Comet C/2014 Q2 (Lovejoy)
True color image obtained on 2015 Jan. 19 (18h28-18h40UT) with 60-cm, f/3.3 telescope and LBVR filters. Exposure time was 4x20s 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) (Jan 30, 2015).

Recent observations

Type  Comet name  Obs date       Mag     Dia   DC  Tail     Observer
  V      2014Q2   2015 01 31.75   4.7    12   D5            MEY  
  V      2014Q2   2015 01 30.98   4.6    15    6            GOI  
  V      2014R1   2015 01 30.72  12.7     1.5  3            CAM03
  C      2014W11  2015 01 30.51  14.6     0.5               HILaa
  C      2014AA52 2015 01 30.46  15.5     0.2               HILaa
  V      2014R1   2015 01 29.72  12.7     1.5  3            CAM03
  C      2014A4   2015 01 29.48  15.3     0.2               HILaa
  C      2012K1   2015 01 29.46  11.3     0.6               HILaa
  V      2014Q2   2015 01 29.08   4.4    14    3/           AGUag
  C     4         2015 01 28.51  14.4     0.4               HILaa
  V      2014Q2   2015 01 28.12   4.3:  &14    4/           AGUag
  V      2014Q2   2015 01 26.91   4.7    15    6   0.3   80 BIEaa
  V      2014Q2   2015 01 26.91   4.5:  &17    2/           BIEaa
  V      2014Q2   2015 01 26.84   4.5    18    4   0.9   78 SKOaa
  C      2013V5   2015 01 26.76  15.3     0.2               HILaa

                            

Comet Observing Planner

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Current comet magnitudes (January 17)

Comet                     Magnitude   Trend    Observable     When visible
Lovejoy (2014 Q2)              4.5    fade     90 N to 50 S   best evening
15P/Finlay                     8.5    fade ?   70 N to 30 S   evening
PanSTARRS (2012 K1)           11      fade     35 N to 50 S   evening
Borisov (2014 R1)             12      fade     50 N to 40 S   early morning
Siding Spring (2013 A1)       12      steady   60 N to 25 N   early morning
Catalina (2013 US10)          12.5    bright   Poor elongation
Oukaimeden (2013 V5)          12.5    fade     60 N to 25 S   morning
29P/Schwassmann-Wachmann      13 ?    varies   Poor elongation
PanSTARRS (2012 F3)           13.5 ?  steady   Poor elongation
32P/Comas Sola                13.5    steady   70 N to 35 S   morning
Borisov (2014 Q3)             13.5    fade     90 N to 40 N   evening &
17P/Holmes                    13.5    fade     90 N to  5 S   best evening
PanSTARRS (2014 Q1)           15 ?    bright   Poor elongation

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


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