Platais 2
(MWSC 109; HIP 5671 Group)
0.40
UTI
0.26
CN
0.32
Cdens
0.12
CC3
0.65
Clit
1.0
Cdup
Radius (P>50% members)
7.3 [arcmin]
- CN 0.26 Poorly populated
- Cdens 0.32 Loose
- CC3 0.12 Very low quality
- Clit 0.65 Moderately studied
- Cdup 1.0 Unique
Overview
Platais 2 is a poorly populated, loose object of very low C3 quality. Its parallax locates it at a relatively close* distance, well below the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is moderately studied in the literature, with no articles listed in the last 7 years.
(*): The parallax distance estimate (~1.91 kpc) differs significantly from the median photometric distance (~0.20 kpc).
Very close
Low extinction
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 18.447 | 32.053 | 0.524 | -3.658 | -4.136 | -42.563 |
| Bica et al. | 2019 | 18.452 | 32.032 | â | â | â | â |
| Yen et al. | 2018 | 17.925 | 32.06 | 4.8 | 14.99 | -9.99 | â |
| Loktin & Popova | 2017 | 18.465 | 32.028 | â | 13.85 | -11.29 | 6.5 |
| Dias et al. | 2014 | 18.458 | 32.028 | â | 0.57 | -3.29 | â |
| Gozha et al. | 2012 | 18.458 | 32.028 | â | â | â | â |
| Piskunov et al. | 2008 | 18.244 | 32.08 | â | â | â | â |
| Kharchenko et al. | 2007 | 18.46 | 32.03 | â | 1.7 | â | 2.18 |
| Piskunov et al. | 2007 | 18.244 | 32.08 | â | â | â | â |
| van den Bergh | 2006 | 18.458 | 32.028 | â | â | â | â |
| Kharchenko et al. | 2005 | 18.25 | 32.08 | â | 13.21 | -9.98 | 0.1 |
| Dias et al. | 2002 | 18.458 | 32.028 | â | 13.85 | -11.29 | 4.45 |
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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Yen et al. | 2018 | 0.18 | 0.13 | â | 447 | â | â | â | â |
| Loktin & Popova | 2017 | 0.24 | 0.00 | â | 398 | â | â | â | â |
| Gozha et al. | 2012 | 0.20 | â | â | 398 | â | 479 | â | â |
| Piskunov et al. | 2008 | 0.20 | 0.16 | â | 347 | â | 423* | â | â |
| Piskunov et al. | 2007 | 0.20 | 0.16 | â | 347 | â | 258 | â | â |
| van den Bergh | 2006 | 0.20 | â | â | 398 | â | â | â | â |
| Kharchenko et al. | 2005 | 0.20 | 0.16 | â | 347 | â | â | â | â |
| Dias et al. | 2002 | 0.19 | 0.16 | â | 206 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
