Morgan 8

(MWSC 597)

0.37 UTI

0.33

C_N

1.0

C_dens

0.5

C_C3

0.13

C_lit

0.88

C_dup

N_m (P>50%) 33

Core radius and density 0.3 [pc], 31 [pc^-2]

C3 classification DA

C_N 0.33 Poorly populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.13 Rarely studied
C_dup 0.88 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Morgan 8 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a very close distance, below the mid-plane, affected by low extinction. It is catalogued as a low-mass, very young cluster (see Parameters). It is rarely studied in the literature.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry, and a significant percentage with at least one entry reported in the same catalogue. See table with shared members information.

Very close Low extinction Low mass Very young

Bica et al. (2003)
Classified as infrared cluster (IRC).

Data

🔍 Search references for Morgan 8 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–	84.125	-6.424	2.548	0.846	0.298	16.822
Just et al.	2023	84.106	-6.42	–	–	–	–
Dib et al.	2018	84.112	-6.42	–	–	–	–
Joshi et al.	2016	84.112	-6.42	–	–	–	–
Kharchenko et al.	2016	84.106	-6.42	–	–	–	–
Kharchenko et al.	2013	84.112	-6.42	–	2.03	-2.39	–
Bica et al.	2003	84.097	-6.421	–	–	–	–

💡 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–	0.31	0.13	–	16	–	3	–	–
Just et al.	2023	–	–	–	16	–	3	–	–
Dib et al.	2018	0.31	–	–	16	–	–	–	–
Joshi et al.	2016	0.31	0.13	–	16	–	–	–	–
Kharchenko et al.	2016	0.31	0.13	–	16	–	–	–	–
Kharchenko et al.	2013	0.31	0.13	–	16	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0347	90.9	83.99	-6.36	2.6	1.01	0.32	24.19	0.31
LDN1641 North	54.5	84.08	-6.37	2.55	0.73	0.35	10.96	0.23
UBC 208	15.2	83.81	-5.95	2.6	1.24	0.54	23.25	0.06
NGC 1980	12.1	83.82	-5.96	2.6	1.24	0.55	20.88	0.88
OCSN 226	9.1	83.82	-5.96	2.61	1.26	0.55	23.02	0.02

💡 Note: The % column shows the percentage of members that Morgan 8 shares with each listed object.

Visualization

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