HSC 1757

0.00 UTI

0.33

C_N

1.0

C_dens

0.75

C_C3

0.25

C_lit

0.0

C_dup

C3 classification BA

Number of members (P>50%) 33

Radius (P>50% members) 1.2 [arcmin]

C_N 0.33 Poorly populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.25 Poorly studied
C_dup 0.0 Very likely duplicate

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

Overview

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HSC 1757 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a large distance, well below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster (see Parameters). It was recently reported in the literature.

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

Very distant Low extinction Near-solar metallicity Old

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1757 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	–	100.509	-12.962	0.157	0.123	1.393	50.317
Hu & Soubiran	2025	100.514	-12.959	–	–	–	–
Hunt & Reffert	2024	100.512	-12.954	0.16	0.112	1.366	50.318
Cavallo et al.	2024	100.514	-12.959	0.157	–	–	–
Hunt & Reffert	2023	100.512	-12.954	0.16	0.112	1.366	50.318

💡 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
Hu & Soubiran	2025	–	–	–	–	-0.480*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	437*	–	–
Cavallo et al.	2024	4.83	0.98	–	2630	-0.270	–	–	–
Hunt & Reffert	2023	6.75	0.55	0.99	1683	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
DC 1	100.0	100.5	-12.97	0.15	0.12	1.35	50.32	0.57

💡 Note: The % column shows the percentage of members that HSC 1757 shares with each listed object.

Visualization

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