SAI 149

(MWSC 3748)

Click to load Aladin Lite
0.54 UTI
0.38
CN
0.61
Cdens
0.62
CC3
0.55
Clit
1.0
Cdup
Nm (P>50%) 38
Core radius and density 0.8 [pc], 3.1 [pc-2]
C3 classification CA
  • CN 0.38 Poorly populated
  • Cdens 0.61 Moderately dense
  • CC3 0.62 Intermediate quality
  • Clit 0.55 Moderately studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
SAI 149 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is moderately studied in the literature.

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.73 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.73 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.292, e_all=0.0975.

Data
πŸ” Search references for SAI 149 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 354.501 60.54 0.275 -3.838 -1.693 -67.916
Otto et al. 2026 354.512 60.541 – -3.9 -1.63 -68.3
Almeida et al. 2025 354.494 60.562 – – – –
Hunt & Reffert 2024 354.512 60.541 0.275 -3.809 -1.709 -67.935
Cavallo et al. 2024 354.525 60.545 0.272 – – –
Hunt & Reffert 2023 354.512 60.541 0.275 -3.809 -1.709 -67.935
Dias et al. 2021 354.494 60.562 0.306 -3.903 -1.593 -67.324
Cantat-Gaudin et al. 2020 354.506 60.541 0.304 -3.901 -1.633 –
SΓ‘nchez et al. 2020 354.508 60.549 – -3.837 -1.706 –
Cantat-Gaudin & Anders 2020 354.506 60.541 0.304 -3.901 -1.633 –
Soubiran et al. 2018 354.506 60.541 – – – -67.52
Bica et al. 2019 354.519 60.548 – – – –
Cantat-Gaudin et al. 2018 354.506 60.541 0.304 -3.901 -1.633 –
Dias et al. 2018 – – – -2.21 -1.64 –
Loktin & Popova 2017 354.51 60.549 – -1.397 -2.203 –
Sampedro et al. 2017 354.508 60.549 – -2.97 -0.78 –
Dias et al. 2014 354.508 60.549 – -1.57 -2.16 –
Glushkova et al. 2010 354.507 60.549 – – – –
Dias et al. 2002 354.508 60.549 – -1.57 -2.16 –

πŸ’‘ 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– 3.0 3.655 1.1 204 0.143 284 – –
Otto et al. 2026 – – – 282 -0.120(15) – – –
Almeida et al. 2025 2.55 3.22 – 296 – 272 – –
Hunt & Reffert 2024 3.43 4.11 1.10 86 – 296(1) – –
Cavallo et al. 2024 2.52 3.66 – 347 0.490 – – –
Hunt & Reffert 2023 3.43 4.12 1.10 86 – – – –
Dias et al. 2021 2.55 3.22 – 296 0.143 – – –
Cantat-Gaudin et al. 2020 3.42 2.92 – 282 – – – –
Kounkel et al. 2020 3.22 3.65 – 204 – – – –
Cantat-Gaudin & Anders 2020 3.00 – – – – – – –
Soubiran et al. 2018 3.00 – – – – – – –
Cantat-Gaudin et al. 2018 3.00 – – – – – – –
Loktin & Popova 2017 0.92 2.55 – 170 – – – –
Glushkova et al. 2010 2.37 4.07 – 158 – – – –
Dias et al. 2002 2.37 4.07 – 158 – – – –

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

Visualization
ℹ️
SAI 149 UCC
SAI 149 HUNT23
SAI 149 CANTAT20
Galactocentric position diagram