UBC 554

0.65 UTI

0.61

C_N

1.0

C_dens

1.0

C_C3

0.31

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 72

Radius (P>50% members) 5.0 [arcmin]

C_N 0.61 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

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

Overview

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UBC 554 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, young cluster (see Parameters). It is poorly studied in the literature.

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

Relatively close Moderate extinction Metal-rich Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 554 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	–	256.143	-41.663	0.573	-0.599	-0.917	-31.326
Hunt & Reffert	2024	256.141	-41.663	0.582	-0.588	-0.913	–
Cavallo et al.	2024	256.137	-41.663	0.582	–	–	–
Hunt & Reffert	2023	256.141	-41.663	0.582	-0.588	-0.913	–
Cantat-Gaudin et al.	2020	256.116	-41.67	0.527	-0.594	-0.899	–
Castro-Ginard et al.	2020	256.119	-41.683	0.541	-0.572	-0.882	–

💡 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
Hunt & Reffert	2024	–	–	–	–	–	567*	–	–
Cavallo et al.	2024	1.92	2.75	–	98	0.620	–	–	–
Hunt & Reffert	2023	1.60	2.74	1.82	49	–	–	–	–
Cantat-Gaudin et al.	2020	1.80	2.17	–	60	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 7566	88.9	256.14	-41.67	0.58	-0.59	-0.92	–	0.04

💡 Note: The % column shows the percentage of members that UBC 554 shares with each listed object.

Visualization

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