Comet C/2012 X1 (LINEAR) on Mar. 12, 2014
False color image of comet C/2012 X1 (LINEAR), obtained on 2014 Mar. 12 (3h07-3h12UT) with 60cm Deltagraph. Exposure time was 5x60sec.
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) (Apr 19, 2014).

Recent observations

Type  Comet name  Obs date       Mag     Dia   DC  Tail     Observer
  V      2014E2   2014 04 19.46   9.6     3    3            CAM03
  V      2012K1   2014 04 18.84  10.7:    1.5  6            KARaa
  V      2012K1   2014 04 17.86   9.7     2.8  6            BIEaa
  V      2014E2   2014 04 17.84   9.8     4.1  4            BIEaa
  V      2014E2   2014 04 17.83   9.6:  & 4.5  2/           BIEaa
  C      2012X2   2014 04 17.54  17.7     0.2               HILaa
  V      2014E2   2014 04 16.93   9.2     6    3            GOI  
  C   117         2014 04 16.83  13.9     0.2               HILaa
  C      2012X1   2014 04 16.80   8.4     2                 HILaa
  C      2012V2   2014 04 16.73  16.6     0.2               HILaa
  C   209         2014 04 15.82  16.1     0.24      1.3m 95 PRYab
  C    52         2014 04 15.39  15.8     0.2               HILaa
  C      2012X1   2014 04 14.82   8.4     2.4               HILaa
  C      2014E2   2014 04 14.42   9.7     1.4               HILaa
  C      2014AA52 2014 04 14.41  18.1     0.2               HILaa

                            

Comet Observing Planner

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Current comet magnitudes (April 16)

Comet                     Magnitude   Trend    Observable     When visible
LINEAR (2012 X1)               8.5    steady   50 N to 80 S   early morning
Jacques (2014 E2)              9.5    bright   55 N to 85 S   evening
PanSTARRS (2012 K1)            9.5    bright   65 N to 35 S   all night
Borisov (2013 V2)             11 ?    steady   65 N to  5 N   evening
Lovejoy (2013 R1)             11      fade     50 N to 75 S   morning
Siding Spring (2013 A1)       12.5 ?  bright   65 S to 70 S   early evening
290P/Jager                    13      fade     60 N to 40 S   evening
LINEAR (2012 V2)              13 ?    fade     15 S to 85 S   best morning
29P/Schwassmann-Wachmann      13 ?    varies   30 N to 85 S   best morning
LINEAR (2011 J2)              13.5 ?  fade     65 N to 60 N   early morning
LINEAR (2010 S1)              13.5 ?  fade     50 N to 55 S   early morning
LONEOS (2006 S3)              14      fade     50 N to 65 S   evening

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


Latest news

Apr. 19, 2014

Comet 209P/LINEAR & its Meteor Shower

209P/LINEAR is a periodic comet discovered by the Lincoln Laboratory Near-Earth Asteroid Research (LINEAR) survey on five images taken on 2004, February 3.40 (discovery magnitude ~18.1). Reported by LINEAR as an apparent asteroidal object, it has been found to show a narrow 1'.1 tail in p.a. 274 deg (slightly expanding toward the end) on CCD images obtained by R. H. McNaught with the 1.0-m f/8 reflector at Siding Spring on Mar. 30.8 UT.

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Apr. 02, 2014

New Comet: C/2014 F1 (HILL)

Cbet nr. 3840, issued on 2014, April 01, announces the discovery of a comet (~ magnitude 18.6) on CCD images taken on 2014, March 29.4 by R. E. Hill with the Catalina Sky Survey's 0.68-m Schmidt telescope. The new comet has been designated C/2014 F1 (HILL).

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Mar. 31, 2014

Rosetta Sets Sights on Destination Comet

The Rosetta spacecraft has caught a first glimpse of its destination comet since waking up from deep-space hibernation on Jan. 20. The first images of comet 67P/Churyumov-Gerasimenko were taken on March 20 and 21 by the Optical, Spectroscopic and Infrared Remote Imaging System (OSIRIS) wide-angle camera and narrow-angle camera. Rosetta is an international mission spearheaded by the European Space Agency with support and instruments provided by NASA.

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Mar. 27, 2014

Hubble Sees Mars-Bound Comet Sprout Multiple Jets

Comet Siding Spring is plunging toward the Sun along a roughly 1-million-year orbit. The comet, discovered in 2013, was within the radius of Jupiter's orbit when the Hubble Space Telescope photographed it on March 11, 2014.

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Mar. 18, 2014

Hubble Witnesses Asteroid's Mysterious Disintegration

NASA's Hubble Space Telescope has recorded the never-before-seen break-up of an asteroid into as many as 10 smaller pieces. Fragile comets, comprised of ice and dust, have been seen falling apart as they approach the sun, but nothing like this has ever before been observed in the asteroid belt.

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