NGC 6554
(MWSC 2821)
0.50
UTI
0.27
CN
0.63
Cdens
0.75
CC3
0.44
Clit
1.0
Cdup
Radius (P>50% members)
6.9 [arcmin]
- CN 0.27 Poorly populated
- Cdens 0.63 Moderately dense
- CC3 0.75 High quality
- Clit 0.44 Poorly studied
- Cdup 1.0 Unique
Overview
NGC 6554 is a poorly populated, moderately dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly studied in the literature.
Relatively close
Moderate extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 272.337 | -18.399 | 0.683 | -0.834 | -1.239 | -30.068 |
| Hunt & Reffert | 2024 | 272.332 | -18.395 | 0.677 | -0.833 | -1.292 | -30.064 |
| Cavallo et al. | 2024 | 272.338 | -18.365 | 0.675 | â | â | â |
| Hunt & Reffert | 2023 | 272.332 | -18.395 | 0.677 | -0.833 | -1.292 | -30.064 |
| Just et al. | 2023 | 272.223 | -18.444 | â | â | â | â |
| Kharchenko et al. | 2016 | 272.223 | -18.444 | â | â | â | â |
| Dias et al. | 2014 | 272.246 | -18.435 | â | -0.56 | -1.5 | 15.0 |
| Kharchenko et al. | 2013 | 272.23 | -18.443 | â | 1.27 | -3.05 | 15.0 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 177* | â | â |
| Cavallo et al. | 2024 | 1.36 | 1.68 | â | 30 | 0.040 | â | â | â |
| Hunt & Reffert | 2023 | 1.41 | 1.58 | 1.17 | 22 | â | â | â | â |
| Just et al. | 2023 | â | â | â | 417 | â | 955 | â | â |
| Kharchenko et al. | 2016 | 1.77 | 2.45 | â | 417 | â | â | â | â |
| Kharchenko et al. | 2013 | 1.77 | 2.45 | â | 417 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Cantat-Gaudin et al. (2020)
Marked non-existent; searched for unsuccessfully in several studies despite catalogue entries. More details in Appendix A of the article.