NGC 2547

(MWSC 1437; FoF 2395; OCSN 233)

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1.0 UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 541
Radius (P>50% members) 20.4 [arcmin]
  • 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 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
NGC 2547 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is very well-studied in the literature.
Very close Low extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for NGC 2547 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 122.502 -49.184 2.583 -8.545 4.344 11.441
Li et al. 2025 122.525 -49.198 2.553 -8.609 4.262 –
Wei et al. 2025 122.492 -49.179 2.585 -8.472 4.415 –
Almeida et al. 2025 122.484 -49.178 – – – –
Alfonso et al. 2024 122.503 -49.16 2.555 -8.561 4.342 –
Hunt & Reffert 2024 122.533 -49.195 2.574 -8.568 4.331 9.707
Cavallo et al. 2024 122.456 -49.133 2.58 – – –
Hunt & Reffert 2023 122.533 -49.195 2.574 -8.568 4.331 9.707
Almeida et al. 2023 122.489 -49.148 – – – –
Cordoni et al. 2023 122.484 -49.178 2.546 -8.597 4.24 –
Qin et al. 2023 122.53 -49.2 2.58 -8.58 4.34 11.94
Just et al. 2023 122.474 -49.203 – – – –
Jaehnig et al. 2021 122.538 -49.217 2.588 -8.559 4.314 –
Rain et al. 2021 122.525 -49.198 2.553 -8.609 4.262 –
Dias et al. 2021 122.484 -49.178 2.546 -8.597 4.24 13.694
Cantat-Gaudin et al. 2020 122.525 -49.198 2.553 -8.609 4.262 –
Cantat-Gaudin & Anders 2020 122.525 -49.198 2.553 -8.609 4.262 –
Liu & Pang 2019 122.451 -49.152 2.545 -8.592 4.261 –
Dias et al. 2019 122.537 -49.215 2.55 -8.611 4.257 12.139
Bossini et al. 2019 122.525 -49.198 – – – –
Soubiran et al. 2018 122.525 -49.198 – – – 14.07
Cantat-Gaudin et al. 2018 122.525 -49.198 2.553 -8.609 4.262 –
Loktin & Popova 2017 122.475 -49.214 – -9.343 5.618 14.8
Kharchenko et al. 2016 122.474 -49.203 – – – –
Dias et al. 2014 122.537 -49.215 – -2.39 4.44 –
Kharchenko et al. 2013 122.478 -49.205 – -8.37 4.4 14.8
Gozha et al. 2012 122.537 -49.215 – – – –
Piskunov et al. 2008 122.53 -49.212 – – – –
Kharchenko et al. 2007 122.53 -49.22 – 0.3 – 14.78
Piskunov et al. 2007 122.53 -49.212 – – – –
van den Bergh 2006 122.607 -49.167 – – – –
Kharchenko et al. 2005 122.53 -49.22 – -8.95 4.08 14.78
Kharchenko et al. 2003 122.58 -49.19 – -9.48 3.66 –
Chen et al. 2003 122.628 -49.248 – -9.56 4.42 14.5
Dias et al. 2002 122.537 -49.215 – -7.71 3.8 15.65
Dambis 1999 122.607 -49.167 – – – –

💡 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
Li et al. 2025 0.38 0.24 – 37 0.052 – – –
Wei et al. 2025 0.38 0.13 – 27 0.250 445 0.33 –
Almeida et al. 2025 0.39 0.29 – 39 – 266 – –
Alfonso et al. 2024 0.40 0.14 – 28 -0.013 – – –
Hunt & Reffert 2024 – – – – – 417* – –
Cavallo et al. 2024 0.40 0.59 – 15 -0.040 – – –
Hunt & Reffert 2023 0.38 0.12 0.57 22 – – – –
Almeida et al. 2023 0.38 0.35 – 36 -0.032 362* 0.23 –
Cordoni et al. 2023 0.39 0.29 – 39 -0.014 490 0.29 0.00
Qin et al. 2023 0.38 0.12 – 40 – – – –
Just et al. 2023 – – – 78 – 7 – –
Jaehnig et al. 2021 0.39* – – – – – – –
Rain et al. 2021 0.39 0.12 – 27 – – – 0
Dias et al. 2021 0.39 0.29 – 39 -0.014 – – –
Cantat-Gaudin et al. 2020 0.40 0.14 – 32 – – – –
Cantat-Gaudin & Anders 2020 0.39 – – – – – – –
Liu & Pang 2019 – – – 38 0.000 – – –
Dias et al. 2019 0.38 0.25 – 37 0.051 – – –
Bossini et al. 2019 0.39 0.12 – 27 0.000 – – –
Soubiran et al. 2018 0.39 – – – – – – –
Cantat-Gaudin et al. 2018 0.39 – – – – – – –
Loktin & Popova 2017 0.46 0.13 – 37 – – – –
Kharchenko et al. 2016 0.36 0.12 – 78 – – – –
Kharchenko et al. 2013 0.36 0.12 – 78 -0.160 – – –
Gozha et al. 2012 0.36 – – 38 -0.160 43 – –
Piskunov et al. 2008 0.46 0.12 – 50 – 58* – –
Piskunov et al. 2007 0.46 0.12 – 50 – 12 – –
van den Bergh 2006 0.46 0.12 – 36 – – – –
Kharchenko et al. 2005 0.46 0.12 – 50 – – – –
Kharchenko et al. 2003 0.43 0.12 – – – – – –
Chen et al. 2003 0.46 0.13 – 30 -0.160* – – –
Dias et al. 2002 0.36 0.58 – 38 -0.160 – – –
Dambis 1999 0.38 0.17 – 45 – – – –

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

Visualization
ℹī¸
NGC 2547 UCC
NGC 2547 HUNT23
NGC 2547 CANTAT20
Galactocentric position diagram