NGC 1027
(MWSC 225; FoF 2187)
Summary
NGC 1027 is a very rich, very dense object of high C3 quality. It is located at a relatively 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) | 40.679 | 61.634 | – | -2.46 | 0.95 | 15.63 |
| Chen et al. (2003) | 40.725 | 61.555 | – | 0.76 | 0.35 | 15.0 |
| Kharchenko et al. (2003) | 40.69 | 61.62 | – | 0.48 | 3.85 | – |
| Kharchenko et al. (2005) | 40.66 | 61.63 | – | -2.42 | 1.41 | 15.0 |
| Piskunov et al. (2007) | 40.654 | 61.626 | – | – | – | – |
| Kharchenko et al. (2007) | 40.66 | 61.6 | – | 0.24 | – | 15.0 |
| Piskunov et al. (2008) | 40.654 | 61.626 | – | – | – | – |
| Kharchenko et al. (2012) | 40.665 | 61.62 | – | -2.22 | -0.83 | 15.0 |
| Kharchenko et al. (2013) | 40.665 | 61.62 | – | -2.22 | -0.83 | 15.0 |
| Kharchenko et al. (2016) | 40.652 | 61.618 | – | – | – | – |
| Loktin & Popova (2017) | 40.68 | 61.634 | – | -1.922 | -1.944 | 15.0 |
| Cantat-Gaudin et al. (2018) | 40.677 | 61.616 | 0.882 | -1.753 | 2.09 | – |
| Soubiran et al. (2018) | 40.677 | 61.616 | – | – | – | -4.06 |
| Liu & Pang (2019) | 40.654 | 61.613 | 0.887 | -1.735 | 2.111 | – |
| Cantat-Gaudin et al. (2020) | 40.677 | 61.616 | 0.882 | -1.753 | 2.09 | – |
| Dias et al. (2021) | 40.658 | 61.608 | 0.877 | -1.752 | 2.116 | -30.862 |
| Rain et al. (2021) | 40.677 | 61.616 | 0.882 | -1.753 | 2.09 | – |
| Jaehnig et al. (2021) | 40.709 | 61.612 | 0.919 | -1.748 | 2.112 | – |
| Tarricq et al. (2022) | 40.738 | 61.624 | 0.904 | -1.79 | 2.034 | – |
| He et al. (2022) | 40.657 | 61.615 | 0.889 | -1.782 | 2.032 | – |
| Just et al. (2023) | 40.652 | 61.618 | – | – | – | – |
| Hunt & Reffert (2023) | 40.652 | 61.623 | 0.888 | -1.789 | 2.04 | -43.832 |
| Cavallo et al. (2024) | 40.675 | 61.616 | 0.887 | – | – | – |
| Hunt & Reffert (2024) | 40.652 | 61.623 | 0.888 | -1.789 | 2.04 | -43.832 |
| Almeida et al. (2025) | 40.658 | 61.608 | – | – | – | – |
| UCC | 40.676 | 61.617 | 0.883 | -1.786 | 2.032 | -45.071 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.41, Dist=1030.0, Age=8.4 |
| Chen et al. (2003) | HDis=772, Age=0.15 |
| Kharchenko et al. (2003) | E(B-V)=0.4, Dist=1000 |
| Kharchenko et al. (2005) | E(B-V)=0.33, Dist=772, logt=8.55 |
| Piskunov et al. (2007) | E(B-V)=0.33, Dist=772, logt=8.55, logM=1.554 |
| Piskunov et al. (2008) | E(B-V)=0.33, Dist=772, logt=8.55, logM=2.011, logMA=2.035 |
| Kharchenko et al. (2012) | E(B-V)=0.25, d=950.0, logt=8.55 |
| Kharchenko et al. (2013) | E(B-V)=0.25, d=950.0, logt=8.55 |
| Kharchenko et al. (2016) | E(B-V)=0.25, d=950.0, logt=8.55 |
| Loktin & Popova (2017) | E(B-V)=0.323, Dist=800, logt=8.2 |
| Cantat-Gaudin et al. (2018) | dmode=1097.8 |
| Soubiran et al. (2018) | dmode=1097.8 |
| Liu & Pang (2019) | Age=0.065, Z=0.5 |
| Cantat-Gaudin et al. (2020) | AVNN=1.01, DistPc=1125.0, AgeNN=8.29 |
| Dias et al. (2021) | Av=1.397, Dist=1041, logage=7.956, [Fe/H]=0.036 |
| Rain et al. (2021) | E(B-V)=0.41, Dist=1097.8, log(Age)=8.4, NBSS=0 |
| Jaehnig et al. (2021) | dmode=1.09 |
| Tarricq et al. (2022) | Dist=1096, logAgeNN=8.33 |
| He et al. (2022) | A0=1.5, logAge=7.75 |
| Just et al. (2023) | logt=8.55, logmt=1.729 |
| Hunt & Reffert (2023) | AV50=1.235, diffAV50=0.852, MOD50=10.149, logAge50=8.056 |
| Cavallo et al. (2024) | AV50=1.46, dMod50=10.27, logAge50=8.1, [Fe/H]50=0.07 |
| Hunt & Reffert (2024) | MassJ=1490.57, MassTot=1501.06 |
| Almeida et al. (2025) | AV=1.397, Dist=1041, logAge=7.956, MassRk=1340.6 |
Search coordinates in Bayestar19