HSC 912

0.14 UTI

0.25

C_N

0.06

C_dens

0.25

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 25

Core radius and density 2.5 [pc], 0.3 [pc^-2]

C3 classification CC

C_N 0.25 Poorly populated
C_dens 0.06 Very loose
C_C3 0.25 Low quality
C_lit 0.06 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 912 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

⚠️ 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 Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.19 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.19 (50th percentile).

Data

🔍 Search references for HSC 912 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–	349.63	66.606	0.822	0.196	-2.051	-14.519
Hu & Soubiran	2025	349.612	66.57	–	–	–	–
Hunt & Reffert	2024	349.715	66.646	0.817	0.232	-2.044	-12.438
Cavallo et al.	2024	349.612	66.57	0.824	–	–	–
Hunt & Reffert	2023	349.715	66.646	0.817	0.232	-2.044	-12.438

💡 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–	1.2	3.24	2.01	79	-0.140	103	–	–
Hu & Soubiran	2025	–	–	–	–	-0.110⁽⁵⁾	–	–	–
Hunt & Reffert	2024	1.20	3.24	2.01	79	–	103⁽¹⁾	–	–
Cavallo et al.	2024	1.25	3.13	–	708	-0.170	–	–	–
Hunt & Reffert	2023	1.20	3.24	2.01	79	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3326	88.0	349.63	66.54	0.82	0.2	-2.05	-14.52	0.01

💡 Note: The % column shows the percentage of members that HSC 912 shares with each listed object.

Visualization

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