Gaia 1
(Siriusly)
Summary
Gaia 1 is a very rich, very dense object of high C3 quality. It is located at a large distance from the Sun, well below the mid-plane. It is poorly studied in the literature.
This object shares a small percentage of members with 3 later reported entries.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Bica et al. (2019) | 101.468 | -16.753 | – | – | – | – |
| Cantat-Gaudin et al. (2020) | 101.474 | -16.733 | 0.145 | -0.079 | 1.249 | – |
| Hunt & Reffert (2023) | 101.467 | -16.74 | 0.167 | -0.041 | 1.229 | 59.565 |
| Cavallo et al. (2024) | 101.471 | -16.73 | 0.164 | – | – | – |
| Hunt & Reffert (2024) | 101.467 | -16.74 | 0.167 | -0.041 | 1.229 | 59.565 |
| Hu & Soubiran (2025) | 101.471 | -16.73 | – | – | – | – |
| UCC | 101.473 | -16.735 | 0.168 | -0.048 | 1.241 | 56.928 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Cantat-Gaudin et al. (2020) | AVNN=0.59, DistPc=6460.0, AgeNN=9.5 |
| Hunt & Reffert (2023) | AV50=1.686, diffAV50=2.093, MOD50=13.434, logAge50=9.124 |
| Cavallo et al. (2024) | AV50=1.39, dMod50=13.2, logAge50=9.59, [Fe/H]50=-0.35 |
| Hunt & Reffert (2024) | MassJ=6010.48, MassTot=6545.59 |
| Hu & Soubiran (2025) | MA22=-0.24, MA23f=-0.46, MA23g=-0.3, MZ23=-0.43, MK24=-0.39, MF24=-0.4 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| OC 0384 | 13.4 | 101.47 | -16.73 | 0.17 | -0.05 | 1.25 | 56.33 | 0.0 |
| OC 0386 | 7.6 | 101.47 | -16.75 | 0.18 | -0.04 | 1.24 | 56.92 | 0.0 |
| OC 0385 | 4.9 | 101.47 | -16.75 | 0.19 | -0.05 | 1.24 | 55.88 | 0.0 |