Ruprecht 142
(MWSC 2943)
0.21
UTI
0.0
CN
0.08
Cdens
0.38
CC3
0.3
Clit
1.0
Cdup
Stellar density (N50/rad)
0.4 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.08 Very loose
- CC3 0.38 Low quality
- Clit 0.3 Poorly studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
Ruprecht 142 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate* distance, below the mid-plane, affected by high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature, with no articles listed in the last 10 years.
(*): The parallax distance estimate (~3.21 kpc) differs significantly from the median photometric distance (~1.77 kpc).
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 278.035 | -12.239 | 0.312 | -3.265 | -5.009 | 22.162 |
| Kharchenko et al. | 2016 | 278.047 | -12.217 | â | â | â | â |
| Dias et al. | 2014 | 278.046 | -12.23 | â | -0.81 | -1.08 | â |
| Kharchenko et al. | 2013 | 278.055 | -12.215 | â | -2.88 | -5.67 | â |
| Morales et al. | 2013 | 278.046 | -12.23 | â | â | â | â |
| Dias et al. | 2002 | 278.046 | -12.23 | â | -0.81 | -1.08 | 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 | 1.77 | 3.1 | â | 368 | â | â | â | â |
| Kharchenko et al. | 2016 | 1.80 | 3.10 | â | 339 | â | â | â | â |
| Kharchenko et al. | 2013 | 1.80 | 3.10 | â | 339 | â | â | â | â |
| Morales et al. | 2013 | 1.74 | â | â | 400 | â | â | â | â |
| Dias et al. | 2002 | 1.74 | 2.82 | â | 398 | â | â | â | â |
Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.