Theia 713
0.08
UTI
0.0
CN
0.09
Cdens
0.25
CC3
0.03
Clit
1.0
Cdup
Nm (P>50%)
24
Core radius and density
1.2 [pc], 0.4 [pc-2]
- CN 0.0 Sparse
- Cdens 0.09 Very loose
- CC3 0.25 Low quality
- Clit 0.03 Rarely studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
Theia 713 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 7.442 | 68.42 | 2.105 | -6.213 | -4.718 | -21.724 |
| Cavallo et al. | 2024 | 5.983 | 68.376 | 2.112 | â | â | â |
| Hunt & Reffert | 2023 | 7.541 | 68.412 | 2.112 | -6.118 | -4.741 | -20.415 |
| Kounkel & Covey | 2019 | 10.109 | 67.056 | 2.203 | â | â | -11.723 |
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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 0.45 | 0.89 | 1.78 | 327 | -0.060 | â | â | â |
| Cavallo et al. | 2024 | 0.47 | 1.20 | â | 309 | -0.060 | â | â | â |
| Hunt & Reffert | 2023 | 0.45 | 0.89 | 1.78 | 327 | â | â | â | â |
| Kounkel & Covey | 2019 | 0.45 | 0.60 | â | 355 | â | â | â | â |
Palma et al. (2025)
Classified as optical pair P587, along with UPK_233.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).