COBS NEWS Archive

Jul. 31, 2012

New Comet: P/2012 O3 (McNAUGHT)

Cbet nr. 3193, issued on 2012, July 26, announces the discovery of a new comet (discovery magnitude 18.0) by R. H. McNaught on CCD images obtained with the 0.5-m Uppsala Schmidt telescope at Siding Spring on July 23.7. The new comet has been designated P/2012 O3 (McNAUGHT).

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Jul. 25, 2012

New Comet: P/2012 O2 (MCNAUGHT)

Cbet nr. 3189, issued on 2012, July 23, announces the discovery of a new comet (discovery magnitude 18.3) by R. H. McNaught on CCD images obtained with the 0.5-m Uppsala Schmidt telescope at Siding Spring on July 20.7. The new comet has been designated P/2012 O2 (MCNAUGHT).

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Jul. 14, 2012

Comet 96P/Machholz Visible in SOHO Images

Every ~5.3 years, comet 96P/Machholz makes a close and personal swing around the Sun. At a distance of 0.12 AU, comet Machholz comes within 11 million miles (18 million km). That is 8 times closer to the Sun than the Earth and even 2.5 times closer than the innermost planet Mercury.

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Jun. 06, 2012

Recovery of comet P/1994 X1

Cbet Circular No. 3132, issued on 2012, May 31, announces the recovery of comet P/1994 X1 = 2012 K7 (McNaught-Russell) by our team; this comet was discovered on 1994, December 12 with the UK Schmidt Telescope at Siding Spring observatory and it was last observed on 1995, April 17.

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Jun. 03, 2012

Discovery of cometary appearance of 2011 KP36

2011 KP36 was originally discovered as an asteroid by T. H. Bressi of Spacewatch survey on 2011, May 21. Its orbit was unusual (actually a=38.6 AU, e=0.87, i=19°), belonging to the outer Solar System. Its T3 parameter (respect to Jupiter) is 2.64, so it entered our T3 internal list of targets.

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May. 30, 2012

New Comet: C/2012 K5 (LINEAR)

Cbet nr. 3127, issued on 2012, May 28, announces the discovery of a new comet (discovery magnitude 18.5) by the LINEAR survey on CCD images taken with the 1.0-m f/2.15 reflector on May 25.3. The new comet has been designated C/2012 K5 (LINEAR).

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May. 28, 2012

Recovery of comet P/2005 N3 (LARSON)

Cbet Circular No. 3123, issued on 2012, May 25, announces the recovery of comet P/2005 N3 (LARSON) = 2012 K4 (Larson) by our team; this comet was discovered on 2005, July 5.38 by S. Larson on CCD images taken in the course of the Mt. Lemmon Survey and it was last observed on 2005, December 02.

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May. 24, 2012

New Comet: P/2012 K3 (GIBBS)

Cbet nr. 3122, issued on 2012, May 23, announces the discovery of a new comet (discovery magnitude 18.3) by A. R. Gibbs on CCD images taken with the Mount Lemmon 1.5-m reflector on May 21.3. The new comet has been designated P/2012 K3 (GIBBS).

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May. 12, 2012

First images of Comet 67P close to its aphelion

Its not often that amateurs can provide an important support to professional astronomers involved in an international space mission. At a recent comet conference for the forthcoming Rosetta mission, which will orbit comet 67P/Churyumov–Gerasimenko in 2014, and place a lander on the surface.

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Apr. 23, 2012

Discovery of cometary nature of 2011 FR143

2011 FR143 was discovered by the Mt.Lemmon Sky Survey (part of the Catalina Sky Survey) on 2011 Mar. 29 and followed until Apr. 26. Its orbit was quite unusual (a=6.83 AU, e= 0.45 and a period of 17.9 yrs) and with a Tisserand parameter of 2.73 it was put in our special list of the T3 observing project.

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