NGC 1579

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0.69 UTI
0.82
CN
1.0
Cdens
0.75
CC3
0.45
Clit
1.0
Cdup
Nm (P>50%) 285
Core radius and density 0.6 [pc], 65 [pc-2]
C3 classification AB
  • CN 0.82 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.45 Poorly studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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NGC 1579 is a rich, very dense object of high C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

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

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

Cavallo et al. (2024)
Wood sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.05 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.05 (50th percentile).

Bica et al. (2019)
2MASS website.

Bica et al. (2003)
Classified as infrared cluster (IRC).

Data
🔍 Search references for NGC 1579 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– 67.533 35.298 1.823 2.497 -5.021 6.345
Almeida et al. 2025 67.493 35.366 – – – –
Zhang et al. 2024 67.523 35.282 – – – –
Hunt & Reffert 2024 67.523 35.282 1.879 2.422 -5.159 9.373
Celli et al. 2024 67.514 35.325 – – – –
Cavallo et al. 2024 67.448 35.372 1.877 – – –
Hunt & Reffert 2023 67.523 35.282 1.879 2.422 -5.159 9.373
He et al. 2022 67.519 35.285 1.849 2.443 -5.097 –
Dias et al. 2021 67.493 35.366 1.765 2.473 -4.976 –
Cantat-Gaudin et al. 2020 67.514 35.325 1.81 2.477 -4.945 –
Zhong et al. 2020 67.514 35.325 – 2.477 -4.945 -12.137
Cantat-Gaudin & Anders 2020 67.514 35.325 1.81 2.477 -4.945 –
Cantat-Gaudin et al. 2018 67.514 35.325 1.81 2.477 -4.945 –
Dib et al. 2018 67.546 35.279 – – – –
Joshi et al. 2016 67.546 35.279 – – – –
Bica et al. 2003 67.543 35.283 – – – –

💡 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– 0.56 3.73 2.85 8 0.143 235 – –
Almeida et al. 2025 0.56 3.73 – 8 – 226 – –
Zhang et al. 2024 – – – – 0.212(1) – – –
Hunt & Reffert 2024 0.51 3.65 2.85 19 – 272(1) – –
Celli et al. 2024 – – – 4 – 235 – –
Cavallo et al. 2024 0.81 3.41 – 10 -0.060 – – –
Hunt & Reffert 2023 0.51 3.65 2.85 19 – – – –
He et al. 2022 – 3.90 – 2 – – – –
Dias et al. 2021 0.56 3.73 – 8 0.190 – – –
Kounkel et al. 2020 0.63 5.14 – 7 – – – –
Zhong et al. 2020 0.54(1) – – – 0.096 – – –
Cantat-Gaudin & Anders 2020 0.54 – – – – – – –
Cantat-Gaudin et al. 2018 0.54 – – – – – – –
Dib et al. 2018 0.73 – – 4 – – – –
Joshi et al. 2016 0.73 9.32 – 4 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
LKHalpha 101 50.5 67.53 35.28 1.88 2.64 -4.96 4.06 0.01

💡 Note: The % column shows the percentage of members that NGC 1579 shares with each listed object.

Visualization
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NGC 1579 UCC
NGC 1579 HUNT23
NGC 1579 CANTAT20
Galactocentric position diagram