Dear Sylvain, I have checked their images, and they should be the same source. You can add in the VizieR database a column named "Possible repeats" to flag these sources. Best regards, Jun Dear Sylvain, Thank you very much for your E-mail. At first sight, you are right that they are possible repeated objects. This is my carelessness, since they are from two paper, and the authors of these two papers said that these clusters are newly discovered, and did not compare their coordinates. I will at once check their images, tell you the results soon. Best regards, Jun GUEHENNEUX Sylvain (OBS) [mailto:sylvain.guehenneux@astro.unistra.fr] 2015-04-09 16:57 majun@nao.cas.cn OCVIRK Pierre (OBS) Possible repeats in 2013AJ....145...88M Dear Jun Ma, I contact you about possible repeated objects in the Table 1 of the AJ paper 2013AJ....145...88M. In the MRT version of Table 1, we find 53 repeated coordinates For example, the cluster #41 and #149 have the same coordinates. These two clusters have the same photometric values, except for the reddening (E(B-V)=0.08 for cluster #41, and E(B-V)=0.10 for cluster #149). Please find enclosed the 53 possible repeated objects we find at CDS. Could you please check in your own data and confirm that these really are possible repeats or genuinely distinct objects? In the case of repeated coordinates, we could add in the VizieR database a column named "Possible repeats" to flag these sources. Are you OK with this? Best regards, Sylvain Guehenneux