FoF 1355

(LP 1355)

0.16 UTI

0.0

C_N

0.57

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 22

Radius (P>50% members) 2.8 [arcmin]

C_N 0.0 Sparse
C_dens 0.57 Moderately dense
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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FoF 1355 is a sparse, moderately dense 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, very young cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Near-solar metallicity Very young

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

Data

🔍 Search references for FoF 1355 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	–	46.004	57.761	0.293	-0.3	-0.433	2.948
Almeida et al.	2025	46.023	57.774	–	–	–	–
He et al.	2023	46.026	57.758	0.278	-0.317	-0.46	–
Dias et al.	2021	46.023	57.774	0.323	-0.235	-0.381	-56.181

💡 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	2.73	2.74	–	10	–	711	–	–
He et al.	2023	2.95	3.35	–	32	–	–	–	–
Dias et al.	2021	2.73	2.74	–	10	-0.108	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 1129	56.0	46.0	57.77	0.31	-0.33	-0.51	–	0.19

💡 Note: The % column shows the percentage of members that FoF 1355 shares with each listed object.

Visualization

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