Dolidze 31
(MWSC 2957)
0.17
UTI
0.0
CN
0.47
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
4.2 [arcmin]
- CN 0.0 Sparse
- Cdens 0.47 Loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Dolidze 31 is a sparse, loose object of low C3 quality. Its parallax locates it at a moderate* distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, very young cluster (see Parameters). It is rarely studied in the literature.
(*): The parallax distance estimate (~2.62 kpc) differs significantly from the median photometric distance (~5.16 kpc).
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.
Very distant
High extinction
Massive
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 278.749 | -6.859 | 0.381 | -1.708 | -3.507 | 69.166 |
| Just et al. | 2023 | 278.738 | -6.852 | â | â | â | â |
| Kharchenko et al. | 2016 | 278.738 | -6.852 | â | â | â | â |
| Kharchenko et al. | 2013 | 278.745 | -6.85 | â | 1.51 | -1.1 | â |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Just et al. | 2023 | â | â | â | 1 | â | 4539 | â | â |
| Kharchenko et al. | 2016 | 5.16 | 4.19 | â | 1 | â | â | â | â |
| Kharchenko et al. | 2013 | 5.16 | 4.19 | â | 1 | â | â | â | â |
Dias et al. (2002)
Asterism (Archinal, B. A. & Hynes, S. J. 2003)