ASCC 65

(MWSC 1909)

0.57 UTI

0.81

C_N

0.56

C_dens

0.75

C_C3

0.35

C_lit

1.0

C_dup

N_m (P>50%) 269

Core radius and density 3.3 [pc], 2.8 [pc^-2]

C3 classification AB

C_N 0.81 Rich
C_dens 0.56 Moderately dense
C_C3 0.75 High 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 65 is a rich, moderately dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as an extremely massive, near-solar metallicity, very young cluster (see Parameters). It is poorly studied in the literature.

Note: This object shares a very small percentage of members with a later reported entry. See table with shared members information.

Distant Moderate extinction Extremely massive Near-solar metallicity Very young

Liu et al. (2025)
Classified as primordial binary cluster 10 along with HSC_2406, and of multiple system 6 along with HSC_2406 and NGC_3590.

Palma et al. (2025)
Part of multiple system G154, along with NGC_3590, NGC_3572, HSC_2406 and UBC_659.

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.97 (50th percentile), true positive? (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.97 (50th percentile), true positive? (human-assigned).

Data

🔍 Search references for ASCC 65 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–	167.825	-61.123	0.384	-6.289	1.145	3.006
Liu et al.	2025	167.83	-61.17	0.38	-6.31	1.13	4.17
Hunt & Reffert	2024	167.834	-61.167	0.382	-6.309	1.133	4.172
Cavallo et al.	2024	167.869	-61.144	0.385	–	–	–
Hunt & Reffert	2023	167.834	-61.167	0.382	-6.309	1.133	4.172
Bica et al.	2019	167.765	-61.117	–	–	–	–
Dib et al.	2018	167.745	-61.125	–	–	–	–
Sampedro et al.	2017	167.775	-61.12	–	-3.43	-2.49	–
Dias et al.	2014	167.775	-61.12	–	-3.48	-2.27	–
Gozha et al.	2012	167.775	-61.12	–	–	–	–
Piskunov et al.	2008	167.765	-61.117	–	–	–	–
Kharchenko et al.	2007	167.77	-61.12	–	0.22	–	-13.4
Kharchenko et al.	2005	167.77	-61.12	–	-6.83	0.88	-13.4
Dias et al.	2002	167.775	-61.12	–	-3.48	-2.27	-14.39

💡 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–	3.39	1.26	1.93	12	-0.070	14624	–	–
Liu et al.	2025	3.39	0.43	–	7	–	–	–	–
Hunt & Reffert	2024	2.36	1.09	1.93	6	–	408⁽¹⁾	–	–
Cavallo et al.	2024	2.13	1.32	–	13	-0.070	–	–	–
Hunt & Reffert	2023	2.36	1.09	1.93	6	–	–	–	–
Dib et al.	2018	1.93	–	–	7	–	–	–	–
Gozha et al.	2012	3.50	–	–	12	–	28840	–	–
Piskunov et al.	2008	3.50	1.26	–	12	–	–	–	–
Kharchenko et al.	2005	3.50	1.26	–	12	–	–	–	–
Dias et al.	2002	3.50	1.26	–	12	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
DBSB 65	0.4	167.8	-61.32	0.32	-6.47	0.79	–	0.03

💡 Note: The % column shows the percentage of members that ASCC 65 shares with each listed object.

Visualization

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