Open Access
Table 1
Global properties of HP 1 taken from Vasiliev & Baumgardt (2021) and Harris (1996, 2010 edition).
| Positional parameters | Derived value |
|---|---|
| αJ2000 (hh:mm:ss) | 17:31:05.2 |
| δJ2000 (deg:min:seg) | −29:58:54 |
| R⊙ | 7.0 ± 0.14 kpc |
| RGC | 1.26 ± 0.13 kpc |
| L (galactic longitude) | 357.425 deg |
| B (galactic latitude) | 2.115 deg |
| Structural Parameters | |
| M | 1.24 ± 0.17 × 105 M⊙ |
| rm | 3.74 pc |
| rc (core radius) | 1.26 pc |
| RV (radial velocity) | 39.76 ± 1.22 km s−1 |
| rt (tidal radius) | 19 pc |
| Photometric parameters | |
| E(B-V) | 1.12 |
| (m-M)V | 18.05 |
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