CWNU 491

0.32 UTI

0.0

C_N

1.0

C_dens

0.62

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AC

Number of members (P>50%) 21

Radius (P>50% members) 4.9 [arcmin]

C_N 0.0 Sparse
C_dens 1.0 Very dense
C_C3 0.62 Intermediate 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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CWNU 491 is a sparse, very dense object of intermediate C3 quality. Its parallax locates it at a relatively close^* distance, above the mid-plane, affected by very high extinction. It is catalogued as an extremely metal-poor, very young cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~1.10 kpc) differs significantly from the median photometric distance (~1.70 kpc).

Relatively close Very high extinction Extremely metal-poor Very young

Data

🔍 Search references for CWNU 491 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	–	7.201	65.492	0.911	-1.923	-0.754	-42.895
He et al.	2022	7.178	65.439	0.91	-1.94	-0.75	–

💡 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.	2022	1.70	5.04	–	1	-2.028	–	–	–

Visualization

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