Haffner 21
(OCL 677; ESO 494 11; MWSC 1411; FoF 1425)
Summary
Haffner 21 is a moderately populated, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, above the mid-plane. It is very well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 120.287 | -27.217 | – | -5.01 | 3.38 | – |
| Kharchenko et al. (2012) | 120.278 | -27.213 | – | -4.69 | 1.62 | – |
| Loktin & Popova (2017) | 120.285 | -27.216 | – | -4.942 | 2.668 | – |
| Cantat-Gaudin et al. (2018) | 120.288 | -27.212 | 0.286 | -1.432 | 1.563 | – |
| Bica et al. (2019) | 120.288 | -27.204 | – | – | – | – |
| Bossini et al. (2019) | 120.288 | -27.212 | – | – | – | – |
| Liu & Pang (2019) | 120.283 | -27.205 | 0.27 | -1.719 | 1.907 | – |
| Cantat-Gaudin et al. (2020) | 120.288 | -27.212 | 0.286 | -1.432 | 1.563 | – |
| Dias et al. (2021) | 120.29 | -27.218 | 0.283 | -1.424 | 1.566 | – |
| Rain et al. (2021) | 120.288 | -27.212 | 0.286 | -1.432 | 1.563 | – |
| Jaehnig et al. (2021) | 120.286 | -27.209 | 0.327 | -1.434 | 1.564 | – |
| Hunt & Reffert (2023) | 120.29 | -27.211 | 0.282 | -1.432 | 1.6 | – |
| Cavallo et al. (2024) | 120.294 | -27.216 | 0.283 | – | – | – |
| Hunt & Reffert (2024) | 120.29 | -27.211 | 0.282 | -1.432 | 1.6 | – |
| Almeida et al. (2025) | 120.29 | -27.218 | – | – | – | – |
| UCC | 120.289 | -27.212 | 0.29 | -1.429 | 1.593 | – |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.106, Dist=2951.0, Age=7.92 |
| Kharchenko et al. (2012) | e_bv=0.208, distance=2436, log_age=8.625 |
| Loktin & Popova (2017) | E(B-V)=0.113, Dist=3065, logt=7.934 |
| Cantat-Gaudin et al. (2018) | dmode=3174.6 |
| Bossini et al. (2019) | AV=0.686, Dist=12.419, logA=8.478, Fe/H=0.0 |
| Liu & Pang (2019) | Age=0.562, Z=0.5 |
| Cantat-Gaudin et al. (2020) | AVNN=0.59, DistPc=3143.0, AgeNN=8.43 |
| Dias et al. (2021) | Av=0.848, Dist=2736, logage=8.457, [Fe/H]=-0.089 |
| Rain et al. (2021) | E(B-V)=0.22, Dist=3174.6, log(Age)=8.47, NBSS=0 |
| Jaehnig et al. (2021) | dmode=3.079 |
| Hunt & Reffert (2023) | AV50=0.443, diffAV50=0.677, MOD50=12.359, logAge50=8.478 |
| Cavallo et al. (2024) | AV50=0.85, dMod50=12.22, logAge50=8.57, [Fe/H]50=-0.06 |
| Hunt & Reffert (2024) | MassJ=475.377, MassTot=476.518 |
| Almeida et al. (2025) | AV=0.848, Dist=2736, logAge=8.457, MassRk=326.6 |
Search coordinates in Bayestar19