HSC 2183

0.16 UTI

0.0

C_N

0.49

C_dens

0.25

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 21

Core radius and density 0.8 [pc], 2.5 [pc^-2]

C3 classification DB

C_N 0.0 Sparse
C_dens 0.49 Loose
C_C3 0.25 Low quality
C_lit 0.03 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 2183 is a sparse, loose object of low 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, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

⚠️ 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 High extinction Near-solar metallicity Very young

Cavallo et al. (2024)
Bronze sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.56 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.56 (50th percentile).

Data

🔍 Search references for HSC 2183 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–	135.862	-48.53	0.462	-4.743	3.913	28.857
Hunt & Reffert	2024	135.876	-48.525	0.461	-4.722	3.891	-7.346
Cavallo et al.	2024	135.832	-48.539	0.458	–	–	–
Hunt & Reffert	2023	135.876	-48.525	0.461	-4.722	3.891	-7.346

💡 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–	2.08	3.82	2.0	6	-0.070	175	–	–
Hunt & Reffert	2024	2.08	3.82	2.00	6	–	175⁽¹⁾	–	–
Cavallo et al.	2024	1.91	3.86	–	65	-0.070	–	–	–
Hunt & Reffert	2023	2.08	3.82	2.00	6	–	–	–	–

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

Visualization

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