BDSB 125

(MWSC 2990)

0.19 UTI

0.53

C_N

0.14

C_dens

0.38

C_C3

0.0

C_lit

0.89

C_dup

C3 classification BC

Number of members (P>50%) 56

Radius (P>50% members) 7.5 [arcmin]

C_N 0.53 Moderately populated
C_dens 0.14 Very loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 0.89 Very likely unique

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

Overview

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BDSB 125 is a moderately populated, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by very high extinction. It is catalogued as a very massive, very young cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~4.10 kpc) differs significantly from the median photometric distance (~6.70 kpc).

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.89) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Very distant Very high extinction Very massive Very young

Data

🔍 Search references for BDSB 125 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	–	281.465	-2.729	0.244	-1.172	-3.72	28.108
Just et al.	2023	281.51	-2.657	–	–	–	–
Kharchenko et al.	2016	281.51	-2.657	–	–	–	–
Kharchenko et al.	2013	281.517	-2.655	–	1.29	-8.99	83.3

💡 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
Just et al.	2023	–	–	–	1	–	7780	–	–
Kharchenko et al.	2016	6.70	6.45	–	1	–	–	–	–
Kharchenko et al.	2013	6.70	6.45	–	1	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
MCM 11	10.7	281.66	-2.77	0.18	-1.14	-3.82	–	0.03
CWNU 3930	1.8	281.31	-2.8	0.21	-1.52	-3.85	47.3	0.17
Ryu 912	1.8	281.32	-2.8	0.19	-1.54	-3.86	–	0.39

💡 Note: The % column shows the percentage of members that BDSB 125 shares with each listed object.

Visualization

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