UBC 1284

0.60 UTI

0.38

C_N

1.0

C_dens

1.0

C_C3

0.31

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 38

Radius (P>50% members) 0.9 [arcmin]

C_N 0.38 Poorly populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

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

Overview

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UBC 1284 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is poorly studied in the literature.

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 1284 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	–	88.084	33.757	0.24	0.631	0.129	–
Hu & Soubiran	2025	88.074	33.761	–	–	–	–
Hunt & Reffert	2024	88.081	33.758	0.24	0.626	0.131	–
Cavallo et al.	2024	88.074	33.76	0.238	–	–	–
Hunt & Reffert	2023	88.081	33.758	0.24	0.626	0.131	–
Castro-Ginard et al.	2022	88.09	33.76	0.23	0.61	0.13	–

💡 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
Hu & Soubiran	2025	–	–	–	–	-0.250*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	230*	–	–
Cavallo et al.	2024	3.28	1.79	–	871	-0.630	–	–	–
Hunt & Reffert	2023	3.74	1.36	0.82	603	–	–	–	–
Castro-Ginard et al.	2022	5.62	1.55	–	208	–	–	–	–

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

Visualization

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