FSR 1418

(MWSC 1568)

0.15 UTI

0.57

C_N

0.39

C_dens

0.38

C_C3

0.26

C_lit

0.42

C_dup

N₅₀ (P>50% members) 65

Stellar density (N₅₀/rad) 1.9 [N/pc²]

C3 classification CB

C_N 0.57 Moderately populated
C_dens 0.39 Loose
C_C3 0.38 Low quality
C_lit 0.26 Poorly studied
C_dup 0.42 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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FSR 1418 is a moderately populated, loose object of low 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 age parameter (see Parameters). It is poorly studied in the literature.

⚠️ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.

(*): The parallax distance estimate (~2.22 kpc) differs significantly from the median photometric distance (~1.25 kpc).

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Liu et al. (2025)
Classified as primordial binary cluster 150 along with FSR_1424.

Palma et al. (2025)
Part of multiple system G91, along with OC_0480, UBC_1444 and FSR_1424.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for FSR 1418 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–	131.846	-43.932	0.451	-5.492	4.888	–
Hunt & Reffert	2024	131.853	-43.92	0.417	-5.491	4.892	–
Cavallo et al.	2024	131.898	-43.968	0.418	–	–	–
Hunt & Reffert	2023	131.853	-43.92	0.417	-5.491	4.892	–
Just et al.	2023	131.909	-43.996	–	–	–	–
Dib et al.	2018	131.914	-43.999	–	–	–	–
Joshi et al.	2016	131.914	-43.999	–	–	–	–
Kharchenko et al.	2016	131.909	-43.996	–	–	–	–
Kharchenko et al.	2013	131.914	-43.999	–	-6.67	6.4	20.0
Froebrich et al.	2007	131.933	-43.984	–	–	–	–

💡 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–	1.25	1.64	1.44	708	-0.040	127	–	–
Liu et al.	2025	5.57	0.91	–	40	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	193⁽¹⁾	–	–
Cavallo et al.	2024	2.36	2.99	–	269	-0.040	–	–	–
Hunt & Reffert	2023	2.24	2.77	1.44	117	–	–	–	–
Just et al.	2023	–	–	–	708	–	61	–	–
Dib et al.	2018	1.25	–	–	708	–	–	–	–
Joshi et al.	2016	1.25	1.64	–	708	–	–	–	–
Kharchenko et al.	2016	1.25	1.64	–	708	–	–	–	–
Kharchenko et al.	2013	1.25	1.64	–	708	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 2960	72.3	131.84	-43.92	0.45	-5.47	4.89	–	0.0
DBSB 27	58.5	131.7	-43.88	0.45	-5.46	4.89	37.67	0.38

💡 Note: The % column shows the percentage of members that FSR 1418 shares with each listed object.

Visualization

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