OC 0070

0.00 UTI

0.35

C_N

0.13

C_dens

0.75

C_C3

0.1

C_lit

0.0

C_dup

N_m (P>50%) 35

Core radius and density 2.6 [pc], 0.6 [pc^-2]

C3 classification AB

C_N 0.35 Poorly populated
C_dens 0.13 Very loose
C_C3 0.75 High quality
C_lit 0.1 Rarely studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OC 0070 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.

⚠️ Warning: This is very 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 Moderate extinction Near-solar metallicity Young

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 300 along with UPK_52.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for OC 0070 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–	290.394	9.013	1.149	0.79	-3.522	-11.461
Hunt & Reffert	2024	290.402	9.082	1.139	0.805	-3.461	-5.33
Cavallo et al.	2024	290.409	8.933	1.139	–	–	–
Hunt & Reffert	2023	290.402	9.082	1.139	0.805	-3.461	-5.33
Hao et al.	2022	290.415	9.093	1.135	0.727	-3.58	-22.952

💡 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–	0.875	1.82	2.135	40	0.070	262	–	–
Liu et al.	2025	2.26	0.73	–	41	–	–	–	–
Hunt & Reffert	2024	0.83	1.82	2.14	40	–	262⁽¹⁾	–	–
Cavallo et al.	2024	0.92	2.07	–	41	0.090	–	–	–
Hunt & Reffert	2023	0.83	1.82	2.13	40	–	–	–	–
Hao et al.	2022	–	1.29	–	40	0.049	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 896	100.0	290.4	8.98	1.15	0.79	-3.5	-8.77	0.29

💡 Note: The % column shows the percentage of members that OC 0070 shares with each listed object.

Visualization

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