UBC 1577

0.37 UTI

0.28

C_N

0.81

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 28

Radius (P>50% members) 3.7 [arcmin]

C_N 0.28 Poorly populated
C_dens 0.81 Dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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UBC 1577 is a poorly populated, dense object of high C3 quality. Its parallax locates it at a moderate distance, below 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.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Distant Moderate extinction Near-solar metallicity Young

Data

🔍 Search references for UBC 1577 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	–	29.447	57.456	0.408	-1.32	-1.233	–
Zhang et al.	2024	29.42	57.445	–	–	–	–
Hunt & Reffert	2024	29.42	57.445	0.417	-1.336	-1.216	-4.759
Castro-Ginard et al.	2022	29.48	57.45	0.41	-1.32	-1.24	–

💡 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
Zhang et al.	2024	–	–	–	–	-0.196*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	161*	–	–
Castro-Ginard et al.	2022	3.00	1.05	–	35	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 441	85.7	29.42	57.45	0.41	-1.32	-1.24	–	0.04

💡 Note: The % column shows the percentage of members that UBC 1577 shares with each listed object.

Visualization

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