Ruprecht 87
(MWSC 1783)
0.23
UTI
0.0
CN
0.01
Cdens
0.12
CC3
0.5
Clit
1.0
Cdup
Nm (P>50%)
17
Core radius and density
4.7 [pc], 0.06 [pc-2]
- CN 0.0 Sparse
- Cdens 0.01 Very loose
- CC3 0.12 Very low quality
- Clit 0.5 Moderately studied
- Cdup 1.0 Unique
Overview
Ruprecht 87 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is moderately studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 153.888 | -50.716 | 0.197 | -6.236 | 3.229 | â |
| Just et al. | 2023 | 153.864 | -50.706 | â | â | â | â |
| Dias et al. | 2018 | â | â | â | -6.37 | 2.88 | â |
| Sampedro et al. | 2017 | 153.883 | -50.717 | â | -5.85 | 0.88 | â |
| Dias et al. | 2016 | 153.883 | -50.717 | â | -5.91 | 1.23 | â |
| Kharchenko et al. | 2016 | 153.864 | -50.706 | â | â | â | â |
| Dias et al. | 2014 | 153.883 | -50.717 | â | -5.91 | 1.23 | â |
| Kharchenko et al. | 2013 | 153.87 | -50.71 | â | -8.2 | 6.85 | â |
| Dias et al. | 2002 | 153.883 | -50.717 | â | â | â | â |
| Lynga | 1987 | 153.864 | -50.713 | â | â | â | â |
| Alter et al. | 1970 | 153.864 | -50.713 | â | â | â | â |
đĄ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 5.25 | 1.44 | â | 966 | â | 300 | â | â |
| Just et al. | 2023 | â | â | â | 966 | â | 300 | â | â |
| Dias et al. | 2016 | 5.25 | 1.44 | â | 966 | â | â | â | â |
| Kharchenko et al. | 2016 | 5.25 | 1.44 | â | 966 | â | â | â | â |
| Kharchenko et al. | 2013 | 5.25 | 1.44 | â | 966 | â | â | â | â |
MOCA
