VDB 1
(vdBergh 1; MWSC 934; CV Mon; OCL 527; FSR 1042)
Summary
VDB 1 is a moderately populated, very dense object of intermediate C3 quality. It is located at a relatively close distance from the Sun, near the mid-plane. It is very well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dambis (1999) | 99.25 | 3.067 | – | – | – | – |
| Dias et al. (2002) | 99.25 | 3.067 | – | 3.76 | -4.78 | 16.4 |
| Chen et al. (2003) | 99.232 | 3.119 | – | -4.78 | -3.63 | 18.9 |
| Kharchenko et al. (2007) | 99.25 | 3.07 | – | 0.04 | – | – |
| Kharchenko et al. (2013) | 99.255 | 3.07 | – | -0.29 | -0.53 | 19.3 |
| Kharchenko et al. (2016) | 99.248 | 3.071 | – | – | – | – |
| Loktin & Popova (2017) | 99.255 | 3.068 | – | -0.088 | -0.096 | 19.3 |
| Cantat-Gaudin et al. (2018) | 99.275 | 3.078 | 0.523 | 0.396 | -0.771 | – |
| Bica et al. (2019) | 99.282 | 3.089 | – | – | – | – |
| Cantat-Gaudin et al. (2020) | 99.275 | 3.078 | 0.523 | 0.396 | -0.771 | – |
| Dias et al. (2021) | 99.281 | 3.074 | 0.521 | 0.343 | -0.786 | – |
| Just et al. (2023) | 99.248 | 3.071 | – | – | – | – |
| Hunt & Reffert (2023) | 99.273 | 3.079 | 0.554 | 0.388 | -0.711 | 9.351 |
| Cavallo et al. (2024) | 99.282 | 3.074 | 0.555 | – | – | – |
| Hunt & Reffert (2024) | 99.273 | 3.079 | 0.554 | 0.388 | -0.711 | 9.351 |
| Almeida et al. (2025) | 99.281 | 3.074 | – | – | – | – |
| UCC | 99.278 | 3.079 | 0.552 | 0.39 | -0.702 | 9.352 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dambis (1999) | E_B-V_=0.684, DM0=10.8, log_age_=7.9 |
| Dias et al. (2002) | E(B-V)=0.71, Dist=1687.0, Age=8.025 |
| Chen et al. (2003) | HDis=1687, Age=0.1 |
| Kharchenko et al. (2013) | E(B-V)=0.729, d=1490.0, logt=8.315 |
| Kharchenko et al. (2016) | E(B-V)=0.729, d=1490.0, logt=8.315 |
| Loktin & Popova (2017) | E(B-V)=0.683, Dist=1560, logt=8.028 |
| Cantat-Gaudin et al. (2018) | dmode=1811.4 |
| Cantat-Gaudin et al. (2020) | AVNN=1.89, DistPc=1946.0, AgeNN=7.61 |
| Dias et al. (2021) | Av=2.299, Dist=1716, logage=7.713, [Fe/H]=0.318 |
| Just et al. (2023) | logt=8.315, logmt=2.219 |
| Hunt & Reffert (2023) | AV50=2.367, diffAV50=2.098, MOD50=11.15, logAge50=8.242 |
| Cavallo et al. (2024) | AV50=2.28, dMod50=11.39, logAge50=8.58, [Fe/H]50=0.57 |
| Hunt & Reffert (2024) | MassJ=400.941, MassTot=400.941 |
| Almeida et al. (2025) | AV=2.299, Dist=1716, logAge=7.713, MassRk=188.4 |
Search coordinates in Bayestar19