UBC 291

0.64 UTI

0.75

C_N

1.0

C_dens

0.75

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 111

Stellar density (N₅₀/rad) 6.3 [N/pc²]

C3 classification AB

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.35 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 291 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate 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 poorly studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 291 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–	199.063	-63.447	0.332	-5.642	-1.569	-16.299
Hunt & Reffert	2024	199.043	-63.442	0.346	-5.667	-1.557	-2.532
Celli et al.	2024	199.091	-63.436	–	–	–	–
Cavallo et al.	2024	199.029	-63.445	0.346	–	–	–
Hunt & Reffert	2023	199.043	-63.442	0.346	-5.667	-1.557	-2.532
Cantat-Gaudin et al.	2020	199.091	-63.436	0.307	-5.624	-1.586	–
Castro-Ginard et al.	2020	199.106	-63.439	0.306	-5.616	-1.584	–

💡 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–	2.6	2.31	2.47	34	0.070	736	–	–
Hunt & Reffert	2024	–	–	–	–	–	1056⁽¹⁾	–	–
Celli et al.	2024	–	–	–	25	–	417	–	–
Cavallo et al.	2024	2.36	2.36	–	219	0.070	–	–	–
Hunt & Reffert	2023	2.60	2.31	2.47	44	–	–	–	–
Cantat-Gaudin et al.	2020	2.95	1.78	–	25	–	–	–	–

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

Visualization

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