ASCC 33

(MWSC 1077)

0.27 UTI

0.0

C_N

0.1

C_dens

0.25

C_C3

0.5

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 0.5 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.1 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 33 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very close^* distance, near the mid-plane, affected by low extinction. It is catalogued as a very massive, near-solar metallicity, very young cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~0.43 kpc) differs significantly from the median photometric distance (~0.80 kpc).

Close Low extinction Very massive Near-solar metallicity Very young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for ASCC 33 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–	105.204	-24.442	2.321	-9.887	1.192	17.282
Cavallo et al.	2024	104.696	-24.009	2.358	–	–	–
Hunt & Reffert	2023	105.454	-24.437	2.324	-9.781	1.143	16.879
Bica et al.	2019	105.797	-25.054	–	–	–	–
Dias et al.	2014	105.796	-25.05	–	-1.86	0.22	–
Gozha et al.	2012	105.796	-25.05	–	–	–	–
Piskunov et al.	2008	105.792	-25.045	–	–	–	–
Kharchenko et al.	2007	105.79	-25.05	–	0.9	–	15.0
Kharchenko et al.	2005	105.79	-25.05	–	-3.78	3.78	15.0
Dias et al.	2002	105.796	-25.05	–	-3.78	3.78	16.15

💡 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–	0.8	0.16	0.37	18	-0.018	7762	–	–
Cavallo et al.	2024	0.43	0.44	–	89	0.130	–	–	–
Hunt & Reffert	2023	0.41	0.06	0.37	215	–	–	–	–
Gozha et al.	2012	0.80	–	–	18	–	7762	–	–
Piskunov et al.	2008	0.80	0.16	–	18	–	–	–	–
Kharchenko et al.	2005	0.80	0.16	–	18	–	–	–	–
Dias et al.	2002	0.80	0.16	–	18	-0.166	–	–	–

Visualization

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