Alessi 8
(MWSC 2298)
Summary
Alessi 8 is a moderately populated, very dense object of 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.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 232.387 | -51.233 | – | -6.13 | -5.8 | – |
| Alessi et al. (2003) | 232.375 | -51.208 | – | -6.1 | -5.8 | – |
| Kharchenko et al. (2005) | 232.39 | -51.23 | – | -6.05 | -7.01 | – |
| Piskunov et al. (2007) | 232.384 | -51.224 | – | – | – | – |
| Piskunov et al. (2008) | 232.384 | -51.224 | – | – | – | – |
| Cantat-Gaudin et al. (2018) | 232.408 | -51.227 | 1.479 | -5.899 | -5.729 | – |
| Bica et al. (2019) | 232.393 | -51.232 | – | – | – | – |
| Soubiran et al. (2018) | 232.408 | -51.227 | – | – | – | -27.26 |
| Bossini et al. (2019) | 232.408 | -51.227 | – | – | – | – |
| Cantat-Gaudin et al. (2020) | 232.408 | -51.227 | 1.479 | -5.899 | -5.729 | – |
| Dias et al. (2021) | 232.493 | -51.196 | 1.479 | -5.887 | -5.736 | -26.868 |
| Tarricq et al. (2022) | 232.355 | -51.212 | 1.494 | -5.938 | -5.683 | – |
| He et al. (2022) | 232.276 | -51.289 | 1.494 | -6.029 | -5.684 | – |
| Hunt & Reffert (2023) | 232.298 | -51.312 | 1.482 | -6.016 | -5.702 | -32.548 |
| Cavallo et al. (2024) | 232.503 | -51.174 | 1.489 | – | – | – |
| Hunt & Reffert (2024) | 232.298 | -51.312 | 1.482 | -6.016 | -5.702 | -32.548 |
| Alfonso et al. (2024) | 232.42 | -51.18 | 1.434 | -5.866 | -5.633 | – |
| Almeida et al. (2025) | 232.493 | -51.196 | – | – | – | – |
| UCC | 232.399 | -51.219 | 1.491 | -5.942 | -5.715 | -29.546 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.09, Dist=575.0, Age=8.15 |
| Alessi et al. (2003) | E(B-V)=0.09, d_pc=570.0, logt=8.15 |
| Kharchenko et al. (2005) | E(B-V)=0.09, Dist=575, logt=7.92 |
| Piskunov et al. (2007) | E(B-V)=0.09, Dist=575, logt=7.92, logM=1.751 |
| Piskunov et al. (2008) | E(B-V)=0.09, Dist=575, logt=7.92, logM=2.245, logMA=1.997 |
| Cantat-Gaudin et al. (2018) | dmode=663.1 |
| Soubiran et al. (2018) | dmode=663.1 |
| Bossini et al. (2019) | AV=0.318, Dist=9.11, logA=8.137, Fe/H=0.0 |
| Cantat-Gaudin et al. (2020) | AVNN=0.19, DistPc=668.0, AgeNN=8.07 |
| Dias et al. (2021) | Av=0.384, Dist=671, logage=8.156, [Fe/H]=0.07 |
| Tarricq et al. (2022) | Dist=655, logAgeNN=8.09 |
| He et al. (2022) | A0=0.45, logAge=7.9 |
| Hunt & Reffert (2023) | AV50=0.269, diffAV50=0.616, MOD50=9.01, logAge50=8.003 |
| Cavallo et al. (2024) | AV50=0.57, dMod50=9.03, logAge50=8.01, [Fe/H]50=-0.02 |
| Hunt & Reffert (2024) | MassJ=70.7917, MassTot=154.670 |
| Alfonso et al. (2024) | AV=0.19070, MOD=9.11957, logAge=8.12083, Z=0.07033 |
| Almeida et al. (2025) | AV=0.384, Dist=671, logAge=8.156, MassRk=112.8 |
Search coordinates in Bayestar19