IC 1805
(MWSC 209)
Summary
IC 1805 is a rich, very dense object of high C3 quality. It is located at a moderate distance from the Sun, above the mid-plane. It is very well-studied in the literature.
This object shares a small percentage of members with 2 later reported entries.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dambis (1999) | 38.175 | 61.45 | – | – | – | – |
| Dias et al. (2002) | 38.175 | 61.45 | – | -2.1 | -1.57 | -45.0 |
| Chen et al. (2003) | 38.19 | 61.535 | – | -1.1 | -1.92 | -26.0 |
| Kharchenko et al. (2003) | 38.17 | 61.47 | – | -1.36 | -0.12 | – |
| Kharchenko et al. (2005) | 38.17 | 61.45 | – | -1.34 | -1.15 | -47.64 |
| Piskunov et al. (2007) | 38.157 | 61.444 | – | – | – | – |
| Kharchenko et al. (2007) | 38.17 | 61.45 | – | 0.22 | – | -47.88 |
| Piskunov et al. (2008) | 38.157 | 61.444 | – | – | – | – |
| Kharchenko et al. (2012) | 38.182 | 61.455 | – | -1.65 | -2.11 | -48.5 |
| Kharchenko et al. (2013) | 38.182 | 61.455 | – | -1.4 | -2.23 | -48.5 |
| Kharchenko et al. (2016) | 38.17 | 61.453 | – | – | – | – |
| Loktin & Popova (2017) | 38.175 | 61.451 | – | -1.613 | -2.383 | -48.5 |
| Cantat-Gaudin et al. (2018) | 38.21 | 61.471 | 0.449 | -0.702 | -0.669 | – |
| Soubiran et al. (2018) | 38.21 | 61.471 | – | – | – | -42.39 |
| Dias et al. (2019) | 38.208 | 61.638 | 0.449 | -0.702 | -0.669 | -40.93 |
| Cantat-Gaudin et al. (2020) | 38.21 | 61.471 | 0.449 | -0.702 | -0.669 | – |
| Dias et al. (2021) | 38.255 | 61.484 | 0.445 | -0.704 | -0.71 | – |
| Rain et al. (2021) | 38.21 | 61.471 | 0.449 | -0.702 | -0.669 | – |
| Jaehnig et al. (2021) | 38.211 | 61.494 | 0.48 | -0.751 | -0.446 | – |
| Just et al. (2023) | 38.17 | 61.453 | – | – | – | – |
| Hunt & Reffert (2023) | 38.194 | 61.47 | 0.449 | -0.716 | -0.591 | -9.639 |
| Cavallo et al. (2024) | 38.303 | 61.565 | 0.456 | – | – | – |
| Celli et al. (2024) | 38.21 | 61.471 | – | – | – | – |
| Hunt & Reffert (2024) | 38.194 | 61.47 | 0.449 | -0.716 | -0.591 | -9.639 |
| Almeida et al. (2025) | 38.255 | 61.484 | – | – | – | – |
| UCC | 38.197 | 61.47 | 0.455 | -0.729 | -0.717 | -38.438 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dambis (1999) | E_B-V_=0.775, DM0=11.43, log_age_=6.5 |
| Dias et al. (2002) | E(B-V)=0.87, Dist=2344.0, Age=6.48 |
| Chen et al. (2003) | HDis=1886, Age=0.0 |
| Kharchenko et al. (2003) | E(B-V)=0.71, Dist=1886 |
| Kharchenko et al. (2005) | E(B-V)=0.65, Dist=1886, logt=6.73 |
| Piskunov et al. (2007) | E(B-V)=0.65, Dist=1886, logt=6.73, logM=2.207 |
| Piskunov et al. (2008) | E(B-V)=0.65, Dist=1886, logt=6.73, logM=3.007, logMA=3.357 |
| Kharchenko et al. (2012) | E(B-V)=0.799, d=1700.0, logt=7.25 |
| Kharchenko et al. (2013) | E(B-V)=0.799, d=1700.0, logt=7.25 |
| Kharchenko et al. (2016) | E(B-V)=0.799, d=1700.0, logt=7.25 |
| Loktin & Popova (2017) | E(B-V)=0.813, Dist=1863, logt=6.843 |
| Cantat-Gaudin et al. (2018) | dmode=2090.6 |
| Soubiran et al. (2018) | dmode=2090.6 |
| Dias et al. (2019) | E(B-V)=0.73, Dist=2158, logAge=6.878, Z=0.019 |
| Cantat-Gaudin et al. (2020) | AVNN=2.22, DistPc=1964.0, AgeNN=6.88 |
| Dias et al. (2021) | Av=2.329, Dist=2187, logage=6.839, [Fe/H]=0.31 |
| Rain et al. (2021) | E(B-V)=0.87, Dist=2090.6, log(Age)=6.48, NBSS=0 |
| Jaehnig et al. (2021) | dmode=2.085 |
| Just et al. (2023) | logt=7.25, logmt=2.737 |
| Hunt & Reffert (2023) | AV50=2.403, diffAV50=2.462, MOD50=11.531, logAge50=6.584 |
| Cavallo et al. (2024) | AV50=2.41, dMod50=11.09, logAge50=6.97, [Fe/H]50=-0.06 |
| Celli et al. (2024) | Age=7.6, Mc=891.2 |
| Hunt & Reffert (2024) | MassJ=1636.54, MassTot=1703.58 |
| Almeida et al. (2025) | AV=2.329, Dist=2187, logAge=6.839, MassRk=814.1 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| OC 0248 | 15.8 | 38.21 | 61.47 | 0.46 | -0.78 | -0.74 | -42.45 | 0.0 |
| CWWDL 13950 | 2.4 | 37.97 | 61.18 | 0.44 | -0.78 | -0.26 | -18.56 | 0.06 |