Melotte 244

(Collinder 457; NGC 7762; MWSC 3784; OCL 280; FSR 0468; FoF 2195)

Click to load Aladin Lite
1.0 UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 798
Stellar density (N50/rad) 78.5 [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¸
Melotte 244 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is very well-studied in the literature.

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

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

Data
🔍 Search references for Melotte 244 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 357.452 68.038 1.031 1.482 3.975 -44.727
Li et al. 2025 357.472 68.035 1.002 1.452 4.016 –
Almeida et al. 2025 357.439 68.039 – – – –
Alfonso et al. 2024 -2.528 68.038 1.003 1.482 3.987 –
Almeida et al. 2023 357.399 68.046 – – – –
Just et al. 2023 357.456 68.021 – – – –
He et al. 2022 357.465 68.036 1.034 1.478 3.98 –
Tarricq et al. 2022 357.509 68.044 1.032 1.488 3.972 –
Dias et al. 2021 357.439 68.039 0.998 1.461 4.006 -45.438
Cantat-Gaudin et al. 2020 357.472 68.035 1.002 1.452 4.016 –
Cantat-Gaudin & Anders 2020 357.472 68.035 1.002 1.452 4.016 –
Liu & Pang 2019 357.429 68.05 0.995 1.478 4.002 –
Soubiran et al. 2018 357.472 68.035 – – – -45.4
Bica et al. 2019 357.476 68.046 – – – –
Cantat-Gaudin et al. 2018 357.472 68.035 1.002 1.452 4.016 –
Loktin & Popova 2017 359.985 68.034 – 3.44 -2.21 –
Kharchenko et al. 2016 357.456 68.021 – – – –
Kharchenko et al. 2013 357.465 68.025 – -2.88 0.0 –
Kharchenko et al. 2012 357.465 68.025 – -2.98 0.02 –
van den Bergh 2006 357.45 68.033 – – – –
Dias et al. 2002 359.983 68.034 – 3.44 -2.21 –

💡 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– 0.89 2.2 – 2018 -0.058 1394 0.66 –
Li et al. 2025 0.88 2.62 – 2111 -0.453 – – –
Almeida et al. 2025 0.96 2.60 – 1117 – 1577 – –
Alfonso et al. 2024 0.92 1.90 – 1930 -0.058 – – –
Almeida et al. 2023 0.93 2.54 – 1607 -0.052 1394(1) 0.66 –
Just et al. 2023 – – – 2089 – 37 – –
He et al. 2022 – 2.60 – 1413 – – – –
Tarricq et al. 2022 0.87 – – 2042 – – – –
Dias et al. 2021 0.96 2.60 – 1117 -0.056 – – –
Cantat-Gaudin et al. 2020 0.90 1.91 – 2042 – – – –
Cantat-Gaudin & Anders 2020 0.97 – – – – – – –
Liu & Pang 2019 – – – 2630 -0.250 – – –
Soubiran et al. 2018 0.97 – – – – – – –
Cantat-Gaudin et al. 2018 0.97 – – – – – – –
Loktin & Popova 2017 0.74 2.20 – 266 – – – –
Kharchenko et al. 2016 0.78 1.71 – 2089 – – – –
Kharchenko et al. 2013 0.78 1.71 – 2089 – – – –
Kharchenko et al. 2012 0.78 1.71 – 2084 – – – –
van den Bergh 2006 0.74 2.20 – 263 – – – –
Dias et al. 2002 0.78 2.05 – 1995 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
PTB 9 98.5 357.45 68.04 1.03 1.48 3.98 -44.72 0.01

💡 Note: The % column shows the percentage of members that Melotte 244 shares with each listed object.

Visualization
ℹī¸
Melotte 244 UCC
Melotte 244 CANTAT20
Galactocentric position diagram