Platais 2

(MWSC 109; HIP 5671 Group)

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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

â„šī¸
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

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 18.447 32.053 0.524 -3.658 -4.136 -42.563
Bica et al. 2019 18.452 32.032 – – – –
Yen et al. 2018 17.925 32.06 4.8 14.99 -9.99 –
Loktin & Popova 2017 18.465 32.028 – 13.85 -11.29 6.5
Dias et al. 2014 18.458 32.028 – 0.57 -3.29 –
Gozha et al. 2012 18.458 32.028 – – – –
Piskunov et al. 2008 18.244 32.08 – – – –
Kharchenko et al. 2007 18.46 32.03 – 1.7 – 2.18
Piskunov et al. 2007 18.244 32.08 – – – –
van den Bergh 2006 18.458 32.028 – – – –
Kharchenko et al. 2005 18.25 32.08 – 13.21 -9.98 0.1
Dias et al. 2002 18.458 32.028 – 13.85 -11.29 4.45

💡 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 – 447 – – – –
Loktin & Popova 2017 0.24 0.00 – 398 – – – –
Gozha et al. 2012 0.20 – – 398 – 479 – –
Piskunov et al. 2008 0.20 0.16 – 347 – 423* – –
Piskunov et al. 2007 0.20 0.16 – 347 – 258 – –
van den Bergh 2006 0.20 – – 398 – – – –
Kharchenko et al. 2005 0.20 0.16 – 347 – – – –
Dias et al. 2002 0.19 0.16 – 206 – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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