UBC 498

0.67 UTI

0.48

C_N

1.0

C_dens

1.0

C_C3

0.44

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 48

Radius (P>50% members) 3.0 [arcmin]

C_N 0.48 Poorly populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.44 Poorly studied
C_dup 1.0 Unique

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

Overview

ℹ️

UBC 498 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is poorly studied in the literature.

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

Relatively close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 498 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	155.092	-59.672	0.309	-6.039	2.871	19.959
Li et al.	2025	155.086	-59.657	0.295	-6.024	2.842	–
Hu & Soubiran	2025	155.09	-59.673	–	–	–	–
Hunt & Reffert	2024	155.116	-59.68	0.309	-6.042	2.888	19.964
Cavallo et al.	2024	155.09	-59.673	0.309	–	–	–
Hunt & Reffert	2023	155.116	-59.68	0.309	-6.042	2.888	19.964
Cantat-Gaudin et al.	2020	155.086	-59.657	0.295	-6.024	2.842	–
Castro-Ginard et al.	2020	155.059	-59.662	0.298	-6.03	2.862	–

💡 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
Li et al.	2025	2.89	1.18	–	124	0.057	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.230*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	398*	–	–
Cavallo et al.	2024	2.36	0.54	–	676	0.190	–	–	–
Hunt & Reffert	2023	2.95	1.16	2.02	102	–	–	–	–
Cantat-Gaudin et al.	2020	2.92	0.84	–	407	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0541	52.1	155.12	-59.68	0.31	-6.04	2.88	19.96	0.0

💡 Note: The % column shows the percentage of members that UBC 498 shares with each listed object.

Visualization

ℹ️

1 2 3