Collinder 351

(MWSC 2705)

0.74 UTI

0.78

C_N

1.0

C_dens

1.0

C_C3

0.45

C_lit

1.0

C_dup

N₅₀ (P>50% members) 193

Stellar density (N₅₀/rad) 28.2 [N/pc²]

C3 classification AA

C_N 0.78 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.45 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Collinder 351 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by moderate extinction. It is catalogued as a very metal-poor, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~2.25 kpc) differs significantly from the median photometric distance (~1.70 kpc).

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

Relatively close Moderate extinction Very metal-poor Intermediate age

Cavallo et al. (2024)
Bronze sample.

Data

🔍 Search references for Collinder 351 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–	267.422	-28.751	0.445	-0.578	-1.145	-40.062
Hunt & Reffert	2024	267.434	-28.754	0.439	-0.565	-1.136	-30.536
Cavallo et al.	2024	267.436	-28.748	0.438	–	–	–
Hunt & Reffert	2023	267.434	-28.754	0.439	-0.565	-1.136	-30.536
Just et al.	2023	267.251	-28.745	–	–	–	–
Kharchenko et al.	2016	267.251	-28.745	–	–	–	–
Dias et al.	2014	267.25	-28.736	–	0.73	-2.95	–
Kharchenko et al.	2013	267.259	-28.745	–	1.81	-1.52	–
Dias et al.	2002	267.25	-28.736	–	0.73	-2.95	–

💡 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	2.17	1.16	579	-1.190	796	–	–
Hunt & Reffert	2024	–	–	–	–	–	1507⁽¹⁾	–	–
Cavallo et al.	2024	3.55	2.16	–	27	-1.190	–	–	–
Hunt & Reffert	2023	2.10	1.85	1.16	107	–	–	–	–
Just et al.	2023	–	–	–	1000	–	86	–	–
Kharchenko et al.	2016	1.70	2.39	–	1000	–	–	–	–
Kharchenko et al.	2013	1.70	2.39	–	1000	–	–	–	–
Dias et al.	2002	1.31	2.17	–	158	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 91	67.4	267.43	-28.76	0.44	-0.58	-1.15	-42.61	0.01

💡 Note: The % column shows the percentage of members that Collinder 351 shares with each listed object.

Visualization

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