NGC 7281

(MWSC 3624)

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0.86 UTI
0.56
CN
0.73
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 63
Radius (P>50% members) 6.1 [arcmin]
  • CN 0.56 Moderately populated
  • Cdens 0.73 Moderately 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
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NGC 7281 is a moderately populated, moderately dense object of very 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, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.
Relatively close Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for NGC 7281 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 – 336.274 57.895 0.427 -2.083 -1.276 -26.713
Li et al. 2025 336.259 57.869 0.432 -2.123 -1.238 –
Almeida et al. 2025 336.279 57.871 – – – –
Hunt & Reffert 2024 336.261 57.834 0.419 -2.076 -1.305 -26.703
Cavallo et al. 2024 336.442 57.953 0.422 – – –
Hunt & Reffert 2023 336.261 57.834 0.419 -2.076 -1.305 -26.703
Just et al. 2023 336.26 57.817 – – – –
Dias et al. 2021 336.279 57.871 0.438 -2.122 -1.227 –
Cantat-Gaudin et al. 2020 336.259 57.869 0.432 -2.123 -1.238 –
Cantat-Gaudin & Anders 2020 336.259 57.869 0.432 -2.123 -1.238 –
Bossini et al. 2019 336.259 57.869 – – – –
Cantat-Gaudin et al. 2018 336.259 57.869 0.432 -2.123 -1.238 –
Loktin & Popova 2017 336.255 57.817 – -1.347 -0.571 –
Kharchenko et al. 2016 336.26 57.817 – – – –
Dias et al. 2014 336.325 57.817 – -2.13 -3.19 –
Kharchenko et al. 2013 336.265 57.82 – -1.56 -2.44 –
Kharchenko et al. 2012 336.265 57.82 – -1.56 -2.44 –
Piskunov et al. 2008 336.315 57.815 – – – –
Piskunov et al. 2007 336.315 57.815 – – – –
Kharchenko et al. 2005 336.33 57.82 – -0.46 -2.41 –
Kharchenko et al. 2003 336.28 57.84 – 1.29 -4.39 –

💡 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 1.98 1.65 – 22 -0.045 – – –
Almeida et al. 2025 2.01 1.71 – 27 – 238 – –
Hunt & Reffert 2024 – – – – – 515* – –
Cavallo et al. 2024 2.47 1.67 – 78 0.520 – – –
Hunt & Reffert 2023 2.20 1.60 1.16 68 – – – –
Just et al. 2023 – – – 72 – 131 – –
Dias et al. 2021 2.01 1.71 – 27 0.064 – – –
Cantat-Gaudin et al. 2020 2.25 1.44 – 35 – – – –
Cantat-Gaudin & Anders 2020 2.17 – – – – – – –
Bossini et al. 2019 2.38 1.51 – 30 0.000 – – –
Cantat-Gaudin et al. 2018 2.17 – – – – – – –
Loktin & Popova 2017 3.01 0.94 – 158 – – – –
Kharchenko et al. 2016 1.60 1.55 – 72 – – – –
Kharchenko et al. 2013 1.60 1.55 – 72 – – – –
Kharchenko et al. 2012 1.60 1.55 – 72 – – – –
Piskunov et al. 2008 1.62 1.55 – 72 – 312* – –
Piskunov et al. 2007 1.62 1.55 – 72 – 40 – –
Kharchenko et al. 2005 1.62 1.55 – 72 – – – –
Kharchenko et al. 2003 0.83 1.24 – – – – – –

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

Visualization
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NGC 7281 UCC
NGC 7281 HUNT23
NGC 7281 CANTAT20
Galactocentric position diagram