Pismis 23

(MWSC 2399)

0.78 UTI

0.75

C_N

1.0

C_dens

0.75

C_C3

0.7

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 103

Radius (P>50% members) 0.7 [arcmin]

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.7 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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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 parameter (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~5.33 kpc) differs significantly from the median photometric distance (~3.79 kpc).

Distant Very high extinction Massive Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Wood sample.

Data

🔍 Search references for Pismis 23 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	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	–	–	–
Hunt & Reffert	2023	245.992	-48.893	0.181	-2.718	-3.334	-38.085
Just et al.	2023	245.979	-48.894	–	–	–	–
Cantat-Gaudin et al.	2020	245.99	-48.891	0.166	-2.679	-3.209	–
Cantat-Gaudin & Anders	2020	245.99	-48.891	0.166	-2.679	-3.209	–
Cantat-Gaudin et al.	2018	245.99	-48.891	0.166	-2.679	-3.209	–
Kharchenko et al.	2016	245.979	-48.894	–	–	–	–
Dias et al.	2014	245.992	-48.892	–	-5.39	-3.33	–
Kharchenko et al.	2013	245.991	-48.895	–	-7.45	1.19	–
van den Bergh	2006	245.992	-48.892	–	–	–	–
Dias et al.	2002	245.992	-48.892	–	-5.51	-3.42	–

💡 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	–	–	–	–	–	4613*	–	–
Cavallo et al.	2024	5.40	5.42	–	4	0.160	–	–	–
Hunt & Reffert	2023	4.75	5.45	2.81	514	–	–	–	–
Just et al.	2023	–	–	–	367	–	78	–	–
Cantat-Gaudin & Anders	2020	5.13	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	5.13	–	–	–	–	–	–	–
Kharchenko et al.	2016	2.82	4.52	–	367	–	–	–	–
Kharchenko et al.	2013	2.82	4.52	–	367	–	–	–	–
van den Bergh	2006	2.60	6.20	–	302	–	–	–	–
Dias et al.	2002	2.60	6.20	–	302	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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