NGC 5284

(MWSC 2162; ESO 133 04)

0.08 UTI

0.0

C_N

0.03

C_dens

0.12

C_C3

0.13

C_lit

1.0

C_dup

N_m (P>50%) 16

Core radius and density 4.9 [pc], 0.1 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.12 Very low quality
C_lit 0.13 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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NGC 5284 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a very young cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~4.59 kpc) differs significantly from the median photometric distance (~1.58 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Very young

Bica et al. (2019)
Web updates in DAML02, some were later removed (2003 to 2010).

Dias et al. (2002)
Asterism (Archinal, B. A. & Hynes, S. J. 2003); cat V3.5 (Jan 2016)

Data

🔍 Search references for NGC 5284 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–	206.715	-59.18	0.218	-6.811	-2.111	–
Just et al.	2023	206.591	-59.197	–	–	–	–
Bica et al.	2019	206.66	-59.186	–	–	–	–
Dib et al.	2018	206.602	-59.2	–	–	–	–
Joshi et al.	2016	206.602	-59.2	–	–	–	–
Kharchenko et al.	2016	206.591	-59.197	–	–	–	–
Kharchenko et al.	2013	206.602	-59.2	–	-8.7	1.7	–

💡 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–	1.58	1.58	–	10	–	343	–	–
Just et al.	2023	–	–	–	10	–	343	–	–
Dib et al.	2018	1.58	–	–	10	–	–	–	–
Joshi et al.	2016	1.58	1.58	–	10	–	–	–	–
Kharchenko et al.	2016	1.58	1.58	–	10	–	–	–	–
Kharchenko et al.	2013	1.58	1.58	–	10	–	–	–	–

Visualization

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