CWNU 2554

0.20 UTI

0.76

C_N

0.26

C_dens

0.75

C_C3

0.06

C_lit

0.52

C_dup

N_m (P>50%) 117

Core radius and density 2.7 [pc], 1.3 [pc^-2]

C3 classification AB

C_N 0.76 Rich
C_dens 0.26 Loose
C_C3 0.75 High quality
C_lit 0.06 Rarely studied
C_dup 0.52 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 2554 is a rich, loose object of high 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 (see Parameters). It was recently reported in the literature.

Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.19 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.19 (50th percentile).

Data

🔍 Search references for CWNU 2554 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–	160.452	-58.384	0.322	-6.494	3.454	-10.001
Hunt & Reffert	2024	160.462	-58.374	0.318	-6.482	3.444	-13.318
Cavallo et al.	2024	160.472	-58.391	0.318	–	–	–
Hunt & Reffert	2023	160.462	-58.374	0.318	-6.482	3.444	-13.318
He et al.	2023	160.451	-58.373	0.327	-6.492	3.458	-13.17

💡 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–	2.81	1.59	2.52	119	0.410	637	–	–
Hunt & Reffert	2024	2.80	1.53	2.52	167	–	637⁽¹⁾	–	–
Cavallo et al.	2024	3.25	1.65	–	56	0.410	–	–	–
Hunt & Reffert	2023	2.80	1.53	2.52	167	–	–	–	–
He et al.	2023	2.82	2.00	–	71	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FoF 1487	47.9	160.5	-58.39	0.31	-6.53	3.41	4.27	0.31

💡 Note: The % column shows the percentage of members that CWNU 2554 shares with each listed object.

Visualization

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