ASCC 85

(MWSC 2465)

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0.88 UTI
0.66
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 82
Radius (P>50% members) 13.2 [arcmin]
  • CN 0.66 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
ASCC 85 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.
Close Low extinction Near-solar metallicity Young

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for ASCC 85 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 251.823 -45.562 1.139 0.155 -4.123 7.853
Li et al. 2025 251.853 -45.555 1.119 0.17 -4.102 –
Wei et al. 2025 251.767 -45.608 1.146 0.153 -4.147 –
Almeida et al. 2025 251.822 -45.541 – – – –
Alfonso et al. 2024 251.874 -45.544 1.099 0.169 -4.122 –
Hunt & Reffert 2024 251.924 -45.572 1.137 0.163 -4.108 8.013
Cavallo et al. 2024 252.009 -45.388 1.135 – – –
Hunt & Reffert 2023 251.924 -45.572 1.137 0.163 -4.108 8.013
Almeida et al. 2023 251.697 -45.519 – – – –
Just et al. 2023 251.944 -45.49 – – – –
He et al. 2022 251.784 -45.574 1.138 0.157 -4.117 –
Tarricq et al. 2022 251.733 -45.6 1.139 0.152 -4.108 –
Dias et al. 2021 251.822 -45.541 1.125 0.179 -4.098 19.977
Cantat-Gaudin et al. 2020 251.853 -45.555 1.119 0.17 -4.102 –
Cantat-Gaudin & Anders 2020 251.853 -45.555 1.119 0.17 -4.102 –
Soubiran et al. 2018 251.853 -45.555 – – – 16.48
Bica et al. 2019 251.879 -45.458 – – – –
Cantat-Gaudin et al. 2018 251.853 -45.555 1.119 0.17 -4.102 –
Kharchenko et al. 2016 251.944 -45.49 – – – –
Dias et al. 2014 251.879 -45.46 – -1.17 -3.01 –
Kharchenko et al. 2013 251.955 -45.49 – -1.31 -3.93 7.1
Gozha et al. 2012 251.879 -45.46 – – – –
Piskunov et al. 2008 251.87 -45.466 – – – –
Kharchenko et al. 2007 251.88 -45.46 – 0.22 – 7.09
Kharchenko et al. 2005 251.88 -45.46 – -0.43 -4.01 7.09
Dias et al. 2002 251.879 -45.46 – -0.43 -4.01 7.09

💡 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
Li et al. 2025 0.93 0.56 – 173 0.349 – – –
Wei et al. 2025 1.03 0.95 – 68 -0.250 400 0.35 –
Almeida et al. 2025 0.85 0.73 – 138 – 311 – –
Alfonso et al. 2024 0.83 0.56 – 92 0.096 – – –
Hunt & Reffert 2024 – – – – – 531* – –
Cavallo et al. 2024 0.78 0.71 – 182 0.150 – – –
Hunt & Reffert 2023 0.83 0.52 0.65 124 – – – –
Almeida et al. 2023 0.85 0.75 – 185 0.056 383* 0.45 –
Just et al. 2023 – – – 32 – 65 – –
He et al. 2022 – 0.90 – 79 – – – –
Tarricq et al. 2022 0.81 – – 78 – – – –
Dias et al. 2021 0.85 0.73 – 138 0.097 – – –
Cantat-Gaudin et al. 2020 0.83 0.56 – 71 – – – –
Cantat-Gaudin & Anders 2020 0.87 – – – – – – –
Soubiran et al. 2018 0.87 – – – – – – –
Cantat-Gaudin et al. 2018 0.87 – – – – – – –
Kharchenko et al. 2016 0.81 1.62 – 32 – – – –
Kharchenko et al. 2013 0.81 1.62 – 32 – – – –
Gozha et al. 2012 1.20 – – 26 – 562 – –
Piskunov et al. 2008 1.20 0.62 – 26 – – – –
Kharchenko et al. 2005 1.20 0.62 – 26 – – – –
Dias et al. 2002 1.20 0.62 – 26 – – – –

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

Visualization
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ASCC 85 UCC
ASCC 85 HUNT23
ASCC 85 CANTAT20
Galactocentric position diagram