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Table 1.
Basic parameters for the newly discovered GC Gran 1, derived from the present analysis.
| Parameter | Value | Unit |
|---|---|---|
| ℓ | −1.2320 | deg |
| b | −3.9776 | deg |
| RA (J2015.5) | 17:58:36.61 | hh:mm:ss |
| Dec (J2015.5) | −32:01:10.72 | dd:mm:ss |
| E(J − Ks) | ∼0.45 | mag |
| AKs | ∼0.24 | mag |
| d⊙ | ∼8.8 | kpc |
| μℓ cos b | −10.9426 | mas yr−1 |
| μb | 3.0252 | mas yr−1 |
| μα cos δ | −8.0583 | mas yr−1 |
| μδ | −8.0833 | mas yr−1 |
| Age | ∼8−12 | Gyr |
| [Fe/H] | ∼−1 | dex |
Notes. We emphasize that the metallicity, age, and distance for the cluster are very uncertain, as they were derived using 76 stars by comparing the observed CMD with a PGPUC isochrone.
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