QC 4

0.08 UTI

0.61

C_N

1.0

C_dens

0.5

C_C3

0.0

C_lit

0.19

C_dup

C3 classification BB

Number of members (P>50%) 72

Radius (P>50% members) 2.8 [arcmin]

C_N 0.61 Moderately populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.19 Likely duplicate

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

Overview

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QC 4 is a moderately populated, very dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, young 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.

Relatively close Moderate extinction Metal-rich Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for QC 4 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	–	309.115	46.882	0.418	-2.314	-5.485	–
Hunt & Reffert	2024	309.113	46.894	0.421	-2.358	-5.476	–
Cavallo et al.	2024	309.127	46.868	0.419	–	–	–
Hunt & Reffert	2023	309.113	46.894	0.421	-2.358	-5.476	–

💡 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	–	–	–	–	–	469*	–	–
Cavallo et al.	2024	2.41	2.26	–	81	0.680	–	–	–
Hunt & Reffert	2023	2.22	1.90	2.14	82	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 1115	80.6	309.12	46.88	0.42	-2.29	-5.49	–	0.41

💡 Note: The % column shows the percentage of members that QC 4 shares with each listed object.

Visualization

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