Theia 5504
0.04
UTI
0.0
CN
0.07
Cdens
0.12
CC3
0.0
Clit
0.96
Cdup
Radius (P>50% members)
29.5 [arcmin]
- CN 0.0 Sparse
- Cdens 0.07 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 0.96 Unique
Overview
Theia 5504 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=0.96) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Close
Low extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 23.589 | 57.112 | 1.088 | 1.651 | -2.919 | -12.502 |
| Zhang et al. | 2024 | 23.583 | 57.255 | â | â | â | â |
| Cavallo et al. | 2024 | 22.567 | 57.076 | 1.094 | â | â | â |
| Hunt & Reffert | 2023 | 23.583 | 57.255 | 1.089 | 1.601 | -2.969 | -15.482 |
đĄ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | â | â | â | â | -0.043* | â | â | â |
| Cavallo et al. | 2024 | 0.90 | 0.80 | â | 269 | 0.050 | â | â | â |
| Hunt & Reffert | 2023 | 0.87 | 0.58 | 1.02 | 162 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.