Lynga 7

0.10 UTI

0.0

C_N

0.0

C_dens

0.5

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 13

Stellar density (N₅₀/rad) 0.0 [N/pc²]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.0 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Lynga 7 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a very large^* distance, well below the mid-plane, affected by low extinction. It is catalogued as a very young cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 18 years.

(*): The parallax distance estimate (~13.62 kpc) differs significantly from the median photometric distance (~0.75 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 Very young

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for Lynga 7 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–	242.709	-55.271	0.073	-4.402	-3.823	-8.806
Piskunov et al.	2008	242.672	-55.289	–	–	–	–
Kharchenko et al.	2005	242.68	-55.29	–	-0.75	-3.68	–
Kharchenko et al.	2003	242.71	-55.32	–	-1.86	-1.4	–

💡 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–	0.75	0.84	–	13	–	–	–	–
Piskunov et al.	2008	0.75	0.84	–	13	–	–	–	–
Kharchenko et al.	2005	0.75	0.84	–	13	–	–	–	–
Kharchenko et al.	2003	0.75	0.84	–	–	–	–	–	–

Visualization

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