Haffner 12

(NGC 2425; MWSC 1291; OCL 599; FSR 1238; FoF 377)

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0.95 UTI
1.0
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 600
Stellar density (N50/rad) 36.1 [N/pc2]
C3 classification AB
  • CN 1.0 Very rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
Haffner 12 is a very rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, old cluster (see Parameters). It is very well-studied in the literature.

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

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for Haffner 12 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 114.578 -14.888 0.292 -3.558 2.006 103.432
Li et al. 2025 114.577 -14.885 0.257 -3.571 2.004 –
Hu & Soubiran 2025 114.575 -14.88 – – – –
Almeida et al. 2025 114.572 -14.883 – – – –
Hunt & Reffert 2024 114.58 -14.888 0.284 -3.573 2.011 103.907
Cavallo et al. 2024 114.575 -14.88 0.285 – – –
Hunt & Reffert 2023 114.58 -14.888 0.284 -3.573 2.011 103.907
Just et al. 2023 114.556 -14.878 – – – –
Dias et al. 2021 114.572 -14.883 0.254 -3.561 1.997 103.045
Cantat-Gaudin et al. 2020 114.577 -14.885 0.257 -3.571 2.004 –
SΓ‘nchez et al. 2020 114.571 -14.878 – -3.53 1.837 –
Cantat-Gaudin & Anders 2020 114.577 -14.885 0.257 -3.571 2.004 –
Liu & Pang 2019 114.572 -14.881 0.272 -3.571 1.987 –
Bossini et al. 2019 114.577 -14.885 – – – –
Soubiran et al. 2018 114.577 -14.885 – – – 103.13
Bica et al. 2019 114.576 -14.882 – – – –
Cantat-Gaudin et al. 2018 114.577 -14.885 0.257 -3.571 2.004 –
Loktin & Popova 2017 114.57 -14.892 – -3.127 0.186 102.9
Kharchenko et al. 2016 114.556 -14.878 – – – –
Dias et al. 2014 114.571 -14.878 – -2.7 1.0 –
Kharchenko et al. 2013 114.562 -14.88 – -2.86 0.61 102.9
Gozha et al. 2012 114.571 -14.878 – – – –
van den Bergh 2006 114.575 -14.867 – – – –
Dias et al. 2002 114.571 -14.878 – -2.7 1.0 102.9

πŸ’‘ 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– 3.5 0.84 0.23 2188 -0.071 1824 – –
Li et al. 2025 3.17 0.99 – 2670 -0.071 – – –
Hu & Soubiran 2025 – – – – -0.200(5) – – –
Almeida et al. 2025 2.71 0.84 – 4018 – 1294 – –
Hunt & Reffert 2024 – – – – – 3156(1) – –
Cavallo et al. 2024 2.62 1.19 – 2818 -0.210 – – –
Hunt & Reffert 2023 3.15 0.83 0.23 1977 – – – –
Just et al. 2023 – – – 2188 – 1824 – –
Dias et al. 2021 2.71 0.84 – 4018 0.047 – – –
Cantat-Gaudin et al. 2020 3.58 0.89 – 2399 – – – –
Cantat-Gaudin & Anders 2020 3.50 – – – – – – –
Liu & Pang 2019 – – – 2950 0.000 – – –
Bossini et al. 2019 3.38 0.88 – 2153 -0.150 – – –
Soubiran et al. 2018 3.50 – – – – – – –
Cantat-Gaudin et al. 2018 3.50 – – – – – – –
Loktin & Popova 2017 3.97 0.84 – 2239 – – – –
Kharchenko et al. 2016 4.33 0.65 – 2188 – – – –
Kharchenko et al. 2013 4.33 0.65 – 2188 0.000 – – –
Gozha et al. 2012 3.55 – – 2188 0.000 – – –
van den Bergh 2006 4.05 0.96 – 1585 – – – –
Dias et al. 2002 3.55 0.65 – 2188 -0.150 – – –

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

Visualization
ℹ️
Haffner 12 UCC
Haffner 12 HUNT23
Haffner 12 CANTAT20
Galactocentric position diagram