Collinder 97

(MWSC 892)

0.33 UTI

0.0

C_N

0.03

C_dens

0.38

C_C3

0.61

C_lit

1.0

C_dup

N₅₀ (P>50% members) 20

Stellar density (N₅₀/rad) 0.1 [N/pc²]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.38 Low quality
C_lit 0.61 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 97 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~8.11 kpc) differs significantly from the median photometric distance (~1.22 kpc).

Note: This object shares a significant percentage of members with 2 later reported entries. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.66 (50th percentile).

Ahumada & Lapasset (2007)
Cluster reddening from (1987JApA....8..219B).

Data

🔍 Search references for Collinder 97 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–	97.93	5.975	0.123	-0.193	0.208	25.491
Cavallo et al.	2024	97.937	5.943	0.133	–	–	–
Hunt & Reffert	2023	97.92	5.884	0.136	-0.181	0.184	–
Just et al.	2023	97.913	5.976	–	–	–	–
Dias et al.	2018	–	–	–	-0.2	-1.83	–
Dib et al.	2018	97.92	5.975	–	–	–	–
Loktin & Popova	2017	97.83	5.975	–	-0.235	-1.088	17.9
Sampedro et al.	2017	97.825	5.917	-1.75	-1.45	–	–
Joshi et al.	2016	97.92	5.975	–	–	–	–
Kharchenko et al.	2016	97.913	5.976	–	–	–	–
Dias et al.	2014	97.825	5.917	–	-1.62	-1.32	–
Kharchenko et al.	2013	97.92	5.975	–	-0.92	-2.18	17.9
Gozha et al.	2012	97.825	5.917	–	–	–	–
Piskunov et al.	2008	97.828	5.951	–	–	–	–
Kharchenko et al.	2007	97.83	5.92	–	0.3	–	17.88
Ahumada & Lapasset	2007	97.825	5.917	–	–	–	–
van den Bergh	2006	97.825	5.95	–	–	–	–
Kharchenko et al.	2005	97.83	5.95	–	-3.78	-2.03	17.5
Kharchenko et al.	2003	97.81	5.83	–	-1.77	-1.89	–
Dias et al.	2002	97.825	5.917	–	-1.62	-1.32	-14.7
Lynga	1987	97.824	5.915	–	–	–	–

💡 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–	1.22	0.55	2.15	209	0.120	91	–	0
Cavallo et al.	2024	4.55	2.27	–	138	0.120	–	–	–
Hunt & Reffert	2023	5.28	2.25	2.15	232	–	–	–	–
Just et al.	2023	–	–	–	251	–	45	–	–
Dib et al.	2018	1.26	–	–	251	–	–	–	–
Loktin & Popova	2017	1.22	0.55	–	37	–	–	–	–
Joshi et al.	2016	1.26	0.98	–	251	–	91	–	–
Kharchenko et al.	2016	1.26	0.98	–	251	–	–	–	–
Kharchenko et al.	2013	1.26	0.98	–	251	–	–	–	–
Gozha et al.	2012	0.63	–	–	100	–	91	–	–
Piskunov et al.	2008	0.50	0.22	–	209	–	–	–	–
Ahumada & Lapasset	2007	–	0.00	–	100	–	–	–	0
van den Bergh	2006	0.63	0.00	–	100	–	–	–	–
Kharchenko et al.	2005	0.50	0.22	–	209	–	–	–	–
Kharchenko et al.	2003	0.63	–	–	–	–	–	–	–
Dias et al.	2002	0.63	0.00	–	100	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 2937	56.0	97.93	5.87	0.14	-0.18	0.21	25.0	0.06
Teutsch 137	44.0	97.92	5.88	0.17	-0.33	0.27	30.37	0.17

💡 Note: The % column shows the percentage of members that Collinder 97 shares with each listed object.

Visualization

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