FSR 0494

(SAI 5; MWSC 42)

Click to load Aladin Lite
0.90 UTI
0.76
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 125
Radius (P>50% members) 2.1 [arcmin]
  • CN 0.76 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 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
ℹī¸
FSR 0494 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate 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 age and metallicity parameters (see Parameters). It is very well-studied in the literature.

Note: This object shares a moderate percentage of members with 2 later reported entries. See table with shared members information.

Distant Moderate extinction Massive Near-solar metallicity Old

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for FSR 0494 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 6.408 63.757 0.222 -2.5 -0.917 -65.747
Hu & Soubiran 2025 6.419 63.752 – – – –
Almeida et al. 2025 6.431 63.751 – – – –
Hunt & Reffert 2024 6.396 63.756 0.223 -2.509 -0.906 -65.266
Cavallo et al. 2024 6.419 63.752 0.224 – – –
Hunt & Reffert 2023 6.396 63.756 0.223 -2.509 -0.906 -65.266
Just et al. 2023 6.411 63.747 – – – –
Dias et al. 2021 6.431 63.751 0.196 -2.512 -0.832 –
Cantat-Gaudin et al. 2020 6.416 63.754 0.225 -2.503 -0.844 –
Donor et al. 2020 6.42 63.75 – -2.52 -0.86 -64.0
Cantat-Gaudin & Anders 2020 6.416 63.754 0.225 -2.503 -0.844 –
Cantat-Gaudin et al. 2019 6.416 63.754 0.23 -2.5 -0.85 –
Kharchenko et al. 2016 6.411 63.747 – – – –
Dias et al. 2014 6.383 63.758 – -1.76 -0.68 –
Kharchenko et al. 2013 6.42 63.75 – -2.97 -2.66 –
Kharchenko et al. 2012 6.42 63.75 – -2.87 -2.72 –
Glushkova et al. 2010 6.407 63.761 – – – –
Froebrich et al. 2007 6.383 63.758 – – – –
Dias et al. 2002 6.383 63.758 – -2.87 -2.72 –

💡 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
Hu & Soubiran 2025 – – – – -0.150* – – –
Almeida et al. 2025 3.47 2.83 – 741 – 665 – –
Hunt & Reffert 2024 – – – – – 1589* – –
Cavallo et al. 2024 3.55 2.82 – 661 0.290 – – –
Hunt & Reffert 2023 4.06 2.94 2.08 279 – – – –
Just et al. 2023 – – – 1995 – 2104 – –
Dias et al. 2021 3.47 2.83 – 741 -0.065 – – –
Cantat-Gaudin et al. 2020 4.07 2.20 – 891 – – – –
Donor et al. 2020 – – – – -0.010 – – –
Cantat-Gaudin & Anders 2020 3.94 – – – – – – –
Cantat-Gaudin et al. 2019 3.94 – – – – – – –
Kharchenko et al. 2016 5.09 1.62 – 1995 – – – –
Kharchenko et al. 2013 5.09 1.62 – 1995 – – – –
Kharchenko et al. 2012 5.09 1.62 – 1995 – – – –
Glushkova et al. 2010 3.50 1.86 – 1259 – – – –
Dias et al. 2002 5.09 1.62 – 1995 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0226 25.6 6.4 63.76 0.2 -2.48 -0.92 -65.93 0.0
CWWDL 10464 2.4 6.41 63.53 0.26 -2.67 -0.55 -77.31 0.07

💡 Note: The % column shows the percentage of members that FSR 0494 shares with each listed object.

Visualization
ℹī¸
FSR 0494 UCC
FSR 0494 HUNT23
FSR 0494 CANTAT20
Galactocentric position diagram