ASCC 63

(MWSC 1869)

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0.53 UTI
0.0
CN
0.32
Cdens
0.75
CC3
0.79
Clit
1.0
Cdup
C3 classification BA
Number of members (P>50%) 20
Radius (P>50% members) 1.8 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.32 Loose
  • CC3 0.75 High quality
  • Clit 0.79 Well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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ASCC 63 is a sparse, loose object of high C3 quality. Its parallax locates it at a large* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, very young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is well-studied in the literature.

(*): The parallax distance estimate (~6.72 kpc) differs significantly from the median photometric distance (~3.50 kpc).

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

Distant Moderate extinction Massive Near-solar metallicity Very young

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for ASCC 63 in: SciX Simbad
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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 164.065 -60.457 0.149 -5.242 2.278 17.941
Hu & Soubiran 2025 164.115 -60.495 – – – –
Hunt & Reffert 2024 164.097 -60.477 0.165 -5.254 2.251 17.941
Cavallo et al. 2024 164.115 -60.495 0.164 – – –
Hunt & Reffert 2023 164.097 -60.477 0.165 -5.254 2.251 17.941
Just et al. 2023 163.973 -60.411 – – – –
Bica et al. 2019 163.973 -60.408 – – – –
Kharchenko et al. 2016 163.973 -60.411 – – – –
Dias et al. 2014 163.967 -60.41 – -2.72 -1.43 –
Kharchenko et al. 2013 163.98 -60.415 – -5.86 2.2 -142.0
Gozha et al. 2012 163.967 -60.41 – – – –
Piskunov et al. 2008 163.955 -60.404 – – – –
Kharchenko et al. 2007 163.96 -60.41 – 0.15 – -142.0
Kharchenko et al. 2005 163.96 -60.41 – -5.63 1.74 -142.0
Dias et al. 2002 163.967 -60.41 – -2.72 -1.43 -142.0

💡 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
Hu & Soubiran 2025 – – – – -0.040* – – –
Hunt & Reffert 2024 – – – – – 2701* – –
Cavallo et al. 2024 3.55 2.67 – 617 -0.580 – – –
Hunt & Reffert 2023 5.39 2.30 2.37 415 – – – –
Just et al. 2023 – – – 18 – 1337 – –
Kharchenko et al. 2016 2.69 2.45 – 18 – – – –
Kharchenko et al. 2013 2.69 2.45 – 18 – – – –
Gozha et al. 2012 3.50 – – 17 – 6026 – –
Piskunov et al. 2008 3.50 1.40 – 17 – – – –
Kharchenko et al. 2005 3.50 1.40 – 17 – – – –
Dias et al. 2002 3.50 1.40 – 17 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 508 68.0 164.1 -60.48 0.15 -5.22 2.27 18.51 0.53

💡 Note: The % column shows the percentage of members that ASCC 63 shares with each listed object.

Visualization
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ASCC 63 UCC
ASCC 63 HUNT23
Galactocentric position diagram