FSR 0728

(MWSC 384)

0.80 UTI

0.75

C_N

1.0

C_dens

0.75

C_C3

0.75

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 109

Radius (P>50% members) 3.9 [arcmin]

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.75 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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FSR 0728 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, below 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 age and metallicity parameters (see Parameters). It is well-studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for FSR 0728 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	–	67.458	38.493	0.558	1.916	-2.269	19.97
Li et al.	2025	67.458	38.496	0.543	1.991	-2.224	–
Almeida et al.	2025	67.459	38.492	–	–	–	–
Zhang et al.	2024	67.462	38.498	–	–	–	–
Hunt & Reffert	2024	67.462	38.498	0.548	1.92	-2.273	24.889
Cavallo et al.	2024	67.45	38.476	0.55	–	–	–
Hunt & Reffert	2023	67.462	38.498	0.548	1.92	-2.273	24.889
Almeida et al.	2023	67.468	38.489	–	–	–	–
Dias et al.	2021	67.459	38.492	0.533	1.968	-2.237	–
Cantat-Gaudin et al.	2020	67.458	38.496	0.543	1.991	-2.224	–
Cantat-Gaudin & Anders	2020	67.458	38.496	0.543	1.991	-2.224	–
Bica et al.	2019	67.456	38.488	–	–	–	–
Cantat-Gaudin et al.	2018	67.458	38.496	0.543	1.991	-2.224	–
Froebrich et al.	2007	67.454	38.485	–	–	–	–

💡 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
Li et al.	2025	1.57	1.98	–	399	0.007	–	–	–
Almeida et al.	2025	1.58	2.29	–	136	–	325	–	–
Zhang et al.	2024	–	–	–	–	-0.193*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	646*	–	–
Cavallo et al.	2024	1.76	2.15	–	257	0.270	–	–	–
Hunt & Reffert	2023	1.70	1.95	2.50	385	–	–	–	–
Almeida et al.	2023	1.53	2.14	–	115	-0.040	321*	0.63	–
Dias et al.	2021	1.58	2.29	–	136	-0.087	–	–	–
Cantat-Gaudin et al.	2020	1.88	1.76	–	162	–	–	–	–
Cantat-Gaudin & Anders	2020	1.75	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.75	–	–	–	–	–	–	–

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

Visualization

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