Hogg 19

(MWSC 2415; OCL 969; ESO 226 11)

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0.79 UTI
0.54
CN
1.0
Cdens
0.75
CC3
0.82
Clit
1.0
Cdup
C3 classification BA
Number of members (P>50%) 58
Radius (P>50% members) 2.7 [arcmin]
  • CN 0.54 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.82 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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Hogg 19 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.
Relatively close Moderate extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Hogg 19 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 – 247.237 -49.113 0.393 -2.108 -3.127 -21.859
Almeida et al. 2025 247.23 -49.105 – – – –
Hunt & Reffert 2024 247.248 -49.119 0.41 -2.121 -3.134 -14.131
Celli et al. 2024 247.236 -49.11 – – – –
Cavallo et al. 2024 247.26 -49.098 0.409 – – –
Hunt & Reffert 2023 247.248 -49.119 0.41 -2.121 -3.134 -14.131
Just et al. 2023 247.249 -49.097 – – – –
Dias et al. 2021 247.23 -49.105 0.368 -2.071 -3.12 –
Cantat-Gaudin et al. 2020 247.236 -49.11 0.369 -2.05 -3.125 –
Cantat-Gaudin & Anders 2020 247.236 -49.11 0.369 -2.05 -3.125 –
Bica et al. 2019 247.249 -49.104 – – – –
Cantat-Gaudin et al. 2018 247.236 -49.11 0.369 -2.05 -3.125 –
Kharchenko et al. 2016 247.249 -49.097 – – – –
Dias et al. 2014 247.238 -49.1 – -2.91 -5.07 –
Kharchenko et al. 2013 247.26 -49.097 – -3.52 -4.01 –
Dias et al. 2002 247.238 -49.1 – -2.91 -5.07 –

💡 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
Almeida et al. 2025 2.51 2.35 – 13 – 280 – –
Hunt & Reffert 2024 – – – – – 597* – –
Celli et al. 2024 – – – 19 – 333 – –
Cavallo et al. 2024 2.08 2.05 – 224 0.830 – – –
Hunt & Reffert 2023 2.26 2.58 2.08 34 – – – –
Just et al. 2023 – – – 1035 – 22 – –
Dias et al. 2021 2.51 2.35 – 13 0.098 – – –
Cantat-Gaudin et al. 2020 2.56 2.14 – 19 – – – –
Cantat-Gaudin & Anders 2020 2.51 – – – – – – –
Cantat-Gaudin et al. 2018 2.51 – – – – – – –
Kharchenko et al. 2016 0.90 1.29 – 1035 – – – –
Kharchenko et al. 2013 0.90 1.29 – 1035 – – – –
Dias et al. 2002 3.27 1.86 – 1259 – – – –

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

Visualization
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Hogg 19 UCC
Hogg 19 HUNT23
Hogg 19 CANTAT20
Galactocentric position diagram