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LMCCLUSTRS - LMC Clusters Catalog |
HEASARC Archive |
Overview
A new catalogue of clusters in the Large Magellanic Cloud has been constructed from searches of the IIIa-J component of the ESO/SERC Southern Sky Atlas. The catalogue contains coordinate and diameter measurements of 1762 clusters in a 25 deg x 25 deg area of sky centered on the LMC, but excluding the very crowded 3.5 square deg region around the Bar. The distribution of these clusters appears as two superimposed elliptical systems. The higher density inner system extends over about 8 deg; the lower density outer system can be represented by 13 deg X 10 deg disc inclined at 42 deg to the line of sight. There are suggestions of two weak "arms" in the latter.Catalog Bibcode
1990A&AS...84..527KReferences
The Cluster System of the Large Magellanic Cloud
Kontizas M., Morgan D.H., Hatzidimitriou D., Kontizas E.
<A&AS, 84, 527 (1990)>
=1990A&AS...84..527K
Parameters
BII
The Galactic latitude of the cluster.
Cluster_Class
A code for the description of the cluster, set to 'C' if
it appeared compact, or to 'L' if it appeared loose.
Dec
The declination of the cluster in the selected equinox. This was
given in J1950 equatorial coordinates to a precision of 1 arcsecond in the
original table.
Diameter
The diameter of the cluster, in parsecs. These values were
calculated from the measured angular diameters using a distance modulus for
the LMC of 18.5 (Westerlund 1989).
Kmhk_Number
KMHK Designation of cluster
LII
The Galactic longitude of the cluster.
Name
Name of the cluster
Note (1): Acronyms are as follows:
N = NGC (New General Catalogue)
IC = Index Catalogues
SL = Shapley & Lindsay 1963
LW = Lynga & Westerlund 1963
HS = Hodge & Sexton 1966
OH = Olszewski & al. 1988
A colon after the name indicates that the cluster is incorrectly
marked in the Hodge-Wright Atlas (1967)
Note (2): (Table 2)
The following clusters have cross-identifications as shown:
HS25 = LW45 LW38 not SL24
HS62 = SL102 LW97 = SL135
HS110 = LW1131 LW344 = SL798
HS149 = LW151 (not SL279) LW351 = N2162 (not SL814)
HS215 = LW181 LW452 = SL876
HS330 = LW224 SL786 = N2151
HS450 = LW371 SL798 not N2151
HS453 = LW402 (= SL844)
The following clusters in the Hodge (1980,1988) papers should have
cross-identifications as shown:
H 1.5 = HS43 H 10.189 = HS154
H 1.25 = HS65 H 10.190 = HS156
H 9.73 = SL154 H 10.198 = SL300
H 9.79 = SL162
The N,SL,HS and LW identifications are as in Note (1) above;
the H identifications refer to Hodge (1980,1938), with the first
numerical component in the identification number referring to
the field, and the second to the number within that field.
Note (3): (Table 3)
Objects previously classified as clusters but excluded from catalog
(Table 1). The numerical codes "c" are as follows:
1 Nothing detected 4 Association
2 Asterism or bright star 5 Nebula and/or dust cloud
3 Galaxy 6 Uncertain classification
NGC objects
No c No c No c No c No c
---------------------------------------------------
1557 1 1763 5 1929 5 1962 5 2035 5
1641 3 1769 5 1933 6 1965 5 2040 4
1669 3 1773 5 1934 5 1966 5 2069 4
1715 5 1820 4 1935 5 1970 5 2082 3
1737 6 1848 4 1936 5 2020 5 2103 5
1745 2 1892 3 1937 5 2029 5 2150 3
1747 4 1895 2 1945 5 2032 5 2187 3
1748 5 1925 4 1948 4 2034 4 2199 3
1760 4
IC objects
No c No c No c No c No c
---------------------------------------------------
2105 5 2115 5 2126 5 2127 5 2128 5
2114 5 2116 5
SL objects
No c No c No c No c No c
---------------------------------------------------
18 1 73 1 279 1 681 1 875 1
20 2 78 3 289 2 705 3 878 1
21 2 97 2 305 6 741 1 879 3
24 2 104 3 313 1 785 4 880 1
31 3 159 1 442 3 820 1 887 3
32 3 182 1 447 1 847 3 889 1
38 2 185 1 532 2 851 1 894 3
54 2 220 1 545 2 856 3 898 3
69 5 277 3 673 4
HS objects
No c No c No c No c No c
---------------------------------------------------
1 3 17 3 53 1 163 1 312 6
2 3 18 3 54 3 170 6 339 6
3 2 19 3 55 2 171 3 344 1
4 3 20 3 57 2 176 2 364 2
5 3 21 3 69 3 183 3 392 3
6 3 22 2 71 3 204 3 394 3
7 3 24 1 79 2 209 2 418 6
9 3 25 3 89 3 222 2 423 5
10 1 29 2 123 3 244 4 449 3
11 3 34 2 126 1 246 1 451 3
12 1 42 2 145 2 271 2 452 3
14 2 45 3 146 3 276 2 454 3
15 2 47 3 150 3 278 3 455 3
16 2 49 6 160 2 297 6
LW objects
No c No c No c No c No c
---------------------------------------------------
6 1 52 2 113 1 291 2 396 3
10 1 54 2 118 1 300 6 415 1
19 1 67 2 120 3 304 1 429 3
26 1 70 3 210 6 334 6 435 3
29 1 71 3 224 1 338 1 439 3
40 1 74 2 230 6 340 1 443 1
42 2 90 3 253 1 349 1 464 1
45 1 92 1 257 1 351 1 465 3
49 1 93 2 275 5 377 3 476 3
51 1
OH objects
No c No c No c No c No c
---------------------------------------------------
5 6 13 2 20 6 24 6 28 3
7 6 18 6 23 6 26 6 32 6
RA
The right ascension of the cluster in the selected equinox. This was
given in J1950 equatorial coordinates to a precision of 0.1 seconds of
time in the original table.
Contact Person
Questions regarding the LMCCLUSTRS database table can be addressed to the HEASARC Help Desk.Page Author: Browse Software Development Team
Last Modified: Monday, 16-Sep-2024 17:29:57 EDT
- HEASARC Director: Vacant
- NASA Official: Ryan Smallcomb
- Web Curator: J.D. Myers
- Last Modified: 16-Sep-2024