HSC 1225

0.29 UTI

0.26

C_N

0.5

C_dens

0.62

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 26

Core radius and density 1.2 [pc], 2.5 [pc^-2]

C3 classification CA

C_N 0.26 Poorly populated
C_dens 0.5 Moderately dense
C_C3 0.62 Intermediate quality
C_lit 0.03 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 1225 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Relatively close High extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.78 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.78 (50th percentile).

Data

🔍 Search references for HSC 1225 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–	66.339	48.024	0.346	-0.391	-0.692	-30.004
Hunt & Reffert	2024	66.333	48.023	0.334	-0.381	-0.708	-30.006
Cavallo et al.	2024	66.307	48.011	0.339	–	–	–
Hunt & Reffert	2023	66.333	48.023	0.334	-0.381	-0.708	-30.006

💡 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–	2.74	3.98	1.85	183	0.320	475	–	–
Hunt & Reffert	2024	2.74	3.98	1.85	183	–	475⁽¹⁾	–	–
Cavallo et al.	2024	4.31	3.98	–	15	0.320	–	–	–
Hunt & Reffert	2023	2.74	3.98	1.85	183	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 4780	96.2	66.33	48.02	0.34	-0.38	-0.69	-30.0	0.01

💡 Note: The % column shows the percentage of members that HSC 1225 shares with each listed object.

Visualization

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