UBC 1583

0.37 UTI

0.6

C_N

0.37

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 69

Core radius and density 1.7 [pc], 1.8 [pc^-2]

C3 classification AB

C_N 0.6 Moderately populated
C_dens 0.37 Loose
C_C3 0.75 High quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

UBC 1583 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Young

Palma et al. (2025)
Classified as optical pair P612, along with Gulliver_2.

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.31 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.31 (50th percentile).

Data

🔍 Search references for UBC 1583 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	122.365	-38.805	0.714	-4.525	3.664	8.883
Hunt & Reffert	2024	122.344	-38.835	0.702	-4.474	3.631	8.984
Cavallo et al.	2024	122.391	-38.846	0.705	–	–	–
Hunt & Reffert	2023	122.344	-38.835	0.702	-4.474	3.631	8.984
Castro-Ginard et al.	2022	122.35	-38.84	0.74	-4.48	3.69	–

💡 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–	1.34	1.79	2.54	30	0.410	255	–	–
Hunt & Reffert	2024	1.34	1.79	2.54	33	–	255⁽¹⁾	–	–
Cavallo et al.	2024	1.51	1.89	–	27	0.410	–	–	–
Hunt & Reffert	2023	1.34	1.79	2.54	33	–	–	–	–
Castro-Ginard et al.	2022	1.33	1.36	–	21	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 198	39.1	122.34	-38.82	0.72	-4.51	3.68	7.91	0.0

💡 Note: The % column shows the percentage of members that UBC 1583 shares with each listed object.

Visualization

ℹ️

1 2