HSC 837

0.19 UTI

0.45

C_N

0.14

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

C3 classification CB

Number of members (P>50%) 45

Radius (P>50% members) 7.6 [arcmin]

C_N 0.45 Poorly populated
C_dens 0.14 Very loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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HSC 837 is a poorly populated, 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 object shares a moderate 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.

Distant Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 837 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	–	342.967	58.025	0.276	-3.24	-2.491	-79.961
Hunt & Reffert	2024	343.057	58.036	0.28	-3.235	-2.501	-55.275
Cavallo et al.	2024	342.988	58.023	0.28	–	–	–
Hunt & Reffert	2023	343.057	58.036	0.28	-3.235	-2.501	-55.275

💡 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]	Bfr	BSS
Hunt & Reffert	2024	–	–	–	–	–	475*	–	–
Cavallo et al.	2024	3.63	2.55	–	58	0.420	–	–	–
Hunt & Reffert	2023	3.37	2.44	1.78	64	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 4355	44.4	342.94	57.96	0.28	-3.28	-2.53	–	0.02

💡 Note: The % column shows the percentage of members that HSC 837 shares with each listed object.

Visualization

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