COBS NEWS Archive

Apr. 18, 2020

New Comet P/2020 G1 (Pimentel)

CBET 4754 & MPEC 2020-H06, issued on 2020, April 17, announce the discovery of a comet (magnitude ~15) by Eduardo Pimentel on CCD images taken by Jacques, Pimentel, and J. Barros with a 0.28-m f/2.2 astrograph of the "Southern Observatory for Near Earth Research" (SONEAR) at Oliveira, Brazil. The new comet has been designated P/2020 G1 (Pimentel).

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Apr. 14, 2020

New Comet C/2020 F8 (SWAN)

CBET 4750 & 4752 & MPEC 2020-G94, issued on 2020, April 13, announce the discovery of a comet (total magnitude ~8.5) by M. Mattiazzo in the low-resolution public website hydrogen Lyman-alpha images obtained with the Solar Wind Anisotropies (SWAN) camera on the Solar and Heliospheric Observer (SOHO) spacecraft. The new comet has been designated C/2020 F8 (SWAN).

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Apr. 09, 2020

New Comet C/2020 F5 (MASTER)

CBET 4746 & MPEC 2020-G73, issued on 2020, April 08, announce the discovery of a comet (magnitude ~15.8) in images taken with the "Mobile Astronomical System of the Telescope-Robots" (MASTER) auto-detection system (0.40-m f/2.5 reflector) near San Juan, Argentina. Additional pre-discovery observations from Mar. 17.0 UT (mag 15.8-15.9), Mar. 22.0 (mag 15.8), and Mar. 23.0 (mag 15.7-15.8) were found on images taken with the MASTER 0.40-m reflector at the South African Astronomical Observatory (Sutherland). The new comet has been designated C/2020 F5 (MASTER).

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Apr. 04, 2020

Moravian Instruments Camera type keys

In order to unify the camera type abbreviation keys of all Moravian instrument models, we had to change some of the currently used camera type keys.

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Apr. 04, 2020

New Comet C/2020 F3 (NEOWISE)

CBET 4740 & MPEC 2020-G05, issued on 2020, April 01, announce the discovery of a comet (magnitude ~17) in infrared images obtained with the Near-Earth Object Wide-field Infrared Survey Explorer (or NEOWISE; formerly the WISE earth-orbitingsatellite; cf. CBET 4225). The new comet has been designated C/2020 F3 (NEOWISE).

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Apr. 03, 2020

New Comet C/2020 F2 (ATLAS)

CBET 4739 & MPEC 2020-G04, issued on 2020, April 01, announce the discovery of a comet by R. Wainscoat on CCD images obtained on Mar. 22.6 UT with the Pan-STARRS1 1.8-m Ritchey-Chretien reflector at Haleakala, which he then noticed (via posting at the Minor Planet Center's NEOCP webpage) was apparently identical with an apparently asteroidal object (magnitude ~19) discovered on CCD images taken the previous night with a 0.5-m f/2 Schmidt reflector at Haleakala, Hawaii, in the course of the "Asteroid Terrestrial-Impact Last Alert System" (ATLAS) search program. The new comet has been designated C/2020 F2 (ATLAS).

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Mar. 14, 2020

Ammonium salts found on Rosetta’s comet

Scientists have detected ammonium salts on the surface of Comet 67P/Churyumov-Gerasimenko (shown in this image bellow) by analysing data collected by the Visible, Infrared and Thermal Imaging Spectrometer (VIRTIS) on ESA’s Rosetta mission between August 2014 and May 2015.

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Feb. 07, 2020

New Comet C/2020 B3 (Rankin)

MPEC 2020-C111, issued on 2020, February 06, announces the discovery of a comet (magnitude ~20) by D. Rankin in the course of the Mt. Lemmon Survey (G96), in images taken on 2020, Jan 29 with a 1.5-m reflector + 10K CCD. The new comet has been designated C/2020 B3 (Rankin).

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Feb. 06, 2020

Rosetta and the Chameleon Comet

A grand synthesis of Rosetta data has shown how its target comet repeatedly changed colour dur-ing the two years it was watched by the spacecraft. The chameleon comet's nucleus became progres-sively less red as it made its close pass around the Sun, and then red again as it returned to deep space.

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Feb. 06, 2020

ESA starts definition phase for Comet Interceptor

Following an internal assessment of the results of the phase 0 studies, the European Space Agency is moving forward starting the Definition Phase (phase A) for the F-class mission Comet Interceptor.

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