Haffner 20
(VDBH 16; MWSC 1385; OCL 692; vdBergh-Hagen 16; ESO 430 04)
Summary
Haffner 20 is a rich, very dense object of high C3 quality. It is located at a moderate distance from the Sun, near the mid-plane. It is well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 119.062 | -30.367 | – | -0.61 | -1.83 | – |
| Kharchenko et al. (2013) | 119.062 | -30.367 | – | 0.92 | -2.38 | – |
| Kharchenko et al. (2016) | 119.058 | -30.364 | – | – | – | – |
| Loktin & Popova (2017) | 119.07 | -30.367 | – | 0.738 | -0.803 | – |
| Cantat-Gaudin et al. (2018) | 119.061 | -30.369 | 0.178 | -2.294 | 3.407 | – |
| Bica et al. (2019) | 119.072 | -30.359 | – | – | – | – |
| Soubiran et al. (2018) | 119.061 | -30.369 | – | – | – | 69.48 |
| Cantat-Gaudin et al. (2020) | 119.061 | -30.369 | 0.178 | -2.294 | 3.407 | – |
| Dias et al. (2021) | 119.06 | -30.363 | 0.172 | -2.316 | 3.43 | – |
| Just et al. (2023) | 119.058 | -30.364 | – | – | – | – |
| Hunt & Reffert (2023) | 119.065 | -30.369 | 0.217 | -2.286 | 3.436 | 68.67 |
| Cavallo et al. (2024) | 119.062 | -30.356 | 0.206 | – | – | – |
| Hunt & Reffert (2024) | 119.065 | -30.369 | 0.217 | -2.286 | 3.436 | 68.67 |
| Almeida et al. (2025) | 119.06 | -30.363 | – | – | – | – |
| UCC | 119.066 | -30.369 | 0.209 | -2.292 | 3.441 | 68.699 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.569, Dist=3117.0, Age=8.121 |
| Kharchenko et al. (2013) | E(B-V)=0.562, d=2910.0, logt=8.055 |
| Kharchenko et al. (2016) | E(B-V)=0.562, d=2910.0, logt=8.055 |
| Loktin & Popova (2017) | E(B-V)=0.556, Dist=3188, logt=8.149 |
| Cantat-Gaudin et al. (2018) | dmode=4842.4 |
| Soubiran et al. (2018) | dmode=4842.4 |
| Cantat-Gaudin et al. (2020) | AVNN=1.8, DistPc=4341.0, AgeNN=8.29 |
| Dias et al. (2021) | Av=2.231, Dist=3670, logage=7.941, [Fe/H]=-0.103 |
| Just et al. (2023) | logt=8.055, logmt=2.428 |
| Hunt & Reffert (2023) | AV50=2.121, diffAV50=1.136, MOD50=13.023, logAge50=8.308 |
| Cavallo et al. (2024) | AV50=2.39, dMod50=12.79, logAge50=8.27, [Fe/H]50=-0.12 |
| Hunt & Reffert (2024) | MassJ=661.380, MassTot=698.013 |
| Almeida et al. (2025) | AV=2.231, Dist=3670, logAge=7.941, MassRk=425.6 |
Search coordinates in Bayestar19