NGC 2516

(Melotte 82; Collinder 172; MWSC 1393; OCL 776; ESO 124 06; FSR 1487; FoF 2378; OCSN 232)

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1.0 UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 3560
Stellar density (N50/rad) 151.8 [N/pc2]
C3 classification AA
  • CN 1.0 Very rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
NGC 2516 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a very close distance, below the mid-plane, affected by low 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 very well-studied in the literature.

Note: This object contains blue stragglers according to at least one source.

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

Malhotra et al. (2026)
Lowest/Highest stellar mass in the catalogue with a mass-ratio estimate: 0.25/3.55 Msun

Yan et al. (2026)
Number of WDs: expected from single-star evolution N=21, with probability of formation through binary evolution >=0.5 N=3.

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 285 along with UPK_540.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Richer et al. (2021)
The expected number of WDs is 34.6, 1 WD candidate found, and 6 WD candidates found in the wide search.

Rain et al. (2021)
This cluster was include in (Dias et al., 2002A&A...389..871D, Cat. B/ocl) however, parameters log(t)=8.40, Av=0.220, [Fe/H]=0.00 were taken from Bossini et al. (2019A&A...623A.108B, Cat. J/A+A/623/A108). Ahumada & Lapasset (2007A&A...463..789A, Cat. J/A+A/463/789) cite star DR2 5290767631226220032=HD 66194 -- Be Star as a blue straggler, the same star is include in our catalogue.

Ahumada & Lapasset (2007)
Adopted cluster centre: star d in (1955ApJ...121..628C). Star A = HD 66194 = V374 Carinae has a membership probability of 99% (1978, Sydney Obs.Pap., No.81), and a spectrum B2Vne/B3ne (1973A&AS....9..233F). This star is cited as a blue straggler in (1982A&A...109...37M) and (1983A&AS...53..419V), and is considered to be an analogue of the straggler Theta Carinae in IC 2602 by (1981ApJ...246..817E) and (1979PASP...91..442W). According to (2003A&A...404..365G), both components of this binary are main-sequence stars, and would experience mass transfer before abandoning this stage.

Data
🔍 Search references for NGC 2516 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– 119.499 -60.767 2.427 -4.641 11.207 23.177
Yan et al. 2026 119.521 -60.793 2.427 -4.634 11.226 –
Malhotra et al. 2026 119.502 -60.777 – – – –
Nizovkina et al. 2025 119.521 -60.793 – – – –
Li et al. 2025 119.527 -60.8 2.417 -4.748 11.221 –
Almeida et al. 2025 119.551 -60.785 – – – –
Alfonso et al. 2024 119.507 -60.771 2.402 -4.64 11.204 –
Hunt & Reffert 2024 119.522 -60.793 2.427 -4.634 11.226 23.066
Cavallo et al. 2024 119.536 -60.76 2.431 – – –
Hunt & Reffert 2023 119.522 -60.793 2.427 -4.634 11.226 23.066
Angelo et al. 2023 119.45 -60.836 – -4.64 11.22 –
Cordoni et al. 2023 119.551 -60.785 2.417 -4.704 11.221 –
Qin et al. 2023 119.47 -60.79 2.43 -4.64 11.24 23.23
Just et al. 2023 119.487 -60.748 – – – –
He et al. 2022 119.505 -60.797 2.43 -4.636 11.21 –
Tarricq et al. 2022 119.52 -60.78 2.427 -4.621 11.221 –
Jaehnig et al. 2021 119.509 -60.801 2.446 -4.707 11.17 –
Rain et al. 2021 119.527 -60.8 2.417 -4.748 11.221 –
Richer et al. 2021 119.51 -60.782 2.406 -4.661 11.127 –
Dias et al. 2021 119.551 -60.785 2.417 -4.704 11.221 24.429
Spina et al. 2021 119.518 -60.801 2.415 -4.685 11.201 –
Cantat-Gaudin et al. 2020 119.527 -60.8 2.417 -4.748 11.221 –
Cantat-Gaudin & Anders 2020 119.527 -60.8 2.417 -4.748 11.221 –
Liu & Pang 2019 119.526 -60.784 2.409 -4.661 11.17 –
Bossini et al. 2019 119.527 -60.8 – – – –
Soubiran et al. 2018 119.527 -60.8 – – – 23.82
Bica et al. 2019 119.54 -60.784 – – – –
Cantat-Gaudin et al. 2018 119.527 -60.8 2.417 -4.748 11.221 –
Loktin & Popova 2017 119.52 -60.753 – -1.89 9.103 21.2
Kharchenko et al. 2016 119.487 -60.748 – – – –
Dias et al. 2014 119.517 -60.753 – -5.46 8.62 –
Kharchenko et al. 2013 119.49 -60.75 – -3.5 10.2 21.2
Gozha et al. 2012 119.517 -60.753 – – – –
Bukowiecki et al. 2011 119.487 -60.768 – – – –
Piskunov et al. 2008 119.522 -60.746 – – – –
Kharchenko et al. 2007 119.52 -60.75 – 0.7 – 20.67
Piskunov et al. 2007 119.522 -60.746 – – – –
Ahumada & Lapasset 2007 119.525 -60.75 – – – –
van den Bergh 2006 119.525 -60.75 – – – –
Kharchenko et al. 2005 119.52 -60.75 – -4.13 10.15 18.53
Kharchenko et al. 2003 119.55 -60.81 – -3.65 8.15 –
Chen et al. 2003 119.518 -60.796 – -4.08 10.98 22.0
Dias et al. 2002 119.517 -60.753 – -5.43 8.41 23.08
Dambis 1999 119.517 -60.753 – – – –
Lynga 1987 119.586 -60.87 – – – 19.0
Sulentic et al. 1973 119.553 -60.869 – – – –

💡 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– 0.41 0.32 0.87 126 -0.008 251 0.25 1
Yan et al. 2026 – – – 239 – – – –
Malhotra et al. 2026 0.41 0.28 – 147 0.080 – – –
Liu et al. 2025 0.50 0.16 – 100 – – – –
Nizovkina et al. 2025 0.37(4) 0.40(4) – 286(4) -0.143(4) – – –
Li et al. 2025 0.39 0.48 – 85 -0.142 – – –
Almeida et al. 2025 0.41 0.45 – 277 – 1168 – –
Alfonso et al. 2024 0.42 0.12 – 675 0.005 – – –
Hunt & Reffert 2024 – – – – – 3547(1) – –
Cavallo et al. 2024 0.42 0.67 – 72 0.080 – – –
Hunt & Reffert 2023 0.39 0.20 0.87 125 – – – –
Angelo et al. 2023 0.38 0.38 – 158 0.050 3(1) – –
Cordoni et al. 2023 0.41 0.45 – 277 -0.008 2877 0.25 0(1)
Qin et al. 2023 0.46 0.28 – 224 – – – –
Just et al. 2023 – – – 299 – 151 – –
He et al. 2022 – 0.55 – 79 – – – –
Spina et al. 2022 – – – – -0.076 – – –
Tarricq et al. 2022 0.42 – – 234 – – – –
Jaehnig et al. 2021 0.41(1) – – – – – – –
Rain et al. 2021 0.41 0.32 – 112 – – – 1
Richer et al. 2021 – 0.22 – 200 – – – –
Dias et al. 2021 0.41 0.45 – 277 -0.008 – – –
Spina et al. 2021 0.41 – – 240 -0.079(20) – – –
Cantat-Gaudin et al. 2020 0.42 0.11 – 240 – – – –
Kounkel et al. 2020 0.42 0.42 – 170 – – – –
Cantat-Gaudin & Anders 2020 0.41 – – – – – – –
Liu & Pang 2019 – – – 93 0.250 – – –
Bossini et al. 2019 0.42 0.22 – 251 0.000 – – –
Soubiran et al. 2018 0.41 – – – – – – –
Cantat-Gaudin et al. 2018 0.41 – – – – – – –
Loktin & Popova 2017 0.42 0.31 – 125 – – – –
Kharchenko et al. 2016 0.37 0.22 – 299 – – – –
Kharchenko et al. 2013 0.37 0.22 – 299 -0.373 – – –
Bukowiecki et al. 2012 – – – – – 355 – –
Gozha et al. 2012 0.41 – – 113 -0.070 251 – –
Bukowiecki et al. 2011 0.41(1) 0.60 – 126 – – – –
Piskunov et al. 2008 0.35 0.22 – 120 – 234(1) – –
Piskunov et al. 2007 0.35 0.22 – 120 – 134 – –
Ahumada & Lapasset 2007 – 0.32 – 112 – – – 1
van den Bergh 2006 0.41 0.32 – 112 – – – –
Kharchenko et al. 2005 0.35 0.22 – 120 – – – –
Kharchenko et al. 2003 0.35 0.32 – – – – – –
Chen et al. 2003 0.41 0.32 – 110 0.060(1) – – –
Dias et al. 2002 0.41 0.32 – 113 0.060 – – –
Dambis 1999 0.37 0.35 – 126 – – – –
Lynga 1987 0.44 0.28 – 107 -0.230 – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Theia 613 0.5 119.58 -60.75 2.73 -5.14 10.89 25.56 0.05

💡 Note: The % column shows the percentage of members that NGC 2516 shares with each listed object.

Visualization
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NGC 2516 UCC
NGC 2516 HUNT23
NGC 2516 CANTAT20
Galactocentric position diagram