NGC 6840
(MWSC 3205)
Summary
NGC 6840 is a sparse, very loose object of very low C3 quality. It is located at a large distance from the Sun, well below the mid-plane. It is poorly studied in the literature, with no articles listed in the last 6 years.
Warning: contains less than 25 stars with P>0.5 estimated.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 298.825 | 12.127 | – | -0.65 | 1.01 | – |
| Kharchenko et al. (2012) | 298.83 | 12.13 | – | -3.98 | -4.25 | – |
| Loktin & Popova (2017) | 298.815 | 12.128 | – | -1.332 | -5.93 | – |
| Bica et al. (2019) | 298.816 | 12.118 | – | – | – | – |
| UCC | 298.808 | 12.138 | 0.195 | -4.778 | -5.782 | – |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.25, Dist=1970.0, Age=9.11 |
| Kharchenko et al. (2012) | e_bv=0.167, distance=2451, log_age=9.4 |
| Loktin & Popova (2017) | E(B-V)=0.077, Dist=2243, logt=9.8 |
Search coordinates in Bayestar19