UBC 138

0.04 UTI

0.81

C_N

1.0

C_dens

0.75

C_C3

0.0

C_lit

0.09

C_dup

N₅₀ (P>50% members) 253

Stellar density (N₅₀/rad) 67.3 [N/pc²]

C3 classification AB

C_N 0.81 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.09 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

UBC 138 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a young cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 6 years.

⚠️ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

(*): The parallax distance estimate (~4.17 kpc) differs significantly from the median photometric distance (~3.04 kpc).

Distant Moderate extinction Young

Data

🔍 Search references for UBC 138 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	302.502	34.967	0.24	-3.377	-5.113	-28.783
Castro-Ginard et al.	2020	302.485	34.96	0.241	-3.389	-5.082	–

💡 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–	3.04	2.72	–	27	–	–	–	–
Kounkel et al.	2020	3.04	2.72	–	27	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Berkeley 50	91.3	302.5	34.97	0.24	-3.38	-5.11	-28.78	0.84
OC 0101	17.4	302.51	34.97	0.23	-3.37	-5.13	–	0.0

💡 Note: The % column shows the percentage of members that UBC 138 shares with each listed object.

Visualization

ℹ️