FSR 1253

(SAI 76; MWSC 1221)

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0.91 UTI
0.79
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 218
Radius (P>50% members) 3.9 [arcmin]
  • CN 0.79 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 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
FSR 1253 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age 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 small percentage of members with a later reported entry. See table with shared members information.

Distant Moderate extinction 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 FSR 1253 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 111.585 -18.438 0.238 -2.095 1.904 88.716
Almeida et al. 2025 111.589 -18.428 – – – –
Hunt & Reffert 2024 111.569 -18.437 0.238 -2.102 1.916 89.276
Cavallo et al. 2024 111.587 -18.429 0.236 – – –
Hunt & Reffert 2023 111.569 -18.437 0.238 -2.102 1.916 89.276
Almeida et al. 2023 111.593 -18.432 – – – –
Just et al. 2023 111.564 -18.443 – – – –
Dias et al. 2021 111.589 -18.428 0.22 -2.097 1.853 85.882
Cantat-Gaudin et al. 2020 111.583 -18.433 0.223 -2.089 1.878 –
SΓ‘nchez et al. 2020 111.571 -18.432 – -1.918 1.931 –
Cantat-Gaudin & Anders 2020 111.583 -18.433 0.223 -2.089 1.878 –
Soubiran et al. 2018 111.583 -18.433 – – – 92.26
Bica et al. 2019 111.572 -18.427 – – – –
Cantat-Gaudin et al. 2018 111.583 -18.433 0.223 -2.089 1.878 –
Kharchenko et al. 2016 111.564 -18.443 – – – –
Dias et al. 2014 111.571 -18.432 – -0.02 0.65 –
Kharchenko et al. 2013 111.57 -18.445 – -2.15 7.9 –
Glushkova et al. 2010 111.573 -18.432 – – – –
Froebrich et al. 2007 111.579 -18.435 – – – –
Dias et al. 2002 111.571 -18.432 – -0.02 0.65 –

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 3.83 2.15 – 270 – 965 – –
Hunt & Reffert 2024 – – – – – 1639* – –
Cavallo et al. 2024 3.98 2.15 – 257 0.200 – – –
Hunt & Reffert 2023 3.71 1.81 2.36 299 – – – –
Almeida et al. 2023 3.64 2.19 – 310 -0.183 968* 0.57 –
Just et al. 2023 – – – 437 – 330 – –
Dias et al. 2021 3.83 2.15 – 270 -0.084 – – –
Cantat-Gaudin et al. 2020 4.61 1.41 – 295 – – – –
Cantat-Gaudin & Anders 2020 3.97 – – – – – – –
Soubiran et al. 2018 3.97 – – – – – – –
Cantat-Gaudin et al. 2018 3.97 – – – – – – –
Kharchenko et al. 2016 2.28 2.00 – 437 – – – –
Kharchenko et al. 2013 2.28 2.00 – 437 – – – –
Glushkova et al. 2010 2.64 1.92 – 251 – – – –
Dias et al. 2002 2.64 1.92 – 251 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0397 11.5 111.59 -18.44 0.22 -2.12 1.93 88.39 0.0

πŸ’‘ Note: The % column shows the percentage of members that FSR 1253 shares with each listed object.

Visualization
ℹ️
FSR 1253 UCC
FSR 1253 HUNT23
FSR 1253 CANTAT20
Galactocentric position diagram