OC 0621

0.32 UTI

0.27

C_N

0.21

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 27

Core radius and density 2.2 [pc], 1.0 [pc^-2]

C3 classification AA

C_N 0.27 Poorly populated
C_dens 0.21 Very loose
C_C3 1.0 Very high quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OC 0621 is a poorly populated, very loose object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.

Distant High extinction Near-solar metallicity Young

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.09 (50th percentile), false positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.09 (50th percentile), false positive (human-assigned).

Data

🔍 Search references for OC 0621 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–	225.919	-59.993	0.305	-4.629	-3.155	9.975
Hunt & Reffert	2024	225.924	-60.016	0.294	-4.639	-3.187	46.755
Cavallo et al.	2024	225.919	-60.019	0.293	–	–	–
Hunt & Reffert	2023	225.924	-60.016	0.294	-4.639	-3.187	46.755
Hao et al.	2022	225.895	-60.003	0.315	-4.661	-3.129	–

💡 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–	3.14	4.43	2.35	50	0.265	632	–	–
Hunt & Reffert	2024	3.14	4.50	2.35	63	–	632⁽¹⁾	–	–
Cavallo et al.	2024	3.77	4.36	–	36	0.410	–	–	–
Hunt & Reffert	2023	3.14	4.50	2.35	64	–	–	–	–
Hao et al.	2022	–	2.21	–	4	0.119	–	–	–

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

Visualization

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