CWNU 1308

0.24 UTI

0.6

C_N

0.26

C_dens

0.62

C_C3

0.12

C_lit

0.69

C_dup

N_m (P>50%) 70

Core radius and density 2.9 [pc], 1.3 [pc^-2]

C3 classification CA

C_N 0.6 Moderately populated
C_dens 0.26 Loose
C_C3 0.62 Intermediate quality
C_lit 0.12 Rarely studied
C_dup 0.69 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 1308 is a moderately populated, loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.

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

Relatively close High extinction Near-solar metallicity Young

Palma et al. (2025)
Classified as optical pair P95, along with CWNU_2698.

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.18 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.18 (50th percentile).

Data

🔍 Search references for CWNU 1308 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–	276.14	-14.079	0.329	-0.654	-2.036	38.803
Hunt & Reffert	2024	276.127	-14.052	0.313	-0.633	-2.046	43.029
Cavallo et al.	2024	276.147	-14.089	0.316	–	–	–
Hunt & Reffert	2023	276.127	-14.052	0.313	-0.633	-2.046	43.029
He et al.	2023	276.154	-14.089	0.333	-0.639	-2.031	38.8

💡 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–	2.69	3.975	2.61	53	-0.480	962	–	–
Hunt & Reffert	2024	2.81	3.85	2.61	43	–	962⁽¹⁾	–	–
Cavallo et al.	2024	1.85	4.23	–	65	-0.480	–	–	–
Hunt & Reffert	2023	2.81	3.85	2.61	43	–	–	–	–
He et al.	2023	2.57	4.10	–	63	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Sct OB3	31.4	276.17	-14.16	0.31	-0.59	-1.87	29.64	0.19

💡 Note: The % column shows the percentage of members that CWNU 1308 shares with each listed object.

Visualization

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