Collinder 144

(NGC 2395; OCL 502; MWSC 1228)

0.15 UTI

0.0

C_N

0.0

C_dens

0.12

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 16

Stellar density (N₅₀/rad) 0.0 [N/pc²]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.0 Very loose
C_C3 0.12 Very low quality
C_lit 0.3 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 144 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a very large^* distance, well above the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature, with no articles listed in the last 7 years.

(*): The parallax distance estimate (~18.42 kpc) differs significantly from the median photometric distance (~0.51 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.

Close Low extinction Old

Data

🔍 Search references for Collinder 144 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–	111.755	13.593	0.054	-0.386	-0.895	48.734
Bica et al.	2019	111.776	13.592	–	–	–	–
Loktin & Popova	2017	111.795	13.608	–	-2.109	-5.187	–
Dias et al.	2014	111.8	13.608	–	-0.95	-3.56	–
van den Bergh	2006	111.775	13.583	–	–	–	–
Dias et al.	2002	111.8	13.608	–	-3.36	-6.02	–

💡 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–	0.51	0.37	–	1175	–	–	–	–
Loktin & Popova	2017	0.59	0.37	–	1180	–	–	–	–
van den Bergh	2006	0.51	0.37	–	1175	–	–	–	–
Dias et al.	2002	0.51	0.37	–	1175	–	–	–	–

Visualization

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