VDBH 189
(Lynga 9; MWSC 2389; OCL 966; vdBergh-Hagen 189; ESO 226 02; FSR 1726)
0.92
UTI
1.0
CN
1.0
Cdens
1.0
CC3
0.81
Clit
1.0
Cdup
Nm (P>50%)
713
Core radius and density
1.3 [pc], 34 [pc-2]
- CN 1.0 Very rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.81 Well-studied
- Cdup 1.0 Unique
π₯ Members
π Colab
π¬ Bayestar19
MOCA
π CDS
π Simbad
π CDS (Ξ±, Ξ΄)
π Simbad (Ξ±, Ξ΄)
MOCA
π CDS
π Simbad
π CDS (Ξ±, Ξ΄)
π Simbad (Ξ±, Ξ΄)
Overview
VDBH 189 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.
Note: This object contains blue stragglers according to at least one source.
Note: This object shares a very small percentage of members with a later reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999β | 245.173 | -48.52 | 0.388 | -2.551 | -2.441 | -49.238 |
| Hu & Soubiran | 2025 | 245.17 | -48.519 | β | β | β | β |
| Almeida et al. | 2025 | 245.171 | -48.519 | β | β | β | β |
| Hunt & Reffert | 2024 | 245.177 | -48.524 | 0.399 | -2.554 | -2.442 | -36.958 |
| Cavallo et al. | 2024 | 245.17 | -48.519 | 0.396 | β | β | β |
| Hunt & Reffert | 2023 | 245.177 | -48.524 | 0.399 | -2.554 | -2.442 | -36.958 |
| Just et al. | 2023 | 245.16 | -48.516 | β | β | β | β |
| Jadhav & Subramaniam | 2021 | 245.17 | -48.523 | β | β | β | β |
| Dias et al. | 2021 | 245.171 | -48.519 | 0.358 | -2.564 | -2.41 | -51.386 |
| Cantat-Gaudin et al. | 2020 | 245.17 | -48.523 | 0.359 | -2.559 | -2.415 | β |
| SΓ‘nchez et al. | 2020 | 245.171 | -48.529 | β | -2.501 | -2.401 | β |
| Cantat-Gaudin & Anders | 2020 | 245.17 | -48.523 | 0.359 | -2.559 | -2.415 | β |
| Soubiran et al. | 2018 | 245.17 | -48.523 | β | β | β | -50.3 |
| Bica et al. | 2019 | 245.178 | -48.538 | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 245.17 | -48.523 | 0.359 | -2.559 | -2.415 | β |
| Dib et al. | 2018 | 245.17 | -48.517 | β | β | β | β |
| Sampedro et al. | 2017 | 245.171 | -48.529 | β | -4.08 | -2.92 | β |
| Joshi et al. | 2016 | 245.17 | -48.517 | β | β | β | β |
| Kharchenko et al. | 2016 | 245.16 | -48.516 | β | β | β | β |
| Dias et al. | 2014 | 245.171 | -48.529 | β | -4.2 | -2.54 | β |
| Kharchenko et al. | 2013 | 245.17 | -48.517 | β | -9.94 | 3.34 | β |
| Morales et al. | 2013 | 245.171 | -48.529 | β | β | β | β |
| Bukowiecki et al. | 2011 | 245.188 | -48.511 | β | β | β | β |
| Dias et al. | 2002 | 245.171 | -48.529 | β | -4.2 | -2.54 | β |
| Lynga | 1987 | 245.135 | -48.552 | β | β | β | β |
| van den Bergh & Hagen | 1975 | 244.2 | -48.433 | β | β | β | β |
π‘ 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999β | 2.32 | 3.34 | 2.36 | 661 | -0.220 | 4158 | β | 1 |
| Hu & Soubiran | 2025 | β | β | β | β | -0.220(5) | β | β | β |
| Almeida et al. | 2025 | 2.32 | 2.98 | β | 62 | β | 3338 | β | β |
| Hunt & Reffert | 2024 | 2.33 | 3.34 | 2.36 | 289 | β | 6240(1) | β | β |
| Cavallo et al. | 2024 | 1.80 | 3.45 | β | 891 | -0.220 | β | β | β |
| Hunt & Reffert | 2023 | 2.33 | 3.34 | 2.36 | 289 | β | β | β | β |
| Just et al. | 2023 | β | β | β | 661 | β | 85 | β | β |
| Jadhav & Subramaniam | 2021 | 2.52 | 2.50 | β | 631 | β | 4788 | β | 1(1) |
| Dias et al. | 2021 | 2.32 | 2.98 | β | 62 | 0.519 | β | β | β |
| Cantat-Gaudin et al. | 2020 | 2.52 | 2.50 | β | 631 | β | β | β | β |
| Kounkel et al. | 2020 | 2.67 | 3.36 | β | 525 | β | β | β | β |
| Cantat-Gaudin & Anders | 2020 | 2.57 | β | β | β | β | β | β | β |
| Soubiran et al. | 2018 | 2.57 | β | β | β | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 2.57 | β | β | β | β | β | β | β |
| Dib et al. | 2018 | 1.70 | β | β | 661 | β | β | β | β |
| Joshi et al. | 2016 | 1.70 | 3.68 | β | 661 | β | β | β | β |
| Kharchenko et al. | 2016 | 1.70 | 3.68 | β | 661 | β | β | β | β |
| Kharchenko et al. | 2013 | 1.70 | 3.68 | β | 661 | β | β | β | β |
| Morales et al. | 2013 | 1.70 | β | β | 700 | β | β | β | β |
| Bukowiecki et al. | 2012 | β | β | β | β | β | 4158 | β | β |
| Bukowiecki et al. | 2011 | 2.03(1) | 2.93 | β | 891 | β | β | β | β |
| Dias et al. | 2002 | 1.70 | 3.72 | β | 708 | β | β | β | β |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.68 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.68 (50th percentile).
Hu et al. (2021)
Ellipticities (core, all): e_core=0.0825, e_all=0.0208.
Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.