ASCC 45

(MWSC 1460)

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0.66 UTI
0.76
CN
0.82
Cdens
0.5
CC3
0.6
Clit
1.0
Cdup
Radius (P>50% members) 4.7 [arcmin]
  • CN 0.76 Rich
  • Cdens 0.82 Dense
  • CC3 0.5 Intermediate quality
  • Clit 0.6 Moderately studied
  • Cdup 1.0 Unique

Overview

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ASCC 45 is a rich, dense object of intermediate C3 quality. Its parallax locates it at a moderate* distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, very young cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~3.94 kpc) differs significantly from the median photometric distance (~3.00 kpc).

Note: This object shares a moderate percentage of members with 2 later reported entries. See table with shared members information.

Distant Moderate extinction Massive Near-solar metallicity Very young

Cavallo et al. (2024)
Gold sample.

Data

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 124.091 -35.66 0.254 -2.856 3.234 –
Hunt & Reffert 2024 124.145 -35.655 0.246 -2.868 3.188 –
Cavallo et al. 2024 123.913 -35.678 0.248 – – –
Hunt & Reffert 2023 124.145 -35.655 0.246 -2.868 3.188 –
Bica et al. 2019 123.958 -35.647 – – – –
Dias et al. 2014 123.958 -35.65 – -2.84 -1.34 –
Gozha et al. 2012 123.958 -35.65 – – – –
Piskunov et al. 2008 123.958 -35.647 – – – –
Kharchenko et al. 2007 123.96 -35.65 – 0.2 – 43.0
Kharchenko et al. 2005 123.96 -35.65 – -5.68 3.19 43.0
Dias et al. 2002 123.958 -35.65 – -2.84 -1.34 43.0

💡 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
Hunt & Reffert 2024 – – – – – 205* – –
Cavallo et al. 2024 3.60 1.98 – 19 0.470 – – –
Hunt & Reffert 2023 3.56 2.06 2.28 29 – – – –
Gozha et al. 2012 3.00 – – 13 – 8128 – –
Piskunov et al. 2008 3.00 1.86 – 13 – – – –
Kharchenko et al. 2005 3.00 1.86 – 13 – – – –
Dias et al. 2002 3.00 1.86 – 13 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWNU 3997 44.5 124.13 -35.65 0.26 -2.87 3.34 – 0.05
CWNU 3273 2.5 123.7 -35.68 0.26 -2.96 3.19 – 0.12

💡 Note: The % column shows the percentage of members that ASCC 45 shares with each listed object.

Visualization

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