Collinder 197

(FoF 2235)

0.95 UTI

1.0

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 523

Stellar density (N₅₀/rad) 162.3 [N/pc²]

C3 classification AB

C_N 1.0 Very rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Collinder 197 is a very rich, very dense object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is very well-studied in the literature.

Close Moderate extinction Near-solar metallicity Very young

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit. Silver sample.

Cavallo et al. (2024)
Silver sample.

Data

🔍 Search references for Collinder 197 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–	131.194	-41.278	1.037	-5.759	4.015	22.607
Almeida et al.	2025	131.216	-41.288	–	–	–	–
Alfonso et al.	2024	131.191	-41.284	1.012	-5.76	4.054	–
Hunt & Reffert	2024	131.215	-41.26	1.039	-5.736	4.075	20.114
Celli et al.	2024	131.202	-41.28	–	–	–	–
Cavallo et al.	2024	131.2	-41.275	1.041	–	–	–
Hunt & Reffert	2023	131.215	-41.26	1.039	-5.736	4.075	20.114
He et al.	2022	131.194	-41.284	1.044	-5.762	4.045	–
Dias et al.	2021	131.216	-41.288	1.026	-5.755	3.914	35.065
Cantat-Gaudin et al.	2020	131.202	-41.28	1.034	-5.808	3.933	–
Cantat-Gaudin & Anders	2020	131.202	-41.28	1.034	-5.808	3.933	–
Liu & Pang	2019	131.2	-41.297	1.024	-5.76	3.946	–
Dias et al.	2019	131.213	-41.233	1.029	-5.728	4.026	30.789
Soubiran et al.	2018	131.202	-41.28	–	–	–	35.82
Cantat-Gaudin et al.	2018	131.202	-41.28	1.034	-5.808	3.933	–
Loktin & Popova	2017	131.22	-41.233	–	-4.26	3.41	33.1
Dias et al.	2014	131.213	-41.233	–	-4.26	3.41	–
Gozha et al.	2012	131.213	-41.233	–	–	–	–
Kharchenko et al.	2007	131.22	-41.23	–	0.21	–	–
van den Bergh	2006	131.167	-41.277	–	–	–	–
Kharchenko et al.	2003	131.19	-41.42	–	-7.16	6.98	–
Chen et al.	2003	131.284	-41.464	–	-9.8	7.5	33.1
Dias et al.	2002	131.213	-41.233	–	-4.26	3.41	30.82
Dambis	1999	131.212	-41.233	–	–	–	–

💡 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–	0.84	1.71	2.27	10	0.065	491	–	–
Almeida et al.	2025	0.83	1.92	–	9	–	610	–	–
Alfonso et al.	2024	0.95	1.42	–	10	0.066	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	417⁽¹⁾	–	–
Celli et al.	2024	–	–	–	14	–	491	–	–
Cavallo et al.	2024	1.06	2.11	–	5	-0.020	–	–	–
Hunt & Reffert	2023	0.91	2.03	2.27	4	–	–	–	–
He et al.	2022	–	2.65	–	4	–	–	–	–
Dias et al.	2021	0.83	1.92	–	9	0.065	–	–	–
Cantat-Gaudin et al.	2020	0.95	1.42	–	14	–	–	–	–
Cantat-Gaudin & Anders	2020	0.94	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	7	0.500	–	–	–
Dias et al.	2019	0.59	1.46	–	13	-1.623	–	–	–
Soubiran et al.	2018	0.94	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	0.94	–	–	–	–	–	–	–
Loktin & Popova	2017	0.82	1.70	–	13	–	–	–	–
Gozha et al.	2012	0.84	–	–	13	–	–	–	–
van den Bergh	2006	0.84	1.71	–	13	–	–	–	–
Kharchenko et al.	2003	0.84	0.59	–	–	–	–	–	–
Chen et al.	2003	0.84	–	–	10	–	–	–	–
Dias et al.	2002	0.84	1.70	–	13	–	–	–	–
Dambis	1999	1.06	1.87	–	6	–	–	–	–

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

Visualization

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