Trumpler 12
(Collinder 217; VDBH 89; OCL 803; vdBergh-Hagen 89; ESO 127 07; FSR 1537; MWSC 1763; FoF 63)
Summary
Trumpler 12 is a rich, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, below 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) | 151.621 | -60.3 | – | -3.82 | 1.75 | – |
| Piskunov et al. (2008) | 151.606 | -60.297 | – | – | – | – |
| Kharchenko et al. (2012) | 151.635 | -60.3 | – | -9.23 | 3.05 | – |
| Cantat-Gaudin et al. (2018) | 151.621 | -60.29 | 0.253 | -6.913 | 4.463 | – |
| Bica et al. (2019) | 151.618 | -60.289 | – | – | – | – |
| Soubiran et al. (2018) | 151.621 | -60.29 | – | – | – | 36.74 |
| Bossini et al. (2019) | 151.621 | -60.29 | – | – | – | – |
| Liu & Pang (2019) | 151.62 | -60.296 | 0.257 | -6.886 | 4.404 | – |
| Cantat-Gaudin et al. (2020) | 151.621 | -60.29 | 0.253 | -6.913 | 4.463 | – |
| Dias et al. (2021) | 151.622 | -60.29 | 0.255 | -6.916 | 4.467 | 33.545 |
| Hunt & Reffert (2023) | 151.624 | -60.295 | 0.273 | -6.891 | 4.471 | 24.729 |
| Cavallo et al. (2024) | 151.616 | -60.289 | 0.27 | – | – | – |
| Hunt & Reffert (2024) | 151.624 | -60.295 | 0.273 | -6.891 | 4.471 | 24.729 |
| Almeida et al. (2025) | 151.622 | -60.29 | – | – | – | – |
| Hu & Soubiran (2025) | 151.616 | -60.289 | – | – | – | – |
| UCC | 151.624 | -60.29 | 0.267 | -6.898 | 4.468 | 23.179 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.05, Dist=1300.0, Age=8.81 |
| Piskunov et al. (2008) | E(B-V)=0.05, Dist=1300, logt=8.81, logMA=2.109 |
| Kharchenko et al. (2012) | e_bv=0.05, distance=1435, log_age=9.205 |
| Cantat-Gaudin et al. (2018) | dmode=3547.5 |
| Soubiran et al. (2018) | dmode=3547.5 |
| Bossini et al. (2019) | AV=0.567, Dist=12.567, logA=8.898, Fe/H=0.0 |
| Liu & Pang (2019) | Age=0.955, Z=0.0 |
| Cantat-Gaudin et al. (2020) | AVNN=0.49, DistPc=3307.0, AgeNN=8.82 |
| Dias et al. (2021) | Av=0.59, Dist=3208, logage=8.922, [Fe/H]=0.053 |
| Hunt & Reffert (2023) | AV50=0.396, diffAV50=0.919, MOD50=12.561, logAge50=8.937 |
| Cavallo et al. (2024) | AV50=0.84, dMod50=11.95, logAge50=9.08, [Fe/H]50=-0.42 |
| Hunt & Reffert (2024) | MassJ=1884.31, MassTot=1914.83 |
| Almeida et al. (2025) | AV=0.59, Dist=3208, logAge=8.922, MassRk=962.7 |
| Hu & Soubiran (2025) | MA22=-0.3, MA23f=-0.36, MA23g=-0.08, MZ23=-0.35, MK24=-0.34, MF24=-0.29 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| OC 0538 | 16.2 | 151.64 | -60.28 | 0.28 | -6.9 | 4.49 | 24.17 | 0.0 |