Comet C/2014 Q2 (Lovejoy)
True color image obtained on 2015 Feb. 20 (19h37-19h43UT) with 60-cm, f/3.3 telescope and LBVR filters. Exposure time was 60s in each filter. Copyright © 2015 by H. Mikuz, Crni Vrh Observatory.

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 are 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.

Light-curve of Comet C/2014 Q2 (Lovejoy) (Mar 02, 2015).

Recent observations

Type  Comet name  Obs date       Mag     Dia   DC  Tail     Observer
  V      2014Q2   2015 03 02.86   5.7     8    3   0.67  55 HAR11
  V      2014Q2   2015 03 02.85   5.6     9    4   0.5   60 MEY  
  V      2014Q2   2015 03 01.88   5.6     8    3   1.0   48 HAR11
  V      2014Q2   2015 03 01.77   5.5     8    4/  0.3   55 MEY  
  V    88         2015 03 01.33  10.5     2.5  4            GOI  
  V      2014Q2   2015 03 01.09   5.6     7    2/           AGUag
  V      2014Q2   2015 02 28.78   5.6     8    4   0.85  54 HAR11
  V      2014Q2   2015 02 28.77   5.5     8    4/  0.3   65 MEY  
  V      2013C2   2015 02 27.19  14.0:    0.25 7/           GOI  
  V      2014Q2   2015 02 27.09   5.6   & 7    3/           AGUag
  C    29         2015 02 26.72  13.1     0.3               DYMaa
  C      2013UQ4  2015 02 26.72  17.9     0.2               HILaa
  V      2014Q2   2015 02 26.10   5.5   & 7    3/           AGUag
  V      2014Q2   2015 02 25.86   5.9                       HOLab
  C    32         2015 02 25.55  13.4     0.3               HILaa

                            

Comet Observing Planner

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Current comet magnitudes (March 3)

Comet                     Magnitude   Trend    Observable     When visible
Lovejoy (2014 Q2)              5.5    fade     80 N to  5 S   all night
88P/Howell                    10.5    bright   30 N to 65 S   morning
SWAN (2015 C2)                11.5    steady   Poor elongation
Catalina (2013 US10)          11.5    bright   Conjunction
15P/Finlay                    12      fade     80 N to 25 S   evening
Siding Spring (2013 A1)       12      steady   80 N to 25 S   morning
PanSTARRS (2012 K1)           12.5    fade     Poor elongation
Borisov (2014 R1)             13      fade     45 N to 60 S   morning
Oukaimeden (2013 V5)          13      fade     70 N to 45 S   morning
29P/Schwassmann-Wachmann      13 ?    varies   25 N to 70 S   morning
PanSTARRS (2012 F3)           13.5 ?  steady   30 N to 50 S   morning
32P/Comas Sola                14      fade     70 N to 30 S   best morning
PanSTARRS (2014 Q1)           14 ?    bright   Conjunction

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


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