UBC 1275

0.17 UTI

0.0

C_N

0.33

C_dens

0.38

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 22

Core radius and density 1.1 [pc], 1.7 [pc^-2]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.33 Loose
C_C3 0.38 Low 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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UBC 1275 is a sparse, loose object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Low extinction Near-solar metallicity Intermediate age

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 UBC 1275 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–	80.689	43.406	0.388	-0.143	-0.975	–
Hunt & Reffert	2024	80.679	43.41	0.39	-0.174	-0.98	–
Cavallo et al.	2024	80.679	43.405	0.392	–	–	–
Hunt & Reffert	2023	80.679	43.41	0.39	-0.174	-0.98	–
Castro-Ginard et al.	2022	80.68	43.4	0.39	-0.16	-0.98	–

💡 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–	2.52	0.86	1.25	294	0.100	135	–	–
Hunt & Reffert	2024	2.43	0.86	1.25	294	–	135⁽¹⁾	–	–
Cavallo et al.	2024	2.61	1.09	–	269	0.100	–	–	–
Hunt & Reffert	2023	2.43	0.86	1.25	294	–	–	–	–
Castro-Ginard et al.	2022	2.85	0.48	–	337	–	–	–	–

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

Visualization

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