Comet C/2014 Q2 (Lovejoy)
Color image obtained on 2015 Jun. 12 (21h45-21h51UT) 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) (Jun 29, 2015).

Recent observations

Type  Comet name  Obs date       Mag     Dia   DC  Tail     Observer
  V      2014Q2   2015 07 04.87   9.2     5.5  3            BIEaa
  V      2014Q2   2015 07 02.94   9.3     3    1/           PIL01
  V      2014Q2   2015 07 01.96   9.2     7.5  3            HAHab
  V      2015F4   2015 07 01.41  11.4     3.5      0.14 216 LEHa 
  V      2015F4   2015 06 29.79  12.0     1.5  4            CAM03
  V      2013US10 2015 06 29.78  10.0     3    5            CAM03
  V      2013US10 2015 06 29.22  10.0     3    4/           GOI  
  V      2013US10 2015 06 28.83   9.6    16        0.25  80 LEHa 
  V      2014Q2   2015 06 28.27 [ 9.2                       LIN03
  C      2014A4   2015 06 27.86  15.8     0.2               HILaa
  V    67         2015 06 27.81  14.0     0.6  2/           WYAab
  V     6         2015 06 27.81  13.5     1    3            CAM03
  V    88         2015 06 27.80  10.6     2    1            CAM03
  V     6         2015 06 27.78  13.6     0.7  2/           WYAab
  V      2015F4   2015 06 27.78  12.0     1.5  4            CAM03

                            

Comet Observing Planner

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Current comet magnitudes (July 1)

Comet                     Magnitude   Trend    Observable     When visible
PanSTARRS (2014 Q1)            6      bright   Conjunction
Lovejoy (2014 Q2)              9      fade     50 N to  5 S   all night
Catalina (2013 US10)           9      bright   35 N to 90 S   best morning
MASTER (2015 G2)              10      fade     Poor elongation
19P/Borelly                   10.5 ?  fade     Conjunction
Jacques (2015 F4)             11      bright   50 N to 65 S   best morning
88P/Howell                    11.5    fade     45 N to 60 S   morning
22P/Kopff                     13      steady   40 N to 60 S   evening
29P/Schwassmann-Wachmann      13 ?    varies   30 N to 90 S   best evening
Spacewatch (2011 KP36)        13.5 ?  bright   50 N to 60 S   morning
PanSTARRS (2012 F3)           13.5 ?  steady   50 N to 70 S   best morning
PanSTARRS (2012 K1)           13.5    fade     30 N to 80 S   morning
SWAN (2015 F3)                13.5    fade     45 N to 40 S   early evening
10P/Tempel                    14 ?    bright   50 N to 60 S   early evening
Tenagra (2013 C2)             14      outburst 25 N to 80 S   evening

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


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