UBC 421

0.28 UTI

0.41

C_N

0.22

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 41

Radius (P>50% members) 8.5 [arcmin]

C_N 0.41 Poorly populated
C_dens 0.22 Very loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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UBC 421 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a moderate distance, below 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.

Note: This object shares a small percentage of members with 2 later reported entries. See table with shared members information.

Relatively close Moderate extinction Young

Data

🔍 Search references for UBC 421 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	–	39.683	57.794	0.409	-0.111	-1.079	–
Cantat-Gaudin et al.	2020	39.836	57.802	0.399	-0.127	-1.035	–
Castro-Ginard et al.	2020	39.739	57.795	0.403	-0.129	-1.038	–

💡 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
Cantat-Gaudin et al.	2020	2.47	1.68	–	34	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 6257	24.4	39.58	57.75	0.4	-0.08	-1.15	–	0.07
CWWDL 13367	22.0	39.37	57.89	0.42	-0.16	-1.02	–	0.08

💡 Note: The % column shows the percentage of members that UBC 421 shares with each listed object.

Visualization

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