Pismis 23
(MWSC 2399)
0.69
UTI
0.75
CN
1.0
Cdens
0.75
CC3
0.48
Clit
1.0
Cdup
Nm (P>50%)
103
Core radius and density
1.1 [pc], 12 [pc-2]
- CN 0.75 Rich
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.48 Poorly 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
Pismis 23 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, near the mid-plane, affected by very high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is poorly studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 245.991 | -48.892 | 0.188 | -2.652 | -3.26 | -68.591 |
| Hunt & Reffert | 2024 | 245.992 | -48.893 | 0.181 | -2.718 | -3.334 | -38.085 |
| Cavallo et al. | 2024 | 245.979 | -48.892 | 0.185 | â | â | â |
| Hunt & Reffert | 2023 | 245.992 | -48.893 | 0.181 | -2.718 | -3.334 | -38.085 |
| Just et al. | 2023 | 245.979 | -48.894 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 245.99 | -48.891 | 0.166 | -2.679 | -3.209 | â |
| Cantat-Gaudin & Anders | 2020 | 245.99 | -48.891 | 0.166 | -2.679 | -3.209 | â |
| Cantat-Gaudin et al. | 2018 | 245.99 | -48.891 | 0.166 | -2.679 | -3.209 | â |
| Kharchenko et al. | 2016 | 245.979 | -48.894 | â | â | â | â |
| Dias et al. | 2014 | 245.992 | -48.892 | â | -5.39 | -3.33 | â |
| Kharchenko et al. | 2013 | 245.991 | -48.895 | â | -7.45 | 1.19 | â |
| Morales et al. | 2013 | 245.992 | -48.892 | â | â | â | â |
| Bukowiecki et al. | 2011 | 245.988 | -48.889 | â | â | â | â |
| van den Bergh | 2006 | 245.992 | -48.892 | â | â | â | â |
| Dias et al. | 2002 | 245.992 | -48.892 | â | -5.51 | -3.42 | â |
| Lynga | 1987 | 245.961 | -48.912 | â | â | â | â |
| van den Bergh & Hagen | 1975 | 245.025 | -48.8 | 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 | 4.045 | 5.42 | 2.81 | 302 | 0.160 | 2346 | â | â |
| Hunt & Reffert | 2024 | 4.75 | 5.44 | 2.81 | 514 | â | 4613(1) | â | â |
| Cavallo et al. | 2024 | 5.40 | 5.42 | â | 4 | 0.160 | â | â | â |
| Hunt & Reffert | 2023 | 4.75 | 5.45 | 2.81 | 514 | â | â | â | â |
| Just et al. | 2023 | â | â | â | 367 | â | 78 | â | â |
| Kounkel et al. | 2020 | 3.34 | 4.88 | â | 158 | â | â | â | â |
| Cantat-Gaudin & Anders | 2020 | 5.13 | â | â | â | â | â | â | â |
| Cantat-Gaudin et al. | 2018 | 5.13 | â | â | â | â | â | â | â |
| Kharchenko et al. | 2016 | 2.82 | 4.60 | â | 367 | â | â | â | â |
| Kharchenko et al. | 2013 | 2.82 | 4.60 | â | 367 | â | â | â | â |
| Morales et al. | 2013 | 2.60 | â | â | 300 | â | â | â | â |
| Bukowiecki et al. | 2011 | 4.81(1) | 4.73 | â | 251 | â | â | â | â |
| van den Bergh | 2006 | 2.60 | 6.31 | â | 302 | â | â | â | â |
| Dias et al. | 2002 | 2.60 | 6.31 | â | 302 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Wood sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.04 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.04 (50th percentile).
Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, with submm emission not associated with the cluster.