DBSB 40

(MWSC 1744)

0.05 UTI

0.0

C_N

0.1

C_dens

0.12

C_C3

0.0

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 19

Radius (P>50% members) 8.8 [arcmin]

C_N 0.0 Sparse
C_dens 0.1 Very loose
C_C3 0.12 Very low 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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DBSB 40 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by high extinction. It is catalogued as a low-mass, young cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~2.38 kpc) differs significantly from the median photometric distance (~1.36 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 High extinction Low mass Young

Data

🔍 Search references for DBSB 40 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	–	150.406	-57.74	0.42	-6.859	3.895	20.852
Just et al.	2023	150.325	-57.702	–	–	–	–
Kharchenko et al.	2016	150.325	-57.702	–	–	–	–
Kharchenko et al.	2013	150.33	-57.705	–	-3.23	6.7	-15.5

💡 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	–	–	–	97	–	16	–	–
Kharchenko et al.	2016	1.36	3.23	–	97	–	–	–	–
Kharchenko et al.	2013	1.36	3.23	–	97	–	–	–	–

Visualization

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