CWNU 1144

(OCSN 122)

0.45 UTI

0.25

C_N

0.52

C_dens

1.0

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 25

Stellar density (N₅₀/rad) 2.6 [N/pc²]

C3 classification AA

C_N 0.25 Poorly populated
C_dens 0.52 Moderately dense
C_C3 1.0 Very high quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 1144 is a poorly populated, moderately dense object of very 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 low-mass, near-solar metallicity, young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is poorly studied in the literature.

Very close Low extinction Low mass Near-solar metallicity Young

Liu et al. (2025)
Classified as hyperbolic encounter pair 98 along with HSC_2156.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for CWNU 1144 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–	106.647	-52.004	5.001	-12.976	11.749	8.301
Swiggum et al.	2024	106.421	-52.664	5.149	-13.045	11.933	8.149
Cavallo et al.	2024	105.198	-51.49	5.17	–	–	–
Hunt & Reffert	2023	106.421	-52.664	5.149	-13.045	11.933	-8.58
Qin et al.	2023	104.57	-51.16	5.38	-13.63	11.71	10.77
He et al.	2022	105.407	-51.431	5.167	-13.009	11.999	–

💡 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–	0.2	0.14	0.41	26	-0.040	48	–	–
Liu et al.	2025	0.24	0.13	–	25	–	–	–	–
Swiggum et al.	2024	0.19	–	–	24	–	48	–	–
Cavallo et al.	2024	0.20	0.84	–	48	-0.040	–	–	–
Hunt & Reffert	2023	0.20	0.14	0.41	24	–	–	–	–
Qin et al.	2023	0.20	0.19	–	28	–	–	–	–
He et al.	2022	–	0.05	–	32	–	–	–	–

Visualization

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