CWNU 2771

0.07 UTI

0.0

C_N

0.1

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

C3 classification DB

Number of members (P>50%) 19

Radius (P>50% members) 6.2 [arcmin]

C_N 0.0 Sparse
C_dens 0.1 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

ℹ️

CWNU 2771 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~3.35 kpc) differs significantly from the median photometric distance (~2.40 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Old

Data

🔍 Search references for CWNU 2771 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	256.267	-35.257	0.299	-1.49	-3.503	-16.385
He et al.	2023	256.259	-35.223	0.323	-1.458	-3.512	-31.0

💡 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
He et al.	2023	2.40	2.60	–	3162	–	–	–	–

Visualization

ℹ️