IAU Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT Unconfirmed Observations Page (NOW RETIRED)


NOTE: This webpage was in use during 2003-2010. Beginning in January 2011, the Central Bureau changed to using its new "Transient Objects Confirmation Page", to which you should now proceed.


Discovery of many kinds of transient astronomical phenomena (e.g., comets, novae, supernovae, etc.) should be reported to the CBAT. The Bureau is responsible for assigning designations to comets, supernovae, and Galactic novae. Sometimes reports are received of such objects that contain observations on only a single night (or sometimes more than one night), needing confirmation before formal announcement and designation on IAUCs (and sometimes CBETs). Below are listed temporarily such unconfirmed observations, so that interested observers may attempt confirming observations. Please report any observations (negative or positive) promptly to the CBAT at e-mail address cbat@cfa.harvard.edu.

Meteor(ite)/fireball reports should not be reported to the Bureau, but to the Fireball Data Center of the International Meteor Organization (e-mail: idac@imo.net).

Discoveries of new minor planets should be reported to the Minor Planet Center.

A listing of the information that one should include in any discovery report concerning comets, supernovae, novae, outbursts of variable stars, or features on planetary surfaces is available.

If you wish to report a discovery you may report it in this manner. Please ensure that you have read the documentation on what information you should include in your report --- incomplete reports may be ignored. You should e-mail a report directly to cbat@cfa.harvard.edu.

Please read this to see how to represent non-standard characters.


The unconfirmed observations are listed below in plain ASCII text in essentially the 80-column format used for MPC astrometry, for columns 16-71 -- the exception being that one should put the galaxy designation in the first 14 columns for supernovae candidates (psn for "possible supernova"; sn for "supernova already confirmed spectroscopically"), the 3-letter constellation abbreviation for novae and other non-solar-system candidates, and "poss.comet" for comet candidates; and columns 73-80 are used for supernova-suspect offsets in arcsec from the host galaxy's center as follows:

                                                                           
70       80                                                                     
 123456789                                                                      
   xxxEyyyN                                                                     

where 'xxx' is the rounded-even digits (flush right) for arcsec (NOT seconds of time) of right ascension, the 'E' would be used if the supernova is east of the galaxy center (otherwise 'W' for west), 'yyy' is the rounded-even digits (flush right) for arcsec of declination, the 'N' would be used if the supernova is north of the galaxy center (otherwise 'S' for south). In column 71 after the magnitude, use `U' for unfiltered CCD, `T' for technical-pan film, `V' for V magnitude, `R' for R or red magnitude, lower-case `v' for visual magnitude, etc. NOTE: In Oct. 2004, as per interest by observers, we added two columns to aid observers in judging the quality of the candidates below: (1) in column 83 is given a number from 0 to 9, specifying the number of previously designated (and not later retracted) supernovae discovered by the same observer (as listed in the CBAT webpage file of supernovae); the number 9 signifies 9 or more discoveries. (2) in column 85 is the number of days between known frames taken by the discoverer (and others, if relevant), with a nine (9) indicating nine or more days, a zero (0) signifying 0.5 day or less, and a dash (-) indicating only a single frame (a blank indicates that this datum is unknown). NOTE that we are discontinuing our policy of posting anything here based on single images: observers *must* report that two images confirm the reality of the object (to rule out imaging flaws), and it is preferred that images be taken at least 20-30 minutes apart (for telescopic imagery; 1-2 hours for smaller-scale camera-lens imagery) to rule out such things as minor planets, in order for objects to be posted here.


                                                                           
         1         2         3         4         5         6         7         8
123456789 123456789 123456789 123456789 123456789 123456789 123456789 123456789 
                                                                                
OBJECT         Date (UT)         R.A. (2000.0) Decl.             Mag. p  Offset   A C     
                                                                                          
var/Ret        2005 03 24.507   04 11 09.4  -59 11 17            12.2 U           3 0     
var/And        2006 08 26.978   22 58 44.37 +46 23 37.6          16.3 U           9 6     
var/Cas        2007 01 29.75    03 17 36.48 +74 59 31.2          15.8 U           1 7     
var/Leo        2007 10 16.239   10 29 47.36 +10 57 12.1          14.5 U           0 0     
var/Pic        2008 02 24.09    05 59 24.08 -51 25 22.0          13.3 R           9 1     
psn            2008 02 28.33    10 53 00.81 -07 56 55.9          19.2 U           0 6     
psn/var        2008 07 12.18    12 56 42.68 +27 30 40.6          16.7 U           9 4     
psn/var/UGC761 2008 07 19.48    01 13 13.60 +50 38 35.8          18.0 U           9 1     
var/Del        2008 08 27.935   20 38 38.67 +06 00 07.7          15.9 R           1 1     
psn            2008 08 29.890   21 42 54.29 +15 36 42.5          16.0 R           0 1     
psn            2008 09 08.88    22 42 07.04 +29 22 28.4          16.5 R   8W  9N  1 5     
psn/PGC138     2008 10 22.3153  00 01 53.64 -36 50 29.2          21.0 R   4E 28N  0 0     
psn            2008 10 29.40    05 16 40.97 +06 25 41.5          19.0 U           1 9     
var/Tri        2008 12 01.31    02 33 28.60 +32 43 19.7          18.7 U           1 9     
psn            2008 10 09.24    00 21 51.39 -16 32 03.8          18.8 U           9 9     
psn/Eri        2008 10 30.36    04 36 55.20 -00 21 35.6          18.1             9 9     
psn/Leo        2008 10 30.51    10 05 00.27 +14 22 49.9          18.3             9 9     
psn/Ari        2008 11 18.18    02 53 14.87 +20 06 13.2          18.9             9 9     
psn/Cet        2008 11 19.21    01 30 54.81 -01 42 08.2          19.2             9 9     
psn/Cet        2008 11 19.21    01 59 30.24 -01 26 21.3          18.3             9 9     
psn/Cnc        2008 11 30.34    08 28 17.16 +30 24 54.1          19.7             9 9     
psn/Cet        2008 12 01.27    02 37 59.31 +01 30 29.3          18.4             9 9     
psn/Sex        2008 12 01.52    10 33 53.80 -03 21 25.4          18.3             9 9     
psn/Leo        2008 12 04.52    11 09 32.94 +27 24 40.3          18.1             9 9     
psn/Ari        2008 12 20.17    02 16 52.47 +13 55 00.7          17.9             9 9     
psn/Leo        2008 12 22.50    09 39 49.91 +07 03 47.8          18.7    16E  9S  9 9     
psn/Com        2008 12 22.55    12 11 50.13 +15 54 51.3          19.4             9 9     
psn/Vir        2008 12 29.55    13 45 26.56 -10 43 52.8          17.9             9 9     
pn/M33         2009 01 07.53586 01 33 40.39 +30 25 42.0          17.0 U 136W835S  9 0     
var/Per        2009 01 30.22    03 57 01.95 +34 10 22.5          19.3 U  90W 44N  9 1     
var/Cen        2009 03 14.16    14 08 14    -60 24 43            10.0 U           0 9     
psn            2009 03 27.33    12 27 27.20 +08 57 01.9          18.8 U  26E  1N  9 9     
var/Gem        2009 10 21.50    06 53 43.71 +19 19 00.5          18.3 U 158W 62N  9 1     
psn/IC1781     2009 10 13.98    02 06 53.25 -00 31 22.3          18.3 U   6E 18S  0 9     
var/Gem        2009 11 10.8811  06 26 57.68 +24 29 06.8          16.2 U           1 7     
psn            2009 11 25.38    01 29 46.05 +32 01 10.0          19.6 R   2W  6S  3 0     
psn            2009 12 10.73    02 09 01.72 +05 01 00.6          19.5 U   3W  1N  3 0     
psn/NGC4857    2009 12 19.622   12 57 16.01 +70 12 28.1          19.4 U  12W 16N  9 0     
psn            2009 11 21.478   12 10 05.02 +43 26 42.6          19.5 R   4W  8N  3 9     
psn/PGC47323   2010 02 08.92    13 29 15.92 +46 30 14.0          15.8 U           0 0     
psn            2010 03 11.77174 12 59 24.03 +27 59 47.1          16.9 U  12W  1S  9 0     
psn            2010 03 15.113   14 41 55    +10 44 52            17   U   5E  6N  0 0     
psn            2010 03 19.75    12 39 48.34 +05 15 43.0          19.5 U   9W 10N  3 1     
psn            2010 03 14.687   12 29 53.63 +47 00 38.6          14.1 U 188W 14N  3 9     
psn/UGC10586   2010 06 16.24    16 50 44.56 +45 24 17.4          19.5 U  42W  6N  0 3     
psn/PGC164267  2010 07 10.124   22 48 31.67 -07 45 50.1          19.3 U  16N  8W  2 0     
psn            2010 07 06.17    14 15 31.74 -09 43 55.9          17.2 U   1E  0S  9 1     
psn            2010 07 05.43    23 29 38.53 +08 00 28.9          19.1 U   0E  1N  9 9     
psn            2010 08 06.132   02 11 48.19 +13 09 19.7          18.0 U   4W  3S  6 0     
var/Cep        2010 08 22.905   21 05 12.29 +69 12 55.3          16.2 R           4 4     
psn/PGC46952   2010 09 25.624   13 25 36.66 +57 48 52.7          17.5 U           3 -     
psn            2010 09 08.943   00 15 36.54 +27 14 26.5          17.4 U  41E 95S  7 9     
psn/NGC5430    2010 10 03.605   14 00 47.14 +59 20 16.8          17.2 U           4 0     
psn            2010 09 16.36    00 51 28.72 -17 38 27.6          18.9 U  49W 50N  9 9     
psn            2010 09 16.36    00 35 51.43 -16 03 23.6          17.2 U   2E  3N  9 9     
pn/M33         2010 12 17.42126 01 34 18.01 +30 43 58.0          16.6 U 350E261N  9 0     
psn/IC1748     2010 01 03.12    01 56 07.19 +17 38 46.8          19.0 U  22W 16N  9 1     
psn/ESO566-18  2011 01 06.909   09 50 24.99 -21 51 45.1          15.8 U   1E  1N  9 2     
psn/UGC2498    2011 01 06.30    03 02 14.53 +17 20 58.3          18.2 U  34E 15N  9 3     
psn/MCG-1-2-14 2011 01 07.08    00 26 19.23 -04 29 42.4          15.8 U  28E 11S  9 1     
psn/UGC7799    2011 01 07.60    12 37 57.35 +34 01 09.0          18.7 U  20E 10S  9 1     
pn/M31         2011 01 07.43225 00 42 42.59 +41 19 14.4          18.4 U  19W186N  9 1     
var/Ori        2011 01 08.597   06 19 59.96 +19 26 59.0          14.4 U           0 0     
                                                                                

NOTE: Older objects from this webpage that were not published on CBAT publications have been moved to this webpag

NOTE: These data should not be posted on any other webpage at any other website, and they should not be sent to any regular mass e-mail list. If abuses are found, we may have to discontinue this website feature. This webpage is being posted as an experiment for those interested in helping to confirm discovery reports that are not quite ready for announcement.



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