Haffner 10

(MWSC 1237; OCL 594; FSR 1231)

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0.88 UTI
1.0
CN
1.0
Cdens
1.0
CC3
0.71
Clit
1.0
Cdup
Nm (P>50%) 511
Core radius and density 1.1 [pc], 22 [pc-2]
C3 classification AA
  • CN 1.0 Very rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.71 Moderately studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Haffner 10 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is moderately studied in the literature.

Note: This object shares a very small percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.58 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.58 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1299, e_all=0.1205.

Data
🔍 Search references for Haffner 10 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 99999– 112.15 -15.362 0.257 -1.176 1.575 87.994
Hu & Soubiran 2025 112.16 -15.357 – – – –
Almeida et al. 2025 112.159 -15.369 – – – –
Hunt & Reffert 2024 112.148 -15.365 0.265 -1.204 1.559 88.384
Cavallo et al. 2024 112.16 -15.357 0.264 – – –
Hunt & Reffert 2023 112.148 -15.365 0.265 -1.204 1.559 88.384
Just et al. 2023 112.139 -15.363 – – – –
Jadhav & Subramaniam 2021 112.156 -15.364 – – – –
Dias et al. 2021 112.159 -15.369 0.261 -1.126 1.562 –
Cantat-Gaudin et al. 2020 112.156 -15.364 0.259 -1.144 1.557 –
Cantat-Gaudin & Anders 2020 112.156 -15.364 0.259 -1.144 1.557 –
Soubiran et al. 2018 112.156 -15.364 – – – 86.27
Bica et al. 2019 112.144 -15.366 – – – –
Cantat-Gaudin et al. 2018 112.156 -15.364 0.259 -1.144 1.557 –
Loktin & Popova 2017 112.14 -15.364 – -4.465 4.402 –
Sampedro et al. 2017 112.15 -15.383 – – – –
Kharchenko et al. 2016 112.139 -15.363 – – – –
Dias et al. 2014 112.15 -15.383 – -1.04 -0.36 –
Kharchenko et al. 2013 112.144 -15.365 – -5.8 4.41 –
Bukowiecki et al. 2011 112.15 -15.36 – – – –
van den Bergh 2006 112.15 -15.383 – – – –
Dias et al. 2002 112.15 -15.383 – -1.04 -0.36 –
Lynga 1987 112.145 -15.389 – – – –

💡 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] Bfrac BSS
UCC 99999– 3.47 1.61 2.4 2018 -0.080 1949 – 0
Hu & Soubiran 2025 – – – – -0.240(5) – – –
Almeida et al. 2025 3.66 1.26 – 5058 – 1851 – –
Hunt & Reffert 2024 3.43 1.69 2.40 327 – 1880(1) – –
Cavallo et al. 2024 3.18 1.66 – 661 -0.020 – – –
Hunt & Reffert 2023 3.43 1.69 2.40 327 – – – –
Just et al. 2023 – – – 2018 – 2018 – –
Spina et al. 2022 – – – – -0.140 – – –
Jadhav & Subramaniam 2021 3.40 1.35 – 3802 – 3875 – 0(1)
Dias et al. 2021 3.66 1.26 – 5058 0.308 – – –
Cantat-Gaudin et al. 2020 3.40 1.35 – 3802 – – – –
Kounkel et al. 2020 3.30 1.79 – 2042 – – – –
Cantat-Gaudin & Anders 2020 3.47 – – – – – – –
Soubiran et al. 2018 3.47 – – – – – – –
Cantat-Gaudin et al. 2018 3.47 – – – – – – –
Loktin & Popova 2017 3.54 1.80 – 166 – – – –
Kharchenko et al. 2016 4.87 1.58 – 2018 – – – –
Kharchenko et al. 2013 4.87 1.58 – 2018 – – – –
Bukowiecki et al. 2011 3.61(1) 1.42 – 2818 – – – –
van den Bergh 2006 5.25 1.64 – 1259 – – – –
Dias et al. 2002 3.70 1.74 – 1995 – – – –
Lynga 1987 – – – 6 – – – –

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Czernik 29 3.5 112.11 -15.4 0.24 -1.55 1.32 88.41 0.45
HSC 1820 0.8 111.98 -15.4 0.17 -1.51 1.47 – 0.1

💡 Note: The % column shows the percentage of members that Haffner 10 shares with each listed object.

Visualization
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Haffner 10 UCC
Haffner 10 HUNT23
Haffner 10 CANTAT20
Galactocentric position diagram