HSC 853

0.55 UTI

0.62

C_N

0.9

C_dens

0.75

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 73

Stellar density (N₅₀/rad) 4.5 [N/pc²]

C3 classification AB

C_N 0.62 Moderately populated
C_dens 0.9 Very dense
C_C3 0.75 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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HSC 853 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It was recently reported in the literature.

Close Moderate extinction Near-solar metallicity Very young

Liu et al. (2025)
Classified as primordial binary cluster 177 along with CWNU_1228, and of multiple system 34 along with Pismis-Moreno_1, CWNU_1126, CWNU_1228, OC_0185 and HSC_824.

Palma et al. (2025)
Classified as optical pair P530, along with UPK_194.

Cavallo et al. (2024)
Silver sample.

Data

🔍 Search references for HSC 853 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–	337.155	65.164	1.084	-1.858	-2.43	-20.92
Liu et al.	2025	337.37	65.19	1.08	-1.87	-2.43	-15.64
Hunt & Reffert	2024	337.372	65.187	1.083	-1.875	-2.426	-15.641
Cavallo et al.	2024	337.085	65.155	1.082	–	–	–
Hunt & Reffert	2023	337.372	65.187	1.083	-1.875	-2.426	-15.641

💡 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–	0.96	2.0	2.18	13	0.230	135	–	–
Liu et al.	2025	2.07	0.75	–	15	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	135⁽¹⁾	–	–
Cavallo et al.	2024	0.96	2.13	–	13	0.230	–	–	–
Hunt & Reffert	2023	0.89	2.00	2.18	6	–	–	–	–

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

Visualization

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