Collinder 236

(MWSC 1872)

0.76 UTI

0.46

C_N

0.95

C_dens

1.0

C_C3

0.69

C_lit

1.0

C_dup

N₅₀ (P>50% members) 46

Stellar density (N₅₀/rad) 4.7 [N/pc²]

C3 classification AA

C_N 0.46 Poorly populated
C_dens 0.95 Very dense
C_C3 1.0 Very high quality
C_lit 0.69 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Collinder 236 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by low extinction. It is catalogued as a 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 (~3.24 kpc) differs significantly from the median photometric distance (~0.80 kpc).

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

Close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 236 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	99999–	164.121	-61.099	0.308	-6.562	2.428	2.414
Hunt & Reffert	2024	164.134	-61.093	0.309	-6.549	2.431	–
Cavallo et al.	2024	164.117	-61.106	0.309	–	–	–
Hunt & Reffert	2023	164.134	-61.093	0.309	-6.549	2.431	–
Just et al.	2023	164.334	-61.116	–	–	–	–
Kharchenko et al.	2016	164.334	-61.116	–	–	–	–
Dias et al.	2014	164.213	-61.117	–	-2.23	-2.31	18.32
Kharchenko et al.	2013	164.34	-61.12	–	-2.82	2.3	12.8
Piskunov et al.	2008	164.316	-61.107	–	–	–	–
Piskunov et al.	2007	164.316	-61.107	–	–	–	–
Kharchenko et al.	2005	164.32	-61.11	–	-3.57	3.02	–
Kharchenko et al.	2003	164.34	-61.1	–	-3.36	3.34	–
Dias et al.	2002	164.213	-61.117	–	-2.23	-2.31	18.32

💡 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]	B_frac	BSS
UCC	99999–	0.8	0.22	0.77	234	0.042	52	–	–
Hunt & Reffert	2024	–	–	–	–	–	202⁽¹⁾	–	–
Cavallo et al.	2024	3.05	1.10	–	132	0.030	–	–	–
Hunt & Reffert	2023	2.91	0.71	0.77	40	–	–	–	–
Just et al.	2023	–	–	–	282	–	43	–	–
Kharchenko et al.	2016	0.82	0.22	–	282	–	–	–	–
Kharchenko et al.	2013	0.82	0.22	–	282	0.042	–	–	–
Piskunov et al.	2008	0.80	0.22	–	234	–	60⁽¹⁾	–	–
Piskunov et al.	2007	0.80	0.22	–	234	–	13	–	–
Kharchenko et al.	2005	0.80	0.22	–	234	–	–	–	–
Kharchenko et al.	2003	0.77	0.06	–	–	–	–	–	–
Dias et al.	2002	0.80	0.22	–	234	0.042	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 509	54.3	164.12	-61.1	0.31	-6.57	2.41	–	0.04

💡 Note: The % column shows the percentage of members that Collinder 236 shares with each listed object.

Visualization

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