DBSB 139

(MWSC 2277)

0.21 UTI

0.44

C_N

0.23

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

C3 classification BC

Number of members (P>50%) 44

Radius (P>50% members) 5.8 [arcmin]

C_N 0.44 Poorly populated
C_dens 0.23 Very loose
C_C3 0.38 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 139 is a poorly 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 low-mass, young cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~3.69 kpc) differs significantly from the median photometric distance (~1.95 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 Very high extinction Low mass Young

Data

🔍 Search references for DBSB 139 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	–	227.488	-58.428	0.271	-7.11	-4.691	-26.253
Just et al.	2023	227.493	-58.424	–	–	–	–
Kharchenko et al.	2016	227.493	-58.424	–	–	–	–
Kharchenko et al.	2013	227.505	-58.426	–	-3.57	0.63	-65.8

💡 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	–	–	–	32	–	40	–	–
Kharchenko et al.	2016	1.95	5.29	–	32	–	–	–	–
Kharchenko et al.	2013	1.95	5.29	–	32	–	–	–	–

Visualization

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