Trumpler 18
(FoF 1526)
Summary
Trumpler 18 is a rich, very dense object of high C3 quality. It is located at a relatively close distance from the Sun, near the mid-plane. It is very well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dambis (1999) | 167.867 | -60.667 | – | – | – | – |
| Dias et al. (2002) | 167.867 | -60.667 | – | -4.07 | -0.88 | -20.0 |
| Piskunov et al. (2008) | 167.877 | -60.664 | – | – | – | – |
| Kharchenko et al. (2012) | 167.895 | -60.665 | – | -8.9 | 0.6 | – |
| Loktin & Popova (2017) | 167.865 | -60.667 | – | -7.22 | 2.13 | -17.4 |
| Cantat-Gaudin et al. (2018) | 167.826 | -60.656 | 0.624 | -7.172 | 0.569 | – |
| Bossini et al. (2019) | 167.826 | -60.656 | – | – | – | – |
| Dias et al. (2019) | 167.867 | -60.667 | 0.633 | -7.168 | 0.583 | -4.6 |
| Liu & Pang (2019) | 167.803 | -60.639 | 0.63 | -7.146 | 0.561 | – |
| Cantat-Gaudin et al. (2020) | 167.826 | -60.656 | 0.624 | -7.172 | 0.569 | – |
| Dias et al. (2021) | 167.832 | -60.652 | 0.622 | -7.165 | 0.571 | – |
| Rain et al. (2021) | 167.826 | -60.656 | 0.624 | -7.172 | 0.569 | – |
| Jaehnig et al. (2021) | 167.827 | -60.655 | 0.663 | -7.161 | 0.567 | – |
| Tarricq et al. (2022) | 167.833 | -60.657 | 0.664 | -7.137 | 0.612 | – |
| Hunt & Reffert (2023) | 167.826 | -60.63 | 0.654 | -7.138 | 0.623 | 40.181 |
| Cavallo et al. (2024) | 167.844 | -60.655 | 0.655 | – | – | – |
| Hunt & Reffert (2024) | 167.826 | -60.63 | 0.654 | -7.138 | 0.623 | 40.181 |
| Almeida et al. (2025) | 167.832 | -60.652 | – | – | – | – |
| UCC | 167.83 | -60.637 | 0.65 | -7.147 | 0.609 | -8.602 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dambis (1999) | E_B-V_=0.358, DM0=11.5, log_age_=7.3 |
| Dias et al. (2002) | E(B-V)=0.315, Dist=1358.0, Age=7.194 |
| Piskunov et al. (2008) | E(B-V)=0.31, Dist=1358, logt=7.77, logMA=2.316 |
| Kharchenko et al. (2012) | e_bv=0.266, distance=1422, log_age=7.69 |
| Loktin & Popova (2017) | E(B-V)=0.314, Dist=1359, logt=7.2 |
| Cantat-Gaudin et al. (2018) | dmode=1531.1 |
| Bossini et al. (2019) | AV=0.908, Dist=11.085, logA=7.665, Fe/H=0.0 |
| Dias et al. (2019) | E(B-V)=0.23, Dist=1553, logAge=7.679, Z=0.017 |
| Liu & Pang (2019) | Age=0.034, Z=-0.25 |
| Cantat-Gaudin et al. (2020) | AVNN=0.76, DistPc=1523.0, AgeNN=7.68 |
| Dias et al. (2021) | Av=0.899, Dist=1486, logage=7.932, [Fe/H]=0.155 |
| Rain et al. (2021) | E(B-V)=0.31, Dist=1531.1, log(Age)=7.19, NBSS=0 |
| Jaehnig et al. (2021) | dmode=1.501 |
| Tarricq et al. (2022) | Dist=1458, logAgeNN=7.76 |
| Hunt & Reffert (2023) | AV50=0.687, diffAV50=0.963, MOD50=10.808, logAge50=8.007 |
| Cavallo et al. (2024) | AV50=0.94, dMod50=10.73, logAge50=7.96, [Fe/H]50=-0.01 |
| Hunt & Reffert (2024) | MassJ=951.428, MassTot=960.949 |
| Almeida et al. (2025) | AV=0.899, Dist=1486, logAge=7.932, MassRk=180.8 |
Search coordinates in Bayestar19