ASCC 25

(MWSC 977)

0.18 UTI

0.0

C_N

0.06

C_dens

0.12

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 21

Stellar density (N₅₀/rad) 0.3 [N/pc²]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.06 Very loose
C_C3 0.12 Very low quality
C_lit 0.35 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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ASCC 25 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, well above the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.79 kpc) differs significantly from the median photometric distance (~1.40 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 Low extinction Intermediate age

Data

🔍 Search references for ASCC 25 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–	101.36	24.625	0.264	-0.826	-1.951	56.773
Just et al.	2023	101.376	24.597	–	–	–	–
Bica et al.	2019	101.385	24.602	–	–	–	–
Dias et al.	2018	–	–	–	0.27	-3.44	–
Dib et al.	2018	101.385	24.595	–	–	–	–
Sampedro et al.	2017	101.383	24.6	-2.1	-3.97	–	–
Kharchenko et al.	2016	101.376	24.597	–	–	–	–
Dias et al.	2014	101.383	24.6	–	-2.06	-3.99	–
Kharchenko et al.	2013	101.385	24.595	–	-0.6	-2.66	21.5
Gozha et al.	2012	101.383	24.6	–	–	–	–
Piskunov et al.	2008	101.375	24.597	–	–	–	–
Kharchenko et al.	2007	101.38	24.6	–	0.21	–	21.5
Kharchenko et al.	2005	101.38	24.6	–	0.96	-3.26	21.5
Dias et al.	2002	101.383	24.6	–	-2.06	-3.99	21.5

💡 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–	1.4	0.5	–	992	–	293	–	–
Just et al.	2023	–	–	–	1259	–	367	–	–
Dib et al.	2018	1.99	–	–	1259	–	–	–	–
Kharchenko et al.	2016	1.99	1.05	–	1259	–	–	–	–
Kharchenko et al.	2013	1.99	1.05	–	1259	–	–	–	–
Gozha et al.	2012	1.40	–	–	724	–	219	–	–
Piskunov et al.	2008	1.40	0.50	–	724	–	–	–	–
Kharchenko et al.	2005	1.40	0.50	–	724	–	–	–	–
Dias et al.	2002	1.40	0.50	–	724	–	–	–	–

Visualization

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