QC 1
0.09
UTI
0.69
CN
1.0
Cdens
1.0
CC3
0.25
Clit
0.15
Cdup
Radius (P>50% members)
5.0 [arcmin]
- CN 0.69 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.25 Poorly studied
- Cdup 0.15 Likely duplicate
Overview
QC 1 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.
â ī¸ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.
Relatively close
Moderate extinction
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 305.11 | 39.87 | 0.775 | -2.292 | -3.512 | -1.698 |
| Zhang et al. | 2024 | 305.104 | 39.869 | â | â | â | â |
| Hunt & Reffert | 2024 | 305.104 | 39.869 | 0.786 | -2.284 | -3.547 | 0.618 |
| Cavallo et al. | 2024 | 305.243 | 39.831 | 0.779 | â | â | â |
| Hunt & Reffert | 2023 | 305.104 | 39.869 | 0.786 | -2.284 | -3.547 | 0.618 |
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 | -0.045* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 345* | â | â |
| Cavallo et al. | 2024 | 1.32 | 1.82 | â | 12 | 0.560 | â | â | â |
| Hunt & Reffert | 2023 | 1.24 | 1.83 | 2.31 | 6 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.