HSC 1556

0.39 UTI

0.25

C_N

0.59

C_dens

0.5

C_C3

0.31

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 25

Radius (P>50% members) 2.7 [arcmin]

C_N 0.25 Poorly populated
C_dens 0.59 Moderately dense
C_C3 0.5 Intermediate quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

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

Overview

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HSC 1556 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, well above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.

Distant Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1556 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	–	103.877	19.164	0.271	-0.454	-0.182	40.142
Hu & Soubiran	2025	103.883	19.181	–	–	–	–
Zhang et al.	2024	103.873	19.157	–	–	–	–
Hunt & Reffert	2024	103.873	19.157	0.262	-0.467	-0.193	41.871
Cavallo et al.	2024	103.883	19.181	0.263	–	–	–
Hunt & Reffert	2023	103.873	19.157	0.262	-0.467	-0.193	41.871

💡 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	–	–	–	–	-0.140*	–	–	–
Zhang et al.	2024	–	–	–	–	-0.182*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	126*	–	–
Cavallo et al.	2024	4.63	0.60	–	603	0.390	–	–	–
Hunt & Reffert	2023	3.52	0.13	0.30	1091	–	–	–	–

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

Visualization

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