UBC 383

0.60 UTI

0.59

C_N

0.81

C_dens

0.75

C_C3

0.44

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 68

Radius (P>50% members) 7.7 [arcmin]

C_N 0.59 Moderately populated
C_dens 0.81 Dense
C_C3 0.75 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

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UBC 383 is a moderately populated, dense object of high C3 quality. Its parallax locates it at a relatively close 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 moderate 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 383 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	–	330.689	49.115	0.545	-2.026	-1.734	-35.35
Li et al.	2025	330.72	49.114	0.541	-2.04	-1.711	–
Zhang et al.	2024	330.644	49.118	–	–	–	–
Hunt & Reffert	2024	330.644	49.118	0.545	-2.053	-1.77	-32.474
Cavallo et al.	2024	330.691	49.112	0.548	–	–	–
Hunt & Reffert	2023	330.644	49.118	0.545	-2.053	-1.77	-32.474
Cantat-Gaudin et al.	2020	330.72	49.114	0.541	-2.04	-1.711	–
Castro-Ginard et al.	2020	330.72	49.104	0.542	-2.033	-1.722	–

💡 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	1.73	0.66	–	315	0.028	–	–	–
Zhang et al.	2024	–	–	–	–	0.268*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	314*	–	–
Cavallo et al.	2024	1.78	1.12	–	58	-0.290	–	–	–
Hunt & Reffert	2023	1.76	0.53	1.40	225	–	–	–	–
Cantat-Gaudin et al.	2020	1.82	0.52	–	123	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 13303	41.2	330.7	49.12	0.54	-2.02	-1.73	-35.35	0.0

💡 Note: The % column shows the percentage of members that UBC 383 shares with each listed object.

Visualization

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