NGC 1520
0.15
UTI
0.0
CN
0.0
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
9.3 [arcmin]
- CN 0.0 Sparse
- Cdens 0.0 Very loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
NGC 1520 is a sparse, very loose object of high C3 quality. Its parallax locates it at a very large* distance, well below the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 9 years.
(*): The parallax distance estimate (~24.63 kpc) differs significantly from the median photometric distance (~0.94 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.
Close
Low extinction
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 59.521 | -76.762 | 0.041 | 1.793 | -0.437 | â |
| Loktin & Popova | 2017 | 59.46 | -76.794 | â | 3.575 | 5.339 | â |
| Dias et al. | 2002 | 59.462 | -76.795 | â | 4.39 | 3.83 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Loktin & Popova | 2017 | 1.09 | 0.64 | â | 3631 | â | â | â | â |
| Dias et al. | 2002 | 0.78 | 0.19 | â | 1995 | â | â | â | â |
Cantat-Gaudin et al. (2020)
Flagged as non-existent in the Revised NGC; included in some catalogues with estimated parameters but generally considered a remnant or non-physical object. More details in Appendix A of the article.