Alessi 19
(LeDrew 5; MWSC 2887)
Summary
Alessi 19 is a rich, very dense object of very high C3 quality. It is located at a close distance from the Sun, above the mid-plane. It is very well-studied in the literature.
This object shares a small percentage of members with a later reported entry.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 274.617 | 12.167 | – | 0.42 | -6.56 | 7.73 |
| Alessi et al. (2003) | 274.6 | 12.025 | – | 0.4 | -6.6 | – |
| Piskunov et al. (2007) | 274.766 | 12.177 | – | – | – | – |
| Piskunov et al. (2008) | 274.766 | 12.177 | – | – | – | – |
| Kharchenko et al. (2012) | 274.782 | 12.195 | – | 1.04 | -6.35 | – |
| Loktin & Popova (2017) | 274.62 | 12.167 | – | 0.42 | -6.56 | -5.1 |
| Cantat-Gaudin et al. (2018) | 274.741 | 12.311 | 1.71 | -1.005 | -7.073 | – |
| Bica et al. (2019) | 274.734 | 12.203 | – | – | – | – |
| Soubiran et al. (2018) | 274.741 | 12.311 | – | – | – | -4.51 |
| Bossini et al. (2019) | 274.741 | 12.311 | – | – | – | – |
| Cantat-Gaudin et al. (2020) | 274.741 | 12.311 | 1.71 | -1.005 | -7.073 | – |
| Dias et al. (2021) | 274.817 | 12.504 | 1.713 | -1.012 | -7.051 | -47.055 |
| He et al. (2022) | 274.666 | 11.976 | 1.691 | -1.0 | -7.18 | – |
| Hunt & Reffert (2023) | 274.534 | 11.897 | 1.709 | -1.009 | -7.074 | -7.866 |
| Cavallo et al. (2024) | 274.845 | 12.418 | 1.71 | – | – | – |
| Celli et al. (2024) | 274.741 | 12.311 | – | – | – | – |
| Hunt & Reffert (2024) | 274.534 | 11.897 | 1.709 | -1.009 | -7.074 | -7.866 |
| Alfonso et al. (2024) | 274.827 | 12.267 | 1.676 | -1.007 | -7.063 | – |
| Almeida et al. (2025) | 274.817 | 12.504 | – | – | – | – |
| UCC | 274.775 | 12.228 | 1.708 | -0.987 | -7.107 | -8.352 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.04, Dist=550.0, Age=8.0 |
| Alessi et al. (2003) | E(B-V)=0.03, d_pc=550.0, logt=8.2 |
| Piskunov et al. (2007) | E(B-V)=0.04, Dist=550, logt=8.05, logM=2.801 |
| Piskunov et al. (2008) | E(B-V)=0.04, Dist=550, logt=8.05, logM=3.117, logMA=3.08 |
| Kharchenko et al. (2012) | e_bv=0.04, distance=550, log_age=7.9 |
| Loktin & Popova (2017) | E(B-V)=0.04, Dist=447, logt=8.0 |
| Cantat-Gaudin et al. (2018) | dmode=575.0 |
| Soubiran et al. (2018) | dmode=575.0 |
| Bossini et al. (2019) | AV=0.158, Dist=8.779, logA=7.38, Fe/H=0.0 |
| Cantat-Gaudin et al. (2020) | AVNN=0.31, DistPc=573.0, AgeNN=7.41 |
| Dias et al. (2021) | Av=0.406, Dist=573, logage=7.763, [Fe/H]=0.129 |
| He et al. (2022) | A0=0.3, logAge=7.25 |
| Hunt & Reffert (2023) | AV50=0.342, diffAV50=0.948, MOD50=8.764, logAge50=7.563 |
| Cavallo et al. (2024) | AV50=0.63, dMod50=8.99, logAge50=7.24, [Fe/H]50=-0.03 |
| Celli et al. (2024) | Age=25.7, Mc=125.9 |
| Hunt & Reffert (2024) | MassJ=73.2788, MassTot=205.206 |
| Alfonso et al. (2024) | AV=0.30966, MOD=8.78994, logAge=7.65968, Z=0.12887 |
| Almeida et al. (2025) | AV=0.406, Dist=573, logAge=7.763, MassRk=158.8 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| OC 0068 | 23.7 | 274.55 | 11.88 | 1.7 | -0.96 | -7.18 | -5.8 | 0.0 |