NGC 6455

(MWSC 2725; ESO 394 03)

0.18 UTI

0.0

C_N

0.0

C_dens

0.38

C_C3

0.25

C_lit

1.0

C_dup

C3 classification CB

Number of members (P>50%) 14

Radius (P>50% members) 7.1 [arcmin]

C_N 0.0 Sparse
C_dens 0.0 Very loose
C_C3 0.38 Low quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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NGC 6455 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very large^* distance, well below the mid-plane, affected by high extinction. It is catalogued as a very massive, old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~24.10 kpc) differs significantly from the median photometric distance (~2.71 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 Very massive Old

Dias et al. (2002)
Asterism (Archinal, B. A. & Hynes, S. J. 2003)

Data

🔍 Search references for NGC 6455 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	–	268.045	-35.304	0.042	-4.023	-7.358	–
Just et al.	2023	267.928	-35.176	–	–	–	–
Bica et al.	2019	268.087	-35.458	–	–	–	–
Kharchenko et al.	2016	267.928	-35.176	–	–	–	–
Kharchenko et al.	2013	267.937	-35.175	–	1.49	-2.77	–

💡 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]	Bfr	BSS
Just et al.	2023	–	–	–	1778	–	8072	–	–
Kharchenko et al.	2016	2.71	3.23	–	1778	–	–	–	–
Kharchenko et al.	2013	2.71	3.23	–	1778	–	–	–	–

Visualization

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