FSR 0278

(Teutsch J2031.0+5102; MWSC 3355; FoF 2199)

0.89 UTI

0.76

C_N

1.0

C_dens

1.0

C_C3

0.84

C_lit

1.0

C_dup

N₅₀ (P>50% members) 130

Stellar density (N₅₀/rad) 16.2 [N/pc²]

C3 classification AA

C_N 0.76 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.84 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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FSR 0278 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is well-studied in the literature.

Relatively close Low extinction Near-solar metallicity Old

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for FSR 0278 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	307.754	51.02	0.575	-4.599	-9.759	-9.206
Li et al.	2025	307.761	51.021	0.554	-4.615	-9.738	–
Hu & Soubiran	2025	307.754	51.016	–	–	–	–
Almeida et al.	2025	307.761	51.023	–	–	–	–
Zhang et al.	2024	307.762	51.017	–	–	–	–
Hunt & Reffert	2024	307.762	51.017	0.578	-4.602	-9.737	-13.142
Cavallo et al.	2024	307.754	51.016	0.578	–	–	–
Hunt & Reffert	2023	307.762	51.017	0.578	-4.602	-9.737	-13.142
Almeida et al.	2023	307.768	51.025	–	–	–	–
Dias et al.	2021	307.761	51.023	0.556	-4.597	-9.738	-6.942
Cantat-Gaudin et al.	2020	307.761	51.021	0.554	-4.615	-9.738	–
Cantat-Gaudin & Anders	2020	307.761	51.021	0.554	-4.615	-9.738	–
Liu & Pang	2019	307.742	51.002	0.574	-4.64	-9.747	–
Soubiran et al.	2018	307.761	51.021	–	–	–	-7.94
Bica et al.	2019	307.767	51.044	–	–	–	–
Cantat-Gaudin et al.	2018	307.761	51.021	0.554	-4.615	-9.738	–
Froebrich et al.	2007	307.738	51.035	–	–	–	–

💡 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]	B_frac	BSS
UCC	99999–	1.7	0.86	1.61	2290	-0.017	356	0.78	–
Li et al.	2025	1.69	0.86	–	2391	-0.037	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.090⁽⁵⁾	–	–	–
Almeida et al.	2025	1.60	1.03	–	2466	–	210	–	–
Zhang et al.	2024	–	–	–	–	0.053⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	356⁽¹⁾	–	–
Cavallo et al.	2024	1.72	0.78	–	1738	0.290	–	–	–
Hunt & Reffert	2023	1.67	1.06	1.61	767	–	–	–	–
Almeida et al.	2023	1.67	0.86	–	2529	-0.017	542⁽¹⁾	0.78	–
Dias et al.	2021	1.60	1.03	–	2466	-0.125	–	–	–
Cantat-Gaudin et al.	2020	1.71	0.85	–	2188	–	–	–	–
Cantat-Gaudin & Anders	2020	1.71	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	1100	0.500	–	–	–
Soubiran et al.	2018	1.71	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.71	–	–	–	–	–	–	–

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

Visualization

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