DBSB 64
(DBSB2003 64; MWSC 1941)
0.14
UTI
0.0
CN
0.09
Cdens
0.38
CC3
0.13
Clit
1.0
Cdup
Nm (P>50%)
21
Core radius and density
2.2 [pc], 0.4 [pc-2]
- CN 0.0 Sparse
- Cdens 0.09 Very loose
- CC3 0.38 Low 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
DBSB 64 is a sparse, very loose object of low C3 quality. Its parallax locates it at a close* distance, above the mid-plane, affected by low extinction. It is catalogued as a massive, 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.
(*): The parallax distance estimate (~0.93 kpc) differs significantly from the median photometric distance (~3.08 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 170.77 | -58.932 | 1.077 | -10.531 | 2.031 | -17.774 |
| Cavallo et al. | 2024 | 170.699 | -58.96 | 1.072 | â | â | â |
| Hunt & Reffert | 2023 | 170.973 | -58.92 | 1.073 | -10.502 | 2.07 | -21.983 |
| Just et al. | 2023 | 171.134 | -58.947 | â | â | â | â |
| Kharchenko et al. | 2016 | 171.134 | -58.947 | â | â | â | â |
| Kharchenko et al. | 2013 | 171.142 | -58.95 | â | -10.86 | 2.03 | â |
| Dutra et al. | 2003 | 171.168 | -58.936 | â | â | â | 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 3.075 | 0.86 | 0.79 | 2 | 0.040 | 4786 | â | â |
| Cavallo et al. | 2024 | 0.90 | 0.28 | â | 129 | 0.040 | â | â | â |
| Hunt & Reffert | 2023 | 0.90 | 0.13 | 0.79 | 104 | â | â | â | â |
| Just et al. | 2023 | â | â | â | 2 | â | 4786 | â | â |
| Kharchenko et al. | 2016 | 5.25 | 1.44 | â | 2 | â | â | â | â |
| Kharchenko et al. | 2013 | 5.25 | 1.44 | â | 2 | â | â | â | â |
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).
Dutra et al. (2003)
Classified as infrared cluster (IRC).