FSR 0686

Click to load Aladin Lite
0.65 UTI
0.77
CN
0.77
Cdens
0.75
CC3
0.48
Clit
1.0
Cdup
Nm (P>50%) 152
Core radius and density 1.7 [pc], 3.8 [pc-2]
C3 classification AB
  • CN 0.77 Rich
  • Cdens 0.77 Dense
  • CC3 0.75 High quality
  • Clit 0.48 Poorly studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
FSR 0686 is a rich, dense object of high C3 quality. Its parallax locates it at a close 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 poorly studied in the literature.

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

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Piecka & Paunzen (2021)
Belongs to cluster aggregate 'Agg32' along with UBC 55.

Data
🔍 Search references for FSR 0686 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 66.37 46.13 1.095 -1.085 -2.613 -13.09
Li et al. 2025 66.353 46.098 1.087 -1.088 -2.556 –
Almeida et al. 2025 66.353 46.098 – – – –
Zhang et al. 2024 66.397 46.131 – – – –
Hunt & Reffert 2024 66.397 46.131 1.105 -1.104 -2.607 -14.871
Cavallo et al. 2024 66.347 46.133 1.116 – – –
Hunt & Reffert 2023 66.397 46.131 1.105 -1.104 -2.607 -14.871
He et al. 2022 66.373 46.129 1.105 -1.073 -2.607 –
Dias et al. 2021 66.353 46.098 1.09 -1.095 -2.566 –
Cantat-Gaudin et al. 2020 66.353 46.098 1.087 -1.088 -2.556 –
Zhong et al. 2020 66.353 46.098 – -1.088 -2.556 -12.708
Cantat-Gaudin & Anders 2020 66.353 46.098 1.087 -1.088 -2.556 –
Cantat-Gaudin et al. 2018 66.353 46.098 1.087 -1.088 -2.556 –
Dib et al. 2018 66.465 46.095 – – – –
Joshi et al. 2016 66.465 46.095 – – – –
Froebrich et al. 2007 66.463 46.098 – – – –
Dias et al. 2002 66.463 46.098 – -1.64 -5.37 –

💡 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– 0.9 1.52 1.85 21 -0.151 195 – –
Li et al. 2025 0.78 1.68 – 19 -0.239 – – –
Almeida et al. 2025 0.89 1.72 – 21 – 117 – –
Zhang et al. 2024 – – – – -0.151(1) – – –
Hunt & Reffert 2024 0.86 1.43 1.85 17 – 273(1) – –
Cavallo et al. 2024 0.96 1.60 – 11 0.070 – – –
Hunt & Reffert 2023 0.86 1.43 1.85 17 – – – –
He et al. 2022 – 1.40 – 14 – – – –
Dias et al. 2021 0.89 1.72 – 21 -0.024 – – –
Kounkel et al. 2020 0.90 1.36 – 26 – – – –
Zhong et al. 2020 0.90(1) – – – -0.153 – – –
Cantat-Gaudin & Anders 2020 0.90 – – – – – – –
Cantat-Gaudin et al. 2018 0.90 – – – – – – –
Dib et al. 2018 1.07 – – 32 – – – –
Joshi et al. 2016 1.07 1.44 – 32 – – – –
Dias et al. 2002 1.64 3.22 – 407 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 55 55.9 66.35 46.12 1.1 -1.07 -2.61 -11.57 0.0

💡 Note: The % column shows the percentage of members that FSR 0686 shares with each listed object.

Visualization
ℹī¸
FSR 0686 UCC
FSR 0686 HUNT23
FSR 0686 CANTAT20
Galactocentric position diagram