OC 0704

0.00 UTI

0.39

C_N

0.15

C_dens

1.0

C_C3

0.06

C_lit

0.0

C_dup

N_m (P>50%) 39

Core radius and density 0.6 [pc], 0.8 [pc^-2]

C3 classification AA

C_N 0.39 Poorly populated
C_dens 0.15 Very loose
C_C3 1.0 Very high quality
C_lit 0.06 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 0704 is a poorly populated, very loose object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (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.

Relatively close High extinction Massive Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.95 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.95 (50th percentile).

Data

🔍 Search references for OC 0704 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–	266.576	-29.176	0.49	1.721	-0.793	-34.156
Hunt & Reffert	2024	266.575	-29.174	0.484	1.723	-0.793	-33.298
Cavallo et al.	2024	266.578	-29.167	0.484	–	–	–
Hunt & Reffert	2023	266.575	-29.174	0.484	1.723	-0.793	-33.298
Hao et al.	2022	266.557	-29.18	0.51	1.736	-0.79	-34.006

💡 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–	1.92	3.045	2.46	190	-0.400	3469	–	–
Hunt & Reffert	2024	1.93	2.70	2.46	190	–	3469⁽¹⁾	–	–
Cavallo et al.	2024	1.12	3.39	–	214	-1.050	–	–	–
Hunt & Reffert	2023	1.92	2.70	2.46	190	–	–	–	–
Hao et al.	2022	–	5.12	–	126	0.250	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 1660	100.0	266.57	-29.17	0.48	1.7	-0.8	-34.92	0.0
FoF 1624	100.0	266.58	-29.17	0.48	1.72	-0.79	-34.94	0.57
UBC 335	100.0	266.57	-29.18	0.48	1.72	-0.79	-34.64	0.27

💡 Note: The % column shows the percentage of members that OC 0704 shares with each listed object.

Visualization

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