Dutra Bica 28

(DB2000 28; MWSC 2738)

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0.17 UTI
0.0
CN
0.01
Cdens
0.25
CC3
0.29
Clit
1.0
Cdup
Nm (P>50%) 15
Core radius and density 4.2 [pc], 0.07 [pc-2]
C3 classification DB
  • CN 0.0 Sparse
  • Cdens 0.01 Very loose
  • CC3 0.25 Low quality
  • Clit 0.29 Poorly studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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Dutra Bica 28 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate* distance, below the mid-plane, affected by very high extinction. It is catalogued as an extremely massive, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.52 kpc) differs significantly from the median photometric distance (~7.58 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.

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

Data
🔍 Search references for Dutra Bica 28 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– 268.368 -28.325 0.284 -1.261 -0.654 -12.419
Just et al. 2023 268.353 -28.321 – – – –
Bica et al. 2019 268.363 -28.345 – – – –
Dias et al. 2018 – – – -1.38 -3.27 –
Sampedro et al. 2017 268.371 -28.348 – – – –
Kharchenko et al. 2016 268.353 -28.321 – – – –
Dias et al. 2014 268.371 -28.348 – 0.84 -3.47 –
Kharchenko et al. 2013 268.362 -28.32 – -1.04 1.3 –
Morales et al. 2013 268.37 -28.348 – – – –
Bukowiecki et al. 2011 268.363 -28.33 – – – –
Dias et al. 2002 268.371 -28.348 – 0.84 -3.47 –
Dutra & Bica 2000 268.363 -28.345 – – – –

💡 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– 7.58 5.91 – 251 – 46559 – –
Just et al. 2023 – – – 251 – 46559 – –
Kharchenko et al. 2016 7.58 5.91 – 251 – – – –
Kharchenko et al. 2013 7.58 5.91 – 251 – – – –
Dias et al. 2002 7.58 5.91 – 251 – – – –

Visualization
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Dutra Bica 28 UCC
Galactocentric position diagram