Cepheus A

(Cep A)

0.14 UTI

0.0

C_N

0.32

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N_m (P>50%) 21

Core radius and density 1.7 [pc], 1.6 [pc^-2]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.32 Loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Cepheus A is a sparse, loose object of low C3 quality. Its parallax locates it at a close distance, above the mid-plane. It is catalogued as a cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 23 years.

⚠️ 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.

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

Lada & Lada (2003)
Embedded cluster within ∼2 Kpc of the Sun.

Data

🔍 Search references for Cepheus A 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–	344.049	62.061	1.246	-1.049	-2.644	-20.625
Lada & Lada	2003	344.079	62.032	–	–	–	–
Bica et al.	2003	344.077	62.026	–	–	–	–

💡 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–	0.7	–	–	–	–	310	–	–
Lada & Lada	2003	0.70	–	–	–	–	310	–	–

Visualization

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