Credit. V. Agnihotri, India

14 January 2014. Credit: Nick Howes and Faulkes Telescope.

14 January 2014. Credit: Simon White from Kendal, UK.

10 December 2013. Credit: Efrain Morales, Puerto Rico, USA.

24 November 2013. Credit: Rob Kaufman, Victoria, Australia

A short animation of C/ISON's journey to perihelion, based on contributions of amateur astronomers from around the world, in support of CIOC_ISON. 2013 Dec 13

The tracking plan for the Solar Dynamics Observatory on November 28th as ISON passes through perihelion. (Credit: NASA/SDO).

2013 Nov 21: C/ISON looks healthy, a possible disconnection event midway down the tail. Image Credit: Juanajo Gonzales(Oviedo, Spain)

2013 Nov 17: C/ISON observed despite moonlight, cirrus cloud and obstacles... photo details: 13x30s, Canon EOS 650D + 50mm f/2.8 on EQ-5 mount. (Credit: J. Cherny, Prague,Czech Rep.

2013 Nov 18: First image of C/ISON by Shy Watcher's Association of North Bengal (SWAN), India, taken in the morning twilight. Credit: D. Sarkar.

2013 Nov 18: C/ISON looks healthy and has long dust/ion tails. Image by The Virtual Telescope, Rome, Italy (credit: G. Masi).

2013 Nov 18: C/ISON sports long beautiful tails, with the possible Disonnection Event (DE) in the longer tail. Image by John Chumack, Ohio, USA.

2013 Nov 17: C/ISON with a lot of tail structure. Imager: L. Elenin.

2013 Nov 15: A composite comparing the appearance of C/ISON from March and November 2013. Image by: Iko Margalef, Spain.

2013 Nov 15: C/ISON sporting multiple tails. Imager: 4" Pentax Refractor at F4, SBIG ST8 with clear filter. 3 minute exposure binx3 Observers Tony Angel & Caisey Harlingten Images Copyright to SON@OSC