Pickard 221

0.05 UTI

0.0

C_N

0.01

C_dens

0.25

C_C3

0.0

C_lit

0.92

C_dup

N₅₀ (P>50% members) 10

Stellar density (N₅₀/rad) 0.1 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 0.92 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Pickard 221 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~6.29 kpc) differs significantly from the median photometric distance (~3.70 kpc).

Note: This is very likely a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.92) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Distant Moderate extinction Near-solar metallicity Young

Data

🔍 Search references for Pickard 221 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	99999–	130.551	-47.086	0.159	-3.233	3.606	65.397
Dias et al.	2026	130.561	-47.091	0.174	-3.217	3.622	–

💡 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–	3.7	1.77	–	57	-0.074	–	–	–
Dias et al.	2026	3.70	1.77	–	57	-0.074	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3431	8.0	130.95	-47.14	0.15	-3.13	3.56	84.45	0.05

💡 Note: The % column shows the percentage of members that Pickard 221 shares with each listed object.

Visualization

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