SAI 116

(MWSC 1978)

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0.96 UTI
0.8
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 239
Radius (P>50% members) 2.2 [arcmin]
  • CN 0.8 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
SAI 116 is a rich, very 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 massive, 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 shares a large percentage of members with 3 later reported entries. See table with shared members information.

Distant Moderate extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for SAI 116 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 177.322 -62.229 0.225 -7.735 1.352 -15.515
Almeida et al. 2025 177.348 -62.222 – – – –
Hunt & Reffert 2024 177.316 -62.226 0.23 -7.703 1.349 -15.597
Cavallo et al. 2024 177.341 -62.227 0.233 – – –
Hunt & Reffert 2023 177.316 -62.226 0.23 -7.703 1.349 -15.597
Just et al. 2023 177.315 -62.221 – – – –
Dias et al. 2021 177.348 -62.222 0.207 -7.755 1.348 -15.591
Cantat-Gaudin et al. 2020 177.324 -62.226 0.206 -7.729 1.339 –
SΓ‘nchez et al. 2020 177.325 -62.23 – -7.792 1.444 –
Donor et al. 2020 177.322 -62.225 – -7.74 1.28 -14.1
Cantat-Gaudin & Anders 2020 177.324 -62.226 0.206 -7.729 1.339 –
Soubiran et al. 2018 177.324 -62.226 – – – -15.48
Bica et al. 2019 177.315 -62.233 – – – –
Cantat-Gaudin et al. 2018 177.324 -62.226 0.206 -7.729 1.339 –
Kharchenko et al. 2016 177.315 -62.221 – – – –
Dias et al. 2014 177.325 -62.23 – -6.58 -1.14 –
Kharchenko et al. 2013 177.322 -62.225 – -7.9 -1.13 –
Glushkova et al. 2010 177.325 -62.23 – – – –
Dias et al. 2002 177.325 -62.23 – -6.58 -1.14 –

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] Bfr BSS
Almeida et al. 2025 3.23 2.46 – 516 – 1182 – –
Hunt & Reffert 2024 – – – – – 2238* – –
Cavallo et al. 2024 3.66 2.86 – 145 0.580 – – –
Hunt & Reffert 2023 3.86 2.90 2.59 62 – – – –
Just et al. 2023 – – – 484 – 48 – –
Dias et al. 2021 3.23 2.46 – 516 0.285 – – –
Cantat-Gaudin et al. 2020 4.13 2.14 – 126 – – – –
Donor et al. 2020 – – – – 0.160 – – –
Cantat-Gaudin & Anders 2020 4.26 – – – – – – –
Soubiran et al. 2018 4.26 – – – – – – –
Cantat-Gaudin et al. 2018 4.26 – – – – – – –
Kharchenko et al. 2016 2.38 3.03 – 484 – – – –
Kharchenko et al. 2013 2.38 3.03 – 484 – – – –
Glushkova et al. 2010 2.20 3.04 – 398 – – – –
Dias et al. 2002 2.20 3.04 – 398 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Teutsch 230 91.2 177.32 -62.23 0.23 -7.72 1.36 -15.47 0.03
VVV 006 20.1 177.31 -62.23 0.23 -7.74 1.32 -15.42 0.0
OC 0572 16.7 177.31 -62.23 0.23 -7.74 1.36 -15.42 0.0

πŸ’‘ Note: The % column shows the percentage of members that SAI 116 shares with each listed object.

Visualization
ℹ️
SAI 116 UCC
SAI 116 HUNT23
SAI 116 CANTAT20
Galactocentric position diagram