COBS NEWS Archive

Aug. 01, 2011

SOHO Watches a Comet Fading Away

NASAs EPOXI spacecraft came within 450 miles of Comet Hartley 2, a small comet not even a mile in diameter, which takes about six and a half years to orbit the sun. Designated officially as 103P/Hartley 2, the comet thus became the fifth for which scientists have collected close-up images.

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Jul. 21, 2011

New Comet: P/2011 NO1

Cbet nr.2768, issued on 2011, July 19, announces the discovery of a new comet (discovery magnitude 19.5) by L. Elenin and I. Molotov on four 240-s unfiltered CCD exposures taken remotely with a 0.45-m f/2.8 astrograph at the ISON-NM observatory near Mayhill, NM, USA, on July 7.3 UT.

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Jul. 16, 2011

Comet Hartley 2 Leaves a Bumpy Trail

New findings from NEOWISE, the asteroid- and comet-hunting portion of NASAs Wide-field Infrared Survey Explorer mission, show that comet Hartley 2 leaves a pebbly trail as it laps the sun, dotted with grains as big as golf balls.

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Jul. 11, 2011

New Comet: C/2011 N2 (McNAUGHT)

IAUC nr.9220, issued on 2011, July 07, announces the discovery of a new comet (discovery magnitude 17.9) by R. H. McNaught with the 0.5-m Uppsala Schmidt telescope at Siding Spring, on images obtained on 2011, July 04.46. The new comet has been designated C/2011 N2 (McNAUGHT).

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Jul. 11, 2011

New Comet: P/2011 N1

IAUC nr.9219, issued on 2011, July 07, announces that an apparently asteroidal object (discovery magnitude 19.9) reported by Ignacio de la Cueva, Ibiza, Spain (from exposures taken by J. L. Ortiz, P. Santos-Sanz, N. Morales, and himself with a 0.40-m f/3.7 reflector at San Pedro de Atacama, Chile) was found to show cometary appearance after initial posting on the Minor Planet Center NEOCP webpage. The new comet has been designated P/2011 N1

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Jul. 06, 2011

Bright Sungrazing Comet on July 05, 2011

A new bright comet diving into the Sun is visible right now in C3 and C2 images taken by SOHO spacecraft.

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Jun. 27, 2011

New Comet: C/2011 M1 (LINEAR)

IAUC nr.9218, issued on 2011, June 25, announces the discovery of a new comet (discovery magnitude 18.6) by the LINEAR survey with a 1.0-m f/2.15 reflector + CCD, on images obtained on 2011, June 22.4. The new comet has been designated C/2011 M1 (LINEAR)

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Jun. 21, 2011

Scientists Analyzs Nucleus of Comet Hartley 2

Nearly one year ago, a repurposed NASA spacecraft flew by the comet Hartley 2. As a result, a multitude of high-resolution images were gathered over 50 days that allow scientists to understand the nature of the comets surface and its hidden interior.

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Jun. 17, 2011

Science Paper Details NASA Epoxi Flyby of Hyper Comet

Comet Hartley 2 hyperactive state, as studied by NASAs EPOXI mission, is detailed in a new paper published in this weeks issue of the journal Science.

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Jun. 10, 2011

New Comet: C/2011 L4 (PANSTARRS)

IAUC nr.9215, issued on 2011, June 08, announces the discovery of a new comet (discovery magnitude 19.4) on four CCD images taken with the 1.8-m Pan-STARRS 1 telescope at Haleakala, on images obtained on 2011, June 6.4. The new comet has been designated C/2011 L4 (PANSTARRS).

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