BDSB 15

(MWSC 3187)

0.06 UTI

0.0

C_N

0.05

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 14

Radius (P>50% members) 6.4 [arcmin]

C_N 0.0 Sparse
C_dens 0.05 Very loose
C_C3 0.25 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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BDSB 15 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~4.07 kpc) differs significantly from the median photometric distance (~2.74 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 Intermediate age

Data

🔍 Search references for BDSB 15 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	–	297.269	26.837	0.246	-3.876	-5.613	-6.555
Just et al.	2023	297.296	26.833	–	–	–	–
Kharchenko et al.	2016	297.296	26.833	–	–	–	–
Kharchenko et al.	2013	297.301	26.835	–	-9.02	-9.79	–

💡 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	–	–	–	389	–	134	–	–
Kharchenko et al.	2016	2.74	3.94	–	389	–	–	–	–
Kharchenko et al.	2013	2.74	3.94	–	389	–	–	–	–

Visualization

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