NGC 3324

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0.85 UTI
0.78
CN
1.0
Cdens
0.75
CC3
0.87
Clit
1.0
Cdup
Nm (P>50%) 180
Core radius and density 1.3 [pc], 8.6 [pc-2]
C3 classification AB
  • CN 0.78 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.87 Well-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 3324 is a rich, 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, very young cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is well-studied in the literature.

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

Liu et al. (2025)
Classified as primordial binary cluster 225 along with HSC_2342, and of multiple system 64 along with IC_2581 and HSC_2342.

Palma et al. (2025)
Part of multiple system G151, along with HSC_2358, HSC_2342 and IC_2581.

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

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.2022, e_all=0.1851.

Ahumada & Lapasset (2007)
The dereddened colour-magnitude diagram in (1977A&AS...27..145C) was examined. The apparent cluster diameter is also from (1977A&AS...27..145C).

Data
🔍 Search references for NGC 3324 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– 159.333 -58.623 0.373 -7.082 2.798 -21.009
Liu et al. 2025 159.33 -58.62 0.38 -7.1 2.8 111.46
Almeida et al. 2025 159.372 -58.625 – – – –
Hunt & Reffert 2024 159.325 -58.624 0.379 -7.096 2.804 111.458
Celli et al. 2024 159.341 -58.615 – – – –
Cavallo et al. 2024 159.33 -58.63 0.381 – – –
Hunt & Reffert 2023 159.325 -58.624 0.379 -7.096 2.804 111.458
Jaehnig et al. 2021 159.341 -58.632 0.398 -7.21 3.067 –
Rain et al. 2021 159.341 -58.615 0.356 -7.112 2.782 –
Dias et al. 2021 159.372 -58.625 0.351 -7.128 2.767 –
Cantat-Gaudin et al. 2020 159.341 -58.615 0.356 -7.112 2.782 –
Cantat-Gaudin & Anders 2020 159.341 -58.615 0.356 -7.112 2.782 –
Cantat-Gaudin et al. 2018 159.341 -58.615 0.356 -7.112 2.782 –
Dias et al. 2018 – – – -7.59 2.92 –
Loktin & Popova 2017 159.33 -58.641 – -7.46 3.11 -7.7
Sampedro et al. 2017 159.333 -58.642 – -4.22 -0.95 –
Dias et al. 2014 159.333 -58.642 – -5.44 -1.31 –
Gozha et al. 2012 159.333 -58.642 – – – –
Bukowiecki et al. 2011 159.312 -58.621 – – – –
Piskunov et al. 2008 159.318 -58.639 – – – –
Kharchenko et al. 2007 159.33 -58.64 – 0.16 – -8.5
Ahumada & Lapasset 2007 159.325 -58.65 – – – –
van den Bergh 2006 159.325 -58.633 – – – –
Kharchenko et al. 2005 159.33 -58.64 – -7.81 3.77 -8.5
Kharchenko et al. 2003 159.31 -58.62 – -12.2 5.07 –
Dias et al. 2002 159.333 -58.642 – -7.46 3.11 -8.5
Dambis 1999 159.333 -58.642 – – – –
Lynga 1987 159.337 -58.622 – – – -12.0

💡 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– 2.42 1.45 1.69 6 -0.040 444 – 0
Liu et al. 2025 2.49 0.55 – 8 – – – –
Almeida et al. 2025 2.49 1.64 – 6 – 416 – –
Hunt & Reffert 2024 2.40 1.90 1.69 6 – 383(1) – –
Celli et al. 2024 – – – 11 – 444 – –
Cavallo et al. 2024 2.04 1.30 – 8 -0.040 – – –
Hunt & Reffert 2023 2.40 1.90 1.69 6 – – – –
Jaehnig et al. 2021 2.52(1) – – – – – – –
Rain et al. 2021 2.60 1.36 – 6 – – – 0
Dias et al. 2021 2.49 1.64 – 6 0.294 – – –
Cantat-Gaudin et al. 2020 2.39 1.19 – 11 – – – –
Kounkel et al. 2020 2.62 2.28 – 2 – – – –
Cantat-Gaudin & Anders 2020 2.60 – – – – – – –
Cantat-Gaudin et al. 2018 2.60 – – – – – – –
Loktin & Popova 2017 2.30 1.45 – 6 – – – –
Bukowiecki et al. 2012 – – – – – 1306 – –
Gozha et al. 2012 2.32 – – 6 – 2692 – –
Bukowiecki et al. 2011 2.44(1) 1.58 – 10 – – – –
Piskunov et al. 2008 2.30 1.45 – 5 – – – –
Ahumada & Lapasset 2007 – 1.39 – 6 – – – 0
van den Bergh 2006 2.32 1.39 – 6 – – – –
Kharchenko et al. 2005 2.30 1.45 – 5 – – – –
Kharchenko et al. 2003 2.33 1.39 – – – – – –
Dias et al. 2002 2.32 1.38 – 6 -0.474 – – –
Dambis 1999 2.55 1.48 – 3 – – – –
Lynga 1987 3.30 1.36 – 2 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
DBSB 128 28.9 159.36 -58.67 0.38 -7.02 2.76 -49.58 0.09

💡 Note: The % column shows the percentage of members that NGC 3324 shares with each listed object.

Visualization
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NGC 3324 UCC
NGC 3324 HUNT23
NGC 3324 CANTAT20
Galactocentric position diagram