ASCC 59

(MWSC 1793)

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0.16 UTI
0.0
CN
0.03
Cdens
0.12
CC3
0.32
Clit
1.0
Cdup
Nm (P>50%) 19
Core radius and density 3.1 [pc], 0.2 [pc-2]
C3 classification DC
  • CN 0.0 Sparse
  • Cdens 0.03 Very loose
  • CC3 0.12 Very low quality
  • Clit 0.32 Poorly studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
ASCC 59 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate* distance, near 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 (~2.04 kpc) differs significantly from the median photometric distance (~0.53 kpc).

⚠ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.88 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.88 (50th percentile).

Data
🔍 Search references for ASCC 59 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 155.31 -57.72 0.49 -8.812 4.829 2.596
Hunt & Reffert 2023 155.396 -57.679 0.501 -8.778 4.822 –
Bica et al. 2019 155.051 -57.646 – – – –
Dib et al. 2018 155.115 -57.675 – – – –
Sampedro et al. 2017 155.054 -57.65 – -3.65 1.45 –
Joshi et al. 2016 155.115 -57.675 – – – –
Kharchenko et al. 2016 155.109 -57.672 – – – –
Dias et al. 2014 155.054 -57.65 – -3.64 1.54 –
Kharchenko et al. 2013 155.115 -57.675 – -4.84 3.18 –
Piskunov et al. 2008 155.051 -57.646 – – – –
Kharchenko et al. 2005 155.05 -57.65 – -4.99 3.65 –
Dias et al. 2002 155.054 -57.65 – -4.99 3.65 –

💡 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] Bfrac BSS
UCC 99999– 0.53 0.16 0.41 343 – 155 – –
Hunt & Reffert 2023 1.88 0.34 0.41 4539 – – – –
Dib et al. 2018 0.51 – – 288 – – – –
Joshi et al. 2016 0.51 0.16 – 288 – 155 – –
Kharchenko et al. 2016 0.51 0.16 – 288 – – – –
Kharchenko et al. 2013 0.51 0.16 – 288 – – – –
Piskunov et al. 2008 0.55 0.16 – 398 – – – –
Kharchenko et al. 2005 0.55 0.16 – 398 – – – –
Dias et al. 2002 0.55 0.16 – 398 – – – –

Visualization
ℹī¸
ASCC 59 UCC
ASCC 59 HUNT23
Galactocentric position diagram