NGC 7055

(MWSC 3494)

0.16 UTI

0.0

C_N

0.01

C_dens

0.25

C_C3

0.26

C_lit

1.0

C_dup

N_m (P>50%) 11

Core radius and density 3.6 [pc], 0.05 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.25 Low quality
C_lit 0.26 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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NGC 7055 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.56 kpc) differs significantly from the median photometric distance (~1.95 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 High extinction Intermediate age

Cantat-Gaudin & Anders (2020)
Non-existent in early catalogues. Sparse and contradictory age and distance estimates exist. More details in Appendix A of the article.

Data

🔍 Search references for NGC 7055 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–	319.724	57.529	0.22	-3.442	-2.943	–
Just et al.	2023	319.886	57.604	–	–	–	–
Bica et al.	2019	319.86	57.58	–	–	–	–
Loktin & Popova	2017	319.89	57.57	–	0.297	-0.829	–
Sampedro et al.	2017	319.875	57.57	–	-0.68	4.28	–
Kharchenko et al.	2016	319.886	57.604	–	–	–	–
Tadross	2014	319.875	57.57	–	–	–	–
Dias et al.	2014	319.875	57.57	–	0.37	4.28	–
Kharchenko et al.	2013	319.89	57.607	–	1.09	-2.61	–
Kharchenko et al.	2012	319.89	57.607	–	1.09	-2.61	–
Dias et al.	2002	319.875	57.57	–	0.38	4.3	–

💡 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–	1.95	3.705	–	251	–	97	–	–
Just et al.	2023	–	–	–	251	–	97	–	–
Loktin & Popova	2017	2.25	2.01	–	1096	–	–	–	–
Kharchenko et al.	2016	1.95	3.94	–	251	–	–	–	–
Tadross	2014	1.27	3.47	–	800	–	–	–	–
Kharchenko et al.	2013	1.95	3.94	–	251	–	–	–	–
Kharchenko et al.	2012	1.95	3.94	–	251	–	–	–	–
Dias et al.	2002	1.27	3.47	–	794	–	–	–	–

Visualization

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