NGC 7023

(Collinder 427)

0.38 UTI

0.71

C_N

0.08

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 92

Core radius and density 1.6 [pc], 0.4 [pc^-2]

C3 classification AA

C_N 0.71 Moderately populated
C_dens 0.08 Very loose
C_C3 1.0 Very high quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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NGC 7023 is a moderately populated, very loose object of very high C3 quality. Its parallax locates it at a very close^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a young cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~0.34 kpc) differs significantly from the median photometric distance (~0.56 kpc).

Note: This object shares a moderate percentage of members with 2 later reported entries. See table with shared members information.

Close Moderate extinction Young

Data

🔍 Search references for NGC 7023 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–	316.347	68.498	2.906	7.832	-1.103	-13.977
He et al.	2022	317.329	68.799	2.905	7.815	-1.086	–
Tadross	2014	315.396	68.17	–	–	–	–
Lynga	1987	314.88	68.157	–	–	–	–
Sulentic et al.	1973	315.126	68.165	–	–	–	–

💡 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–	0.56	1.96	–	63	–	–	–	–
He et al.	2022	–	0.45	–	6	–	–	–	–
Tadross	2014	0.56	3.47	–	120	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OCSN 34	48.9	315.44	68.16	2.91	7.44	-1.39	-21.36	0.11
Theia 5	37.0	315.43	68.15	2.92	7.49	-1.4	-21.36	0.03

💡 Note: The % column shows the percentage of members that NGC 7023 shares with each listed object.

Visualization

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