BDSB 22

(MWSC 3534)

0.18 UTI

0.0

C_N

0.02

C_dens

0.38

C_C3

0.25

C_lit

1.0

C_dup

C3 classification BC

Number of members (P>50%) 13

Radius (P>50% members) 6.8 [arcmin]

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.38 Low quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

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

Overview

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BDSB 22 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, near the mid-plane, affected by moderate extinction. It is catalogued as a low-mass, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~5.63 kpc) differs significantly from the median photometric distance (~2.01 kpc).

⚠️ 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 Moderate extinction Low mass Intermediate age

Data

🔍 Search references for BDSB 22 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	–	324.103	52.436	0.178	-2.935	-2.259	–
Just et al.	2023	324.108	52.462	–	–	–	–
Kharchenko et al.	2016	324.108	52.462	–	–	–	–
Kharchenko et al.	2013	324.112	52.465	–	-4.5	2.43	–
Kharchenko et al.	2012	324.112	52.465	–	-4.5	2.43	–

💡 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	–	–	–	794	–	6	–	–
Kharchenko et al.	2016	2.01	1.87	–	794	–	–	–	–
Kharchenko et al.	2013	2.01	1.87	–	794	–	–	–	–
Kharchenko et al.	2012	2.01	1.87	–	794	–	–	–	–

Visualization

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