VDBH 197

(vdBergh-Hagen 197; MWSC 2458; BH 197)

0.27 UTI

0.0

C_N

0.36

C_dens

0.38

C_C3

0.31

C_lit

1.0

C_dup

C3 classification BC

Number of members (P>50%) 23

Radius (P>50% members) 4.2 [arcmin]

C_N 0.0 Sparse
C_dens 0.36 Loose
C_C3 0.38 Low quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

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

Overview

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VDBH 197 is a sparse, 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 poorly studied in the literature.

(*): The parallax distance estimate (~2.95 kpc) differs significantly from the median photometric distance (~2.07 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 VDBH 197 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	–	251.576	-45.877	0.339	-3.436	-4.626	-48.56
Just et al.	2023	251.614	-45.849	–	–	–	–
Kharchenko et al.	2016	251.614	-45.849	–	–	–	–
Dias et al.	2014	251.625	-45.86	–	2.09	-2.0	–
Kharchenko et al.	2013	251.625	-45.85	–	-5.53	-1.88	–
Dias et al.	2002	251.625	-45.86	–	1.63	-2.3	–

💡 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	–	–	–	871	–	67	–	–
Kharchenko et al.	2016	2.07	3.10	–	871	–	–	–	–
Kharchenko et al.	2013	2.07	3.10	–	871	–	–	–	–
Dias et al.	2002	1.63	3.23	–	32	–	–	–	–

Visualization

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