Cluster tables

Open clusters in the UCC grouped according to various criteria to facilitate easy exploration.

Number of members

This table groups the OCs in the UCC in ranges of their estimated number of members parameter N_50. This number is obtained identifying as members those stars with P>50%, where P is the membership probability assigned by the fastMP method.

N_50 N N_50 N
== 0 14 (0, 25] 8615
(25, 50] 3960 (50, 75] 1481
(75, 100] 690 (100, 250] 1192
(250, 500] 413 (500, 1000] 151
(1000, 2000] 57 > 2000 15

C3 classification

This table shows the OCs in the UCC grouped by their C3 class.

C3 N C3 N C3 N C3 N
AA 2280 AB 3311 BA 380 AC 867
CA 202 BB 1540 AD 13 DA 86
BC 1395 CB 1177 BD 42 DB 730
CC 2146 CD 83 DC 2219 DD 117

OCs with shared members

This table groups the OCs in the UCC by the number of other OCs with which they share members. The percentage of shared members goes from <1% to 100% in some cases, which points to obvious duplicates.

OCs with shared members N
N_shared = 1 4010
N_shared = 2 1323
N_shared = 3 446
N_shared = 4 125
N_shared >= 5 63

OCs per quadrants

This table groups the OCs in the UCC by their position in the Galactic quadrants, given by their (lon, lat) coordinates.

Region lon range lat range N
Q1P: 1st quadrant, positive latitude [0, 90) [0, 90] 1940
Q1N: 1st quadrant, negative latitude [0, 90) (0, -90] 1923
Q2P: 2nd quadrant, positive latitude [90, 180) [0, 90] 1939
Q2N: 2nd quadrant, negative latitude [90, 180) (0, -90] 1828
Q3P: 3rd quadrant, positive latitude [180, 270) [0, 90] 1843
Q3N: 3rd quadrant, negative latitude [180, 270) (0, -90] 2592
Q4P: 4th quadrant, positive latitude [270, 360) [0, 90] 1901
Q4N: 4th quadrant, negative latitude [270, 360) (0, -90] 2622