NGC 654
Summary
NGC 654 is a very rich, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, near the mid-plane. It is very well-studied in the literature.
This object shares a very small percentage of members with a later reported entry.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dambis (1999) | 26.0 | 61.885 | – | – | – | – |
| Dias et al. (2002) | 26.0 | 61.885 | – | -1.34 | -0.72 | -34.2 |
| Chen et al. (2003) | 26.019 | 61.84 | – | -1.34 | -0.72 | -33.8 |
| Piskunov et al. (2008) | 25.99 | 61.873 | – | – | – | – |
| Kharchenko et al. (2012) | 25.995 | 61.9 | – | 0.9 | -3.36 | – |
| Loktin & Popova (2017) | 25.995 | 61.885 | – | 0.143 | -0.81 | -38.8 |
| Cantat-Gaudin et al. (2018) | 26.008 | 61.883 | 0.313 | -1.086 | -0.265 | – |
| Cantat-Gaudin et al. (2020) | 26.008 | 61.883 | 0.313 | -1.086 | -0.265 | – |
| Dias et al. (2021) | 26.007 | 61.879 | 0.315 | -1.105 | -0.26 | – |
| Rain et al. (2021) | 26.008 | 61.883 | 0.313 | -1.086 | -0.265 | – |
| Jaehnig et al. (2021) | 26.011 | 61.886 | 0.344 | -1.093 | -0.266 | – |
| Hunt & Reffert (2023) | 26.001 | 61.888 | 0.325 | -1.147 | -0.325 | -20.61 |
| Cavallo et al. (2024) | 25.98 | 61.868 | 0.324 | – | – | – |
| Celli et al. (2024) | 26.008 | 61.883 | – | – | – | – |
| Hunt & Reffert (2024) | 26.001 | 61.888 | 0.325 | -1.147 | -0.325 | -20.61 |
| Almeida et al. (2025) | 26.007 | 61.879 | – | – | – | – |
| UCC | 26.005 | 61.886 | 0.323 | -1.137 | -0.32 | -30.49 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dambis (1999) | E_B-V_=0.935, DM0=11.95, log_age_=7.1 |
| Dias et al. (2002) | E(B-V)=0.82, Dist=2410.0, Age=7.0 |
| Chen et al. (2003) | HDis=2041, Age=0.01 |
| Piskunov et al. (2008) | E(B-V)=0.87, Dist=2041, logt=7.3, logMA=2.096 |
| Kharchenko et al. (2012) | e_bv=0.75, distance=1786, log_age=7.25 |
| Loktin & Popova (2017) | E(B-V)=0.865, Dist=2056, logt=7.151 |
| Cantat-Gaudin et al. (2018) | dmode=2923.7 |
| Cantat-Gaudin et al. (2020) | AVNN=2.29, DistPc=3125.0, AgeNN=6.99 |
| Dias et al. (2021) | Av=2.602, Dist=2516, logage=7.171, [Fe/H]=-0.1 |
| Rain et al. (2021) | E(B-V)=0.82, Dist=2923.7, log(Age)=7.0, NBSS=0 |
| Jaehnig et al. (2021) | dmode=2.892 |
| Hunt & Reffert (2023) | AV50=2.842, diffAV50=2.311, MOD50=12.246, logAge50=7.28 |
| Cavallo et al. (2024) | AV50=2.62, dMod50=12.48, logAge50=7.4, [Fe/H]50=0.76 |
| Celli et al. (2024) | Age=9.8, Mc=2547.7 |
| Hunt & Reffert (2024) | MassJ=3819.42, MassTot=3819.42 |
| Almeida et al. (2025) | AV=2.602, Dist=2516, logAge=7.171, MassRk=2207.3 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| CWWDL 8405 | 2.0 | 26.32 | 61.78 | 0.37 | -1.14 | -0.36 | – | 0.06 |