ASCC 27

(MWSC 1009)

0.54 UTI

0.38

C_N

0.32

C_dens

0.75

C_C3

0.62

C_lit

1.0

C_dup

N₅₀ (P>50% members) 38

Stellar density (N₅₀/rad) 1.6 [N/pc²]

C3 classification AB

C_N 0.38 Poorly populated
C_dens 0.32 Loose
C_C3 0.75 High quality
C_lit 0.62 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 27 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by low extinction. It is catalogued as a metal-rich, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~3.51 kpc) differs significantly from the median photometric distance (~1.20 kpc).

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

Relatively close Low extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for ASCC 27 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–	103.502	-4.504	0.284	-0.708	0.623	–
Hunt & Reffert	2024	103.512	-4.512	0.281	-0.705	0.625	–
Cavallo et al.	2024	103.527	-4.537	0.284	–	–	–
Hunt & Reffert	2023	103.512	-4.512	0.281	-0.705	0.625	–
Just et al.	2023	103.478	-4.388	–	–	–	–
Bica et al.	2019	103.469	-4.393	–	–	–	–
Kharchenko et al.	2016	103.478	-4.388	–	–	–	–
Dias et al.	2014	103.471	-4.39	–	-0.78	0.69	–
Kharchenko et al.	2013	103.485	-4.39	–	-1.84	-2.6	–
Piskunov et al.	2008	103.465	-4.384	–	–	–	–
Kharchenko et al.	2005	103.47	-4.39	–	-2.36	-3.72	–
Dias et al.	2002	103.471	-4.39	–	-0.78	0.69	–

💡 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–	1.2	0.28	2.46	501	0.730	383	–	–
Hunt & Reffert	2024	–	–	–	–	–	675⁽¹⁾	–	–
Cavallo et al.	2024	3.27	2.87	–	129	0.730	–	–	–
Hunt & Reffert	2023	3.04	3.29	2.46	54	–	–	–	–
Just et al.	2023	–	–	–	501	–	91	–	–
Kharchenko et al.	2016	1.16	0.28	–	501	–	–	–	–
Kharchenko et al.	2013	1.16	0.28	–	501	–	–	–	–
Piskunov et al.	2008	1.20	0.28	–	562	–	–	–	–
Kharchenko et al.	2005	1.20	0.28	–	562	–	–	–	–
Dias et al.	2002	1.20	0.28	–	562	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3207	68.4	103.5	-4.53	0.29	-0.71	0.62	–	0.02
BDSB 88	65.8	103.55	-4.53	0.27	-0.73	0.67	–	0.1

💡 Note: The % column shows the percentage of members that ASCC 27 shares with each listed object.

Visualization

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