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Table 3
YSO clusters identified in Orion A and B.
| ID | ℓ | b | RA | Dec | Stars | R | A K | Cloud | Simbad | Type |
| ◦ | ◦ | ◦ | ◦ | ′ | mag | |||||
|
|
||||||||||
| 1 | 205.8569 | −12.6041 | 88.4398 | + 00.4283 | 88 ± 14 | 5.2 | 0.2 | Ori B | NGC 2112 | OpC |
| 2 | 205.1234 | −14.1127 | 86.7727 | + 00.3486 | 78 ± 13 | 4.9 | 1.6 | Ori B | NGC 2071 | RNe |
| 3 | 205.2984 | −14.3236 | 86.6667 | + 00.0995 | 56 ± 11 | 4.1 | 1.4 | Ori B | M 78 | RNe |
| 4 | 206.4996 | −16.3341 | 85.4332 | −01.8659 | 188 ± 23 | 7.1 | 2.1 | Ori B | NGC 2024 | Cl* |
| 5 | 206.8020 | −17.3464 | 84.6710 | −02.5928 | 15 ± 4 | 2.5 | 0.1 | Ori A | sig Ori | MGr |
| 6 | 208.9681 | −19.3846 | 83.7998 | −05.3541 | 1601 ± 49 | 19.8 | 1.1 | Ori A | M 42 | HII |
| 7 | 209.9598 | −19.6021 | 84.0276 | −06.2867 | 8 ± 3 | 1.9 | 0.6 | Ori A | – | – |
| 8 | 210.1018 | −19.6036 | 84.0865 | −06.4071 | 27 ± 6 | 3.1 | 1.1 | Ori A | LDN 1641N | Cl* |
| 9 | 210.7790 | −19.4832 | 84.4813 | −06.9247 | 5 ± 3 | 1.5 | 0.6 | Ori A | [BDB2003] G210.80-19.50 | Cl* |
| 10 | 210.9941 | −19.3347 | 84.7061 | −07.0406 | 35 ± 9 | 3.6 | 1.7 | Ori A | LDN 1641C | Cl* |
| 11 | 211.4326 | −19.2912 | 84.9301 | −07.3924 | 12 ± 5 | 2.1 | 2.2 | Ori A | – | – |
| 12 | 212.4806 | −18.9864 | 85.6458 | −08.1475 | 91 ± 13 | 5.3 | 0.6 | Ori A | 2MASS J05422695-0809173 | Y*O |
| 13 | 212.9849 | −19.1519 | 85.7057 | −08.6486 | 4 ± 2 | 1.2 | 1.4 | Ori A | [BDB2003] G212.98-19.15 | Cl* |
| 14 | 213.4450 | −19.8466 | 85.2625 | −09.3407 | 10 ± 4 | 2.1 | 0.6 | Ori A | – | – |
| 15 | 214.0756 | −19.6278 | 85.7219 | −09.7820 | 32 ± 8 | 3.4 | 1.1 | Ori A | [BDB2003] G214.06-19.62 | Cl* |
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