ASCC 40

(MWSC 1266)

0.36 UTI

0.26

C_N

0.02

C_dens

0.62

C_C3

0.45

C_lit

1.0

C_dup

N₅₀ (P>50% members) 26

Stellar density (N₅₀/rad) 0.1 [N/pc²]

C3 classification AC

C_N 0.26 Poorly populated
C_dens 0.02 Very loose
C_C3 0.62 Intermediate 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 40 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a large^* distance, 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 (~5.51 kpc) differs significantly from the median photometric distance (~0.70 kpc).

Note: This object shares a moderate percentage of members with 2 later reported entries. See table with shared members information.

Close Low extinction Intermediate age

Data

🔍 Search references for ASCC 40 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–	113.43	-13.765	0.182	-1.378	1.741	95.095
Just et al.	2023	113.408	-13.763	–	–	–	–
Bica et al.	2019	113.401	-13.755	–	–	–	–
Kharchenko et al.	2016	113.408	-13.763	–	–	–	–
Dias et al.	2014	113.4	-13.76	–	-2.47	1.72	–
Kharchenko et al.	2013	113.415	-13.765	–	-1.13	-1.12	–
Piskunov et al.	2008	113.391	-13.76	–	–	–	–
Kharchenko et al.	2005	113.4	-13.76	–	-2.07	2.7	–
Dias et al.	2002	113.4	-13.76	–	-2.47	1.72	–

💡 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	0.34	–	506	–	630	–	–
Just et al.	2023	–	–	–	631	–	630	–	–
Kharchenko et al.	2016	3.11	1.29	–	631	–	–	–	–
Kharchenko et al.	2013	3.11	1.29	–	631	–	–	–	–
Piskunov et al.	2008	0.70	0.34	–	380	–	–	–	–
Kharchenko et al.	2005	0.70	0.34	–	380	–	–	–	–
Dias et al.	2002	0.70	0.34	–	380	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3444	34.6	113.59	-13.65	0.2	-1.37	1.87	77.28	0.03
HSC 1814	34.6	113.52	-13.61	0.2	-1.37	1.87	90.31	0.1

💡 Note: The % column shows the percentage of members that ASCC 40 shares with each listed object.

Visualization

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