Collinder 92

(MWSC 850; OCL 504)

0.26 UTI

0.0

C_N

0.01

C_dens

0.38

C_C3

0.45

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 0.01 Very loose
C_C3 0.38 Low quality
C_lit 0.45 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Collinder 92 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very large^* distance, well below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~14.53 kpc) differs significantly from the median photometric distance (~2.83 kpc).

Relatively close Moderate extinction Massive Near-solar metallicity Old

Data

🔍 Search references for Collinder 92 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–	95.715	5.093	0.069	0.111	-0.289	94.768
He et al.	2023	95.726	5.069	0.149	0.2	-0.002	70.42
Just et al.	2023	95.723	5.101	–	–	–	–
Donor et al.	2020	95.73	5.1	–	-0.04	0.23	84.9
Bica et al.	2019	95.717	5.134	–	–	–	–
Loktin & Popova	2017	95.73	5.118	–	-0.67	-2.12	–
Kharchenko et al.	2016	95.723	5.101	–	–	–	–
Dias et al.	2014	95.725	5.117	–	-0.67	-2.12	–
Kharchenko et al.	2013	95.73	5.1	–	-1.58	-0.73	–

💡 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–	2.83	1.56	–	1396	-0.420	1117	–	–
He et al.	2023	5.13	1.50	–	158	–	–	–	–
Just et al.	2023	–	–	–	1396	–	1117	–	–
Donor et al.	2020	–	–	–	–	-0.420	–	–	–
Loktin & Popova	2017	2.99	0.90	–	2460	–	–	–	–
Kharchenko et al.	2016	2.67	1.62	–	1396	–	–	–	–
Kharchenko et al.	2013	2.67	1.62	–	1396	–	–	–	–

Visualization

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