Antalova 4

(MWSC 2624)

0.19 UTI

0.0

C_N

0.09

C_dens

0.25

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 15

Stellar density (N₅₀/rad) 0.4 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.09 Very loose
C_C3 0.25 Low quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Antalova 4 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by high extinction. It is catalogued as a very young cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~2.55 kpc) differs significantly from the median photometric distance (~1.80 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 young

Data

🔍 Search references for Antalova 4 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–	263.225	-32.966	0.392	-2.741	-4.89	–
Just et al.	2023	263.173	-32.956	–	–	–	–
Kharchenko et al.	2016	263.173	-32.956	–	–	–	–
Dias et al.	2014	263.163	-32.957	–	-0.33	-3.31	–
Kharchenko et al.	2013	263.182	-32.955	–	-1.02	1.39	–
Dias et al.	2002	263.163	-32.957	–	-0.33	-3.31	–

💡 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–	1.8	3.1	–	1	–	337	–	–
Just et al.	2023	–	–	–	1	–	337	–	–
Kharchenko et al.	2016	1.80	3.10	–	1	–	–	–	–
Kharchenko et al.	2013	1.80	3.10	–	1	–	–	–	–
Dias et al.	2002	1.80	3.10	–	1	–	–	–	–

Visualization

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