Comet C/2014 E2 (Jacques) on 2014 Aug. 09
False color unfiltered image of comet C/2014 E2 (Jacques), obtained on 2014 Aug. 9 (2h37-2h40UT) with 60-cm, f/3.3 Deltagraph telescope. Exposure time was 6x30 seconds. Copyright © 2014 H. Mikuz, OCV.

Welcome to COBS!

Between 1989-1997 an intensive comet photometry program at Crni Vrh Observatory resulted in contribution of hundreds of CCD observations to the ICQ database and IAU Circulars. This also created a need for an online observational database. The first version was created in 2002 and was used by Slovenian comet observers. The database contained 35 visually observed comets during the period 2002-2008. The best observed comets, with complete light-curves collected have been C/2002 C1 (Ikeya-Zhang), C/2002 V1 (NEAT), C/2001 Q4 (NEAT) and C/2004 Q2 (Machholz) as well as outburst of comet 17P/Holmes in late 2007.

The Comet Observation Database (COBS) is unique service, offering comet observers to submit, display and analyse comet data in a single location. It is maintained by the Crni Vrh Observatory and is opened to comet observers worldwide. Registered observers may now submit the observations using a simple web-based form which will store their observations into an SQL database and display them in ICQ format. Furthermore the users will be able to create light-curve graphs of selected comets and see all the observations. We encourage comet observers worldwide to submit their observations and contribute to the COBS database.

Observers are reminded that the ultimate address which is collecting and storing comet data is International Comet Quarterly.

Light-curve of Comet C/2014 E2 (Jacques) (Sep 01, 2014).

Recent observations

Type  Comet name  Obs date       Mag     Dia   DC  Tail     Observer
  V      2013V5   2014 09 01.47   7.7     4    4   0.2  260 HER02
  V      2014E2   2014 09 01.44   7.7     8    5            HER02
  V      2014E2   2014 08 31.88   7.2    12    3    6.0m160 HAR11
  V      2013V5   2014 08 31.78   8.6     2    5   20.0m260 CAM03
  V      2013A1   2014 08 31.77   9.6     2    4    3.0m340 CAM03
  V      2012X1   2014 08 31.76  11.0     3    3            CAM03
  V      2014E2   2014 08 31.43   7.0     8    5            LIN03
  C      2013V5   2014 08 31.42   9.1     2.11              CER01
  C      2013V5   2014 08 31.42   9.4     1.4               CER01
  V      2012K1   2014 08 31.36   6.8:    4    4            GOI  
  V      2013V5   2014 08 31.35   8.1     5    4/           GOI  
  V      2013A1   2014 08 31.25   9.8     4    3            GOI  
  V      2012X1   2014 08 31.23  10.9     2    3            GOI  
  V      2013V5   2014 08 31.14   8.8     3    3            VAN16
  V      2013V5   2014 08 30.49   7.6     5    3            HER02

                            

Comet Observing Planner

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Current comet magnitudes (August 16)

Comet                     Magnitude   Trend    Observable     When visible
Jacques (2014 E2)              7      fade     60 N to 25 S   all night
PanSTARRS (2012 K1)            7.5    bright   25 N to 15 S   Conjunction
Oukaimeden (2013 V5)           8.5    bright   50 N to 60 S   early morning
Siding Spring (2013 A1)       10      bright   20 N to 90 S   best morning
LINEAR (2012 X1)              10.5    fade     20 N to 90 S   all night
29P/Schwassmann-Wachmann      13 ?    varies   25 N to 85 S   evening
117P/Helin-Roman-Alu          13      fade     30 N to 85 S   best evening
4P/Faye                       13.5 ?  fade     Poor elongation
PanSTARRS (2012 F3)           13.5    steady   30 N to 60 S   evening
Catalina (2013 UQ4)           13.5    fade     50 N to 30 S   early evening
LINEAR (2010 S1)              13.5    fade     55 N to 65 S   evening
LINEAR (2011 J2)              13.5 ?  fade     60 N to  5 S   all night

List of comets maintained by Jonathan Shanklin at http://www.ast.cam.ac.uk/~jds.


Latest news

Aug. 26, 2014

Rosetta: Landing site search narrows

The European Space Agency's Rosetta mission has chosen five candidate landing sites on comet 67P/Churyumov-Gerasimenko for its Philae lander. Philae's descent to the comet's nucleus, scheduled for this November, will be the first such landing ever attempted. Rosetta is an international mission spearheaded by the European Space Agency with support and instruments provided by NASA.

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Aug. 26, 2014

New Comet: C/2014 Q3 (BORISOV)

Cbet nr. 3936, issued on 2014, August 24, announces the discovery of a comet (magnitude ~17) by G. Borisov (Observatory MARGO, Nauchnij) on CCD images obtained with a 0.3-m f/1.5 astrograph telescope on 2014, August 22.02. The new comet has been designated C/2014 Q3 (BORISOV).

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Aug. 20, 2014

Colliding Atmospheres: Mars vs Comet Siding Spring

On October 19, 2014, Comet Siding Spring will pass by Mars only 132,000 km away--which would be like a comet passing about 1/3 of the distance between Earth and the Moon. The nucleus of the comet won't hit Mars, but there could be a different kind of collision.

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Aug. 18, 2014

As Seen by Rosetta: Comet Surface Variations

A new image of comet 67P/Churyumov-Gerasimenko shows the diversity of surface structures on the comet's nucleus. It was taken by the Rosetta spacecraft's OSIRIS narrow-angle camera on August 7, 2014. At the time, the spacecraft was 65 miles (104 kilometers) away from the 2.5-mile-wide (4-kilometer) nucleus.

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Aug. 12, 2014

Comets forge organic molecules in their dusty atmospheres

Scientists have made incredible 3D images of the ghostly atmospheres surrounding comets ISON and Lemmon. These new observations provided important insights into how and where comets forge new chemicals, including intriguing organic compounds.

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