HSC 870

0.08 UTI

0.25

C_N

1.0

C_dens

0.62

C_C3

0.0

C_lit

0.2

C_dup

C3 classification AC

Number of members (P>50%) 25

Radius (P>50% members) 2.9 [arcmin]

C_N 0.25 Poorly populated
C_dens 1.0 Very dense
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.2 Likely duplicate

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

Overview

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HSC 870 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by high extinction. It is catalogued as a very old cluster (see Parameters). It was recently reported in the literature.

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

Close High extinction Very old

Data

🔍 Search references for HSC 870 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	–	344.069	62.648	1.246	-0.699	-2.404	1.979
Hunt & Reffert	2024	344.034	62.618	1.347	-0.671	-2.376	–
Hunt & Reffert	2023	344.034	62.618	1.347	-0.671	-2.376	–

💡 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	–	–	–	–	–	212*	–	–
Hunt & Reffert	2023	0.72	4.99	1.58	6368	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
ASCC 125	80.0	344.11	62.71	1.19	-0.54	-2.18	-24.6	0.78
FoF 2249	72.0	344.27	62.76	1.18	-0.95	-2.29	-19.96	0.4

💡 Note: The % column shows the percentage of members that HSC 870 shares with each listed object.

Visualization

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