Table 2
Stellar parameters for BD-11 4672.
| BD-11 4672 (GJ 717) | |
|---|---|
| α (J2000) (a) | 18h33m28.8s |
| δ (J2000) (a) | − 11°38′9′′ |
| π (mas) (a) | 36.781 ± 0.046 |
| μα (mas yr−1) (a) | − 288.590 ± 0.097 |
| μδ (mas yr−1) (a) | − 235.560 ± 0.089 |
| B (mag) (b) | 11.21 ± 0.10 |
| V (mag) (b) | 9.99 ± 0.05 |
| R (mag) (c) | 9.60 ± 0.10 |
| G (mag) (a) | 9.4851 ± 0.0005 |
| J (mag) (d) | 7.651 ± 0.020 |
| H (mag) (d) | 7.031 ± 0.030 |
| K (mag) (d) | 6.867 ± 0.020 |
| Spectral type (e) | K7V |
| M⋆ (M⊙) (f) |  |
| R⋆ (R⊙) (f) |  |
| ρ⋆ (g cm−3) (f) |  |
| Teff (K) (f) | 4550 ± 110 |
| L⋆ (L⊙) (f) |  |
| logg (cgs) (f) |  |
| Age (Gyr) (f) |  |
 (g) |
− 4.65 |
| Prot (d) (g) | ~25 |
Notes. (a) Retrieved from Gaia Data Release 2 (Gaia Collaboration 2018), (b)retrieved from Høg et al. (2000), (c)retrieved from Zacharias et al. (2012), (d)retrieved from Cutri et al. (2003), (e)retrieved from Skiff (2014), (f) obtained from the SED fitting discussed in Sect. 2, (g)expected value obtained from the activity analysis discussed in Sect. 3.1
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