Theia 1079
0.37
UTI
0.5
CN
0.35
Cdens
0.75
CC3
0.13
Clit
1.0
Cdup
Nm (P>50%)
50
Core radius and density
2.0 [pc], 1.8 [pc-2]
- CN 0.5 Moderately populated
- Cdens 0.35 Loose
- CC3 0.75 High quality
- Clit 0.13 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 1079 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.
Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 124.343 | -42.574 | 0.666 | -4.772 | 5.145 | 38.629 |
| Liu et al. | 2025 | 124.33 | -42.54 | 0.66 | -4.77 | 5.15 | 38.65 |
| Hunt & Reffert | 2024 | 124.328 | -42.54 | 0.662 | -4.771 | 5.149 | 38.65 |
| Cavallo et al. | 2024 | 124.403 | -42.597 | 0.664 | â | â | â |
| Hunt & Reffert | 2023 | 124.328 | -42.54 | 0.662 | -4.771 | 5.149 | 38.65 |
| He et al. | 2022 | 124.568 | -41.852 | 1.241 | -4.74 | 10.281 | â |
| Kounkel & Covey | 2019 | 124.67 | -41.577 | 1.248 | â | â | 31.991 |
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 | 1.39 | 0.91 | 1.66 | 13 | 0.230 | 238 | â | â |
| Liu et al. | 2025 | 2.27 | 0.46 | â | 14 | â | â | â | â |
| Hunt & Reffert | 2024 | 1.39 | 1.11 | 1.66 | 10 | â | 238(1) | â | â |
| Cavallo et al. | 2024 | 1.53 | 0.87 | â | 12 | 0.230 | â | â | â |
| Hunt & Reffert | 2023 | 1.39 | 1.11 | 1.66 | 10 | â | â | â | â |
| He et al. | 2022 | â | 0.95 | â | 112 | â | â | â | â |
| Kounkel & Covey | 2019 | 0.80 | 0.49 | â | 723 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as primordial binary cluster 354 along with Majaess_99, and of multiple system 62 along with Majaess_99 and HSC_2091.
Palma et al. (2025)
Part of multiple system G213, along with OC_0471, CWNU_339, Majaess_99 and HSC_2091.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).