HSC 1847

0.09 UTI

0.0

C_N

0.11

C_dens

0.38

C_C3

0.0

C_lit

0.88

C_dup

N₅₀ (P>50% members) 22

Stellar density (N₅₀/rad) 0.5 [N/pc²]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.11 Very loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 0.88 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 1847 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.

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

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.88) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1847 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–	109.495	-20.006	0.317	-1.689	3.354	–
Hunt & Reffert	2024	109.49	-20.01	0.312	-1.694	3.359	–
Cavallo et al.	2024	109.504	-19.986	0.312	–	–	–
Hunt & Reffert	2023	109.49	-20.01	0.312	-1.694	3.359	–

💡 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–	2.985	1.525	1.29	23	0.140	275	–	–
Hunt & Reffert	2024	–	–	–	–	–	275⁽¹⁾	–	–
Cavallo et al.	2024	3.25	1.51	–	15	0.140	–	–	–
Hunt & Reffert	2023	2.72	1.54	1.29	31	–	–	–	–

(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 3952	92.0	109.5	-19.99	0.31	-1.69	3.34	–	0.02
CWWDL 3813	12.0	109.57	-20.05	0.32	-2.02	3.31	–	0.16

💡 Note: The % column shows the percentage of members that HSC 1847 shares with each listed object.

Visualization

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