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    Padma Yanamandra-Fisher
    Padma Yanamandra-Fisher
    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.

    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

    2013 Nov 13: Imager Martin Ratcliffe's mosiac of 2 images shows the great tail and its length.

    2013 Nov 14: C/ISON with a fine ion tail: image taken by The Virtual Teescope (G. Masi, Director).

    2013 Nov 13: First known image that captured the outburst activity in C/ISON: Other details:C/2012 S1 ISON 13/11/2013 at 05:30 UT FOV 116.5 x 77.7 arcmins SON@OSC (Searchlight Observatory Network at the Observatorio Sierra Contraviesa, Granada, Spain) 4" Pentax Refractor at F4, SBIG ST8 with clear filter. 3 minute exposure binx2 Observers Tony Angel & Caisey Harlingten

    2013 Nov: A montage showing the development of the coma and tail of C/ISON, all images taken under similar conditions by astroimager, R. Kaufman.

    C/ISON changing morphology over several days (Credit: Teerasak Thaluang, Thailand)

    2013 Nov 7: C/ISON in the morning sky taken by astroimager, Andrew Wall, Adelaide, Australia. Details of image: 4 x 140sec exp Canon 1100D ISO400 from Suburb of Adelaide, South Australia, comet was 10 degrees above local horizon.

    2013 Nov 7: A long tail (over a degree or 60-arc sec) observed in C/ISON by comet imager, Terry Lovejoy, Queensland, Au. Details on image.

    2013 Nov 1: C/ISON as seen from Bernezzo Observatory, Italy. (Imager: Andrea Mantero)

    2013 Nov 1: C/ISON and its beautiful tail captured in Van Buren, AK. (Imager: Mike Holloway).

    2013 Oct 31: C/ISON with its long tail as seen in Cadca, Poland (Imager: Marian Urbanik)

    2013 Oct 31: Visible spectrum of C/ISON,showing NH2, C2 detections, Spectra taken by Christian Buil, France.

    2013 Nov 2: C/ISON from southern latitude of 30.8 S (Imager: R. Kaufman, White Cliffs, NSW, AU)

    2013 Nov2: C/ISON in two filters: V (top black) and R(bottom black) acquired with iTelescope,Net, New Mexico (Imager: R. Ligustri, Italy)

    2013 Nov 3: C/ISON from Vinaros, Spain (Imager: Iko Margalef)

    2013 Nov 2: C/ISON observed by Slooh Space Camera (Canary Island) (Posted by Christina Feliciano-Rivera on behalf of Slooh Research Group).

    2013 Nov 4: Montage of Eight NASA Assets (spacecraft) that have imaged C/ISON. (Courtesy: Karl Battams of CIOC Team; www.isoncampaign.com)

    2013 Nov 5: Montage of C/ISON over several days. Credit: Rob Kaufman, Australia.

    2013 Nov 4: ISON as observed from Greece. (Courtesy: A. Vollanakis)

    2013 Oct 31: Imager: Teerasak Thaluang. Details on image.

    2013 Oct 31: C/ISON from Southern Latitudes : details: 8" Celestron Ultima PEC SCT, F/6.3, Canon 400D, ISO 1600, single 90 sec exp.(Imager: Outbackmanyep Chris, Walcha, NSW, Australia).

    2013 Oct 25: Four comets (S/ISON,, Encke, Lovejoy, LINEAR (X)). imaged by Joh Chumack, Ohio.

    2013 Oct 18: C/ISON and MARS (credit: J. Chumack)

    2013 Oct 22: C/ISON in R band (Credit: T. Scarmato)

    2013 Oct 22: A montage of C/ISON: one year later Credit: The Virtual Telescope (G. Masi)

    2013 Oct 22: C/ISON in R band (left) and Vband (right). Credit: P. Backman