NGC 7438

(FSR 0380; MWSC 3682)

0.54 UTI

0.0

C_N

0.22

C_dens

0.75

C_C3

0.86

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 23

Radius (P>50% members) 19.1 [arcmin]

C_N 0.0 Sparse
C_dens 0.22 Very loose
C_C3 0.75 High quality
C_lit 0.86 Well-studied
C_dup 1.0 Unique

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

Overview

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NGC 7438 is a sparse, very loose object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is well-studied in the literature.

Close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for NGC 7438 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	–	344.793	54.322	1.209	-2.275	-4.264	-34.759
Zhang et al.	2024	344.671	54.251	–	–	–	–
Cavallo et al.	2024	345.645	54.546	1.227	–	–	–
Hunt & Reffert	2023	344.671	54.251	1.231	-2.204	-4.247	-37.127
Just et al.	2023	344.333	54.371	–	–	–	–
Bica et al.	2019	344.327	54.357	–	–	–	–
Loktin & Popova	2017	344.34	54.339	–	-0.535	-0.535	-17.0
Kharchenko et al.	2016	344.333	54.371	–	–	–	–
Dias et al.	2014	344.342	54.338	–	-2.14	-0.67	–
Kharchenko et al.	2013	344.34	54.375	–	0.01	-1.55	-17.0
Gozha et al.	2012	344.341	54.339	–	–	–	–
Kharchenko et al.	2012	344.34	54.375	–	0.01	-1.55	-17.0
Piskunov et al.	2008	344.326	54.335	–	–	–	–
Kharchenko et al.	2007	344.34	54.34	–	0.23	–	-17.0
Piskunov et al.	2007	344.326	54.335	–	–	–	–
Froebrich et al.	2007	344.146	54.251	–	–	–	–
Kharchenko et al.	2005	344.34	54.34	–	1.53	-1.18	–

💡 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
Zhang et al.	2024	–	–	–	–	0.005*	–	–	–
Cavallo et al.	2024	0.83	0.92	–	269	0.460	–	–	–
Hunt & Reffert	2023	0.77	0.81	0.32	238	–	–	–	–
Just et al.	2023	–	–	–	631	–	92	–	–
Loktin & Popova	2017	2.08	0.28	–	631	–	–	–	–
Kharchenko et al.	2016	1.00	1.08	–	631	–	–	–	–
Kharchenko et al.	2013	1.00	1.08	–	631	–	–	–	–
Gozha et al.	2012	0.60	–	–	851	–	98	–	–
Kharchenko et al.	2012	1.00	1.08	–	631	–	–	–	–
Piskunov et al.	2008	0.60	1.24	–	851	–	121*	–	–
Piskunov et al.	2007	0.60	1.24	–	851	–	22	–	–
Kharchenko et al.	2005	0.60	1.24	–	851	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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