ASCC 31

(MWSC 1066)

0.22 UTI

0.0

C_N

0.08

C_dens

0.12

C_C3

0.45

C_lit

1.0

C_dup

N₅₀ (P>50% members) 18

Stellar density (N₅₀/rad) 0.4 [N/pc²]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.08 Very loose
C_C3 0.12 Very low quality
C_lit 0.45 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 31 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by low extinction. It is catalogued as a low-mass, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.04 kpc) differs significantly from the median photometric distance (~0.60 kpc).

Close Low extinction Low mass Intermediate age

Data

🔍 Search references for ASCC 31 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–	105.302	3.53	0.329	-1.016	-0.668	56.273
Just et al.	2023	105.262	3.532	–	–	–	–
Bica et al.	2019	105.226	3.501	–	–	–	–
Kharchenko et al.	2016	105.262	3.532	–	–	–	–
Dias et al.	2014	105.225	3.5	–	-1.08	-1.47	–
Kharchenko et al.	2013	105.27	3.53	–	-0.91	-2.19	–
Piskunov et al.	2008	105.217	3.497	–	–	–	–
Kharchenko et al.	2005	105.22	3.5	–	1.2	-1.38	–
Dias et al.	2002	105.225	3.5	–	-1.08	-1.47	–

💡 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–	0.6	0.46	–	339	–	38	–	–
Just et al.	2023	–	–	–	251	–	38	–	–
Kharchenko et al.	2016	0.75	0.32	–	251	–	–	–	–
Kharchenko et al.	2013	0.75	0.32	–	251	–	–	–	–
Piskunov et al.	2008	0.60	0.46	–	427	–	–	–	–
Kharchenko et al.	2005	0.60	0.46	–	427	–	–	–	–
Dias et al.	2002	0.60	0.46	–	427	–	–	–	–

Visualization

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