HSC 1723

0.12 UTI

0.0

C_N

0.61

C_dens

0.25

C_C3

0.25

C_lit

0.44

C_dup

N₅₀ (P>50% members) 21

Stellar density (N₅₀/rad) 3.1 [N/pc²]

C3 classification DB

C_N 0.0 Sparse
C_dens 0.61 Moderately dense
C_C3 0.25 Low quality
C_lit 0.25 Poorly studied
C_dup 0.44 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 1723 is a sparse, moderately dense object of low C3 quality. Its parallax locates it at a moderate distance, near 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.

⚠️ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Very young

Liu et al. (2025)
Classified as primordial binary cluster 204 along with HSC_1721, and as primordial binary cluster 205 along with HSC_1722, and of multiple system 58 along with HSC_1722, HSC_1721 and NGC_2311.

Palma et al. (2025)
Part of multiple system G128, along with HSC_1722 and HSC_1721.

Cavallo et al. (2024)
Silver sample.

Data

🔍 Search references for HSC 1723 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–	104.85	-4.74	0.433	-1.49	0.693	62.256
Liu et al.	2025	104.84	-4.7	0.45	-1.51	0.7	62.28
Hunt & Reffert	2024	104.838	-4.703	0.445	-1.507	0.705	62.279
Cavallo et al.	2024	104.84	-4.728	0.445	–	–	–
Hunt & Reffert	2023	104.838	-4.703	0.445	-1.507	0.705	62.279

💡 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–	2.23	1.18	1.45	10	0.080	162	–	–
Liu et al.	2025	3.02	0.43	–	9	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	162⁽¹⁾	–	–
Cavallo et al.	2024	2.23	1.27	–	10	0.080	–	–	–
Hunt & Reffert	2023	2.11	1.18	1.45	10	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
S 287 C	56.0	104.88	-4.74	0.44	-1.46	0.6	62.26	0.23
Sh2 287C	52.0	104.85	-4.7	0.45	-1.61	0.76	48.19	0.09
BDSB 90	28.0	104.89	-4.81	0.44	-1.49	0.61	62.26	0.21

💡 Note: The % column shows the percentage of members that HSC 1723 shares with each listed object.

Visualization

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