LDN1641 North

0.23 UTI

0.25

C_N

1.0

C_dens

0.12

C_C3

0.0

C_lit

0.84

C_dup

N₅₀ (P>50% members) 25

Stellar density (N₅₀/rad) 66.1 [N/pc²]

C3 classification DC

C_N 0.25 Poorly populated
C_dens 1.0 Very dense
C_C3 0.12 Very low quality
C_lit 0.0 Rarely studied
C_dup 0.84 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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LDN1641 North is a poorly populated, very dense object of very low C3 quality. Its parallax locates it at a very close distance, below the mid-plane. No fundamental parameter values are available for this object. It is rarely studied in the literature, with no articles listed in the last 23 years.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry, and a significant percentage with at least one entry reported in the same catalogue. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.84) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

No fundamental parameters

Bica et al. (2003)
Classified as infrared cluster (IRC).

Data

🔍 Search references for LDN1641 North 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–	84.077	-6.373	2.554	0.727	0.351	10.963
Bica et al.	2003	84.081	-6.366	–	–	–	–

💡 Note: The UCC values are estimated from its identified members.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0347	88.0	83.99	-6.36	2.6	1.01	0.32	24.19	0.31
Morgan 8	72.0	84.13	-6.42	2.55	0.85	0.3	16.82	0.32
UBC 208	20.0	83.81	-5.95	2.6	1.24	0.54	23.25	0.06
NGC 1980	16.0	83.82	-5.96	2.6	1.24	0.55	20.88	0.82
OCSN 226	12.0	83.82	-5.96	2.61	1.26	0.55	23.02	0.02

💡 Note: The % column shows the percentage of members that LDN1641 North shares with each listed object.

Visualization

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