ASCC 2

(MWSC 31)

0.33 UTI

0.38

C_N

0.03

C_dens

0.25

C_C3

0.5

C_lit

1.0

C_dup

N₅₀ (P>50% members) 38

Stellar density (N₅₀/rad) 0.2 [N/pc²]

C3 classification CC

C_N 0.38 Poorly populated
C_dens 0.03 Very loose
C_C3 0.25 Low quality
C_lit 0.5 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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ASCC 2 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a large^* distance, well below the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~7.11 kpc) differs significantly from the median photometric distance (~1.75 kpc).

Relatively close Low extinction Intermediate age

Data

🔍 Search references for ASCC 2 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–	4.869	55.675	0.141	-1.954	-0.771	–
Just et al.	2023	4.865	55.642	–	–	–	–
Bica et al.	2019	4.963	55.707	–	–	–	–
Kharchenko et al.	2016	4.865	55.642	–	–	–	–
Dias et al.	2014	4.967	55.71	–	0.24	-1.19	–
Kharchenko et al.	2013	4.875	55.645	–	-1.56	-1.34	–
Kharchenko et al.	2012	4.875	55.645	–	-1.56	-1.34	–
Piskunov et al.	2008	4.963	55.707	–	–	–	–
Kharchenko et al.	2005	4.96	55.71	–	-0.91	-3.94	–
Dias et al.	2002	4.967	55.71	–	-1.56	-1.34	–

💡 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–	1.75	0.93	–	741	–	632	–	–
Just et al.	2023	–	–	–	741	–	632	–	–
Kharchenko et al.	2016	2.30	1.55	–	741	–	–	–	–
Kharchenko et al.	2013	2.30	1.55	–	741	–	–	–	–
Kharchenko et al.	2012	2.30	1.55	–	741	–	–	–	–
Piskunov et al.	2008	1.20	0.31	–	676	–	–	–	–
Kharchenko et al.	2005	1.20	0.31	–	676	–	–	–	–
Dias et al.	2002	1.20	0.31	–	676	–	–	–	–

Visualization

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