CWNU 1013

(OCSN 163)

0.33 UTI

0.52

C_N

0.38

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 53

Stellar density (N₅₀/rad) 1.9 [N/pc²]

C3 classification AB

C_N 0.52 Moderately populated
C_dens 0.38 Loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 1013 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the absorption and age parameters (see Parameters). It is rarely studied in the literature.

Note: This object shares a very small percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Very close Low extinction Near-solar metallicity Young

Palma et al. (2025)
Classified as optical pair P285, along with CWNU_1169.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.58 (50th percentile).

Data

🔍 Search references for CWNU 1013 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–	104.811	-34.472	4.302	-11.807	8.072	14.647
Cavallo et al.	2024	104.735	-34.441	4.298	–	–	–
Hunt & Reffert	2023	104.552	-33.058	4.289	-11.985	8.057	13.672
Qin et al.	2023	104.96	-35.32	4.4	-12.14	8.29	14.63
He et al.	2022	104.716	-35.031	4.37	-11.978	8.328	–

💡 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–	0.23	0.34	0.47	36	0.190	–	–	–
Cavallo et al.	2024	0.23	0.49	–	37	0.190	–	–	–
Hunt & Reffert	2023	0.23	0.57	0.47	402	–	–	–	–
Qin et al.	2023	0.25	0.19	–	35	–	–	–	–
He et al.	2022	–	0.05	–	32	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 1162	3.8	106.28	-34.46	3.88	-11.45	7.15	16.86	0.22

💡 Note: The % column shows the percentage of members that CWNU 1013 shares with each listed object.

Visualization

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