Hogg 17

(MWSC 2232)

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0.79 UTI
0.65
CN
0.57
Cdens
1.0
CC3
0.87
Clit
1.0
Cdup
Nm (P>50%) 80
Core radius and density 1.6 [pc], 2.9 [pc-2]
C3 classification AA
  • CN 0.65 Moderately populated
  • Cdens 0.57 Moderately dense
  • CC3 1.0 Very high quality
  • Clit 0.87 Well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Hogg 17 is a moderately populated, moderately dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the absorption and mass parameters (see Parameters). It is well-studied in the literature.

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 261 along with NGC_5617, and of multiple system 73 along with UBC_1527 and NGC_5617.

Palma et al. (2025)
Classified as optical pair P351, along with CWNU_2431.

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.3473, e_all=0.2705.

Piecka & Paunzen (2021)
Belongs to cluster aggregate 'Agg45' along with NGC 5617, Pismis 19 and Trumpler 22.

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

Ahumada & Lapasset (2007)
Star 1 appears as a straggler but is a non-member according to (1968ArA.....4..493L).

Data
🔍 Search references for Hogg 17 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 218.458 -61.326 0.411 -5.234 -2.422 -44.142
Liu et al. 2025 218.47 -61.31 0.41 -5.25 -2.42 -43.93
Li et al. 2025 218.459 -61.326 0.407 -5.201 -2.433 –
Almeida et al. 2025 218.464 -61.328 – – – –
Hunt & Reffert 2024 218.468 -61.313 0.414 -5.247 -2.423 -43.925
Cavallo et al. 2024 218.478 -61.324 0.414 – – –
Hunt & Reffert 2023 218.468 -61.313 0.414 -5.247 -2.423 -43.925
Just et al. 2023 218.485 -61.344 – – – –
Jaehnig et al. 2021 218.451 -61.36 0.438 -5.21 -2.439 –
Rain et al. 2021 218.459 -61.326 0.407 -5.201 -2.433 –
Richer et al. 2021 218.473 -61.333 0.377 -5.213 -2.443 –
Dias et al. 2021 218.464 -61.328 0.413 -5.188 -2.45 -43.793
Cantat-Gaudin et al. 2020 218.459 -61.326 0.407 -5.201 -2.433 –
Cantat-Gaudin & Anders 2020 218.459 -61.326 0.407 -5.201 -2.433 –
Soubiran et al. 2018 218.459 -61.326 – – – -43.76
Cantat-Gaudin et al. 2018 218.459 -61.326 0.407 -5.201 -2.433 –
Dias et al. 2018 – – – -4.09 -2.94 –
Dib et al. 2018 218.497 -61.347 – – – –
Loktin & Popova 2017 218.49 -61.368 – -8.429 -5.605 –
Sampedro et al. 2017 218.492 -61.367 – -5.0 -4.6 –
Joshi et al. 2016 218.497 -61.347 – – – –
Kharchenko et al. 2016 218.485 -61.344 – – – –
Dias et al. 2014 218.492 -61.367 – -6.01 -5.87 –
Kharchenko et al. 2013 218.497 -61.347 – -2.82 -4.48 –
Morales et al. 2013 218.492 -61.367 – – – –
Ahumada & Lapasset 2007 218.5 -61.367 – – – –
van den Bergh 2006 218.458 -61.363 – – – –
Dias et al. 2002 218.492 -61.367 – -6.01 -5.87 –
Lynga 1987 218.439 -61.377 – – – –

💡 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– 2.17 1.86 0.48 107 0.209 283 – 0
Liu et al. 2025 4.66 0.67 – 81 – – – –
Li et al. 2025 2.01 2.00 – 120 -0.005 – – –
Almeida et al. 2025 2.17 1.94 – 88 – 283 – –
Hunt & Reffert 2024 2.22 1.83 0.48 70 – 447(1) – –
Cavallo et al. 2024 1.70 1.72 – 219 0.220 – – –
Hunt & Reffert 2023 2.22 1.83 0.48 70 – – – –
Just et al. 2023 – – – 141 – 15 – –
Jaehnig et al. 2021 2.31(1) – – – – – – –
Rain et al. 2021 2.29 1.86 – 107 – – – 0
Richer et al. 2021 – 0.54 – – – – – –
Dias et al. 2021 2.17 1.94 – 88 0.209 – – –
Cantat-Gaudin et al. 2020 2.28 1.80 – 148 – – – –
Kounkel et al. 2020 2.23 2.47 – 83 – – – –
Cantat-Gaudin & Anders 2020 2.29 – – – – – – –
Soubiran et al. 2018 2.29 – – – – – – –
Cantat-Gaudin et al. 2018 2.29 – – – – – – –
Dib et al. 2018 1.15 – – 141 – – – –
Loktin & Popova 2017 1.32 1.88 – 99 – – – –
Joshi et al. 2016 1.15 1.97 – 141 – – – –
Kharchenko et al. 2016 1.15 1.97 – 141 – – – –
Kharchenko et al. 2013 1.15 1.97 – 141 – – – –
Morales et al. 2013 1.31 – – 107 – – – –
Ahumada & Lapasset 2007 – 1.86 – 107 – – – 0
van den Bergh 2006 1.31 1.86 – 107 – – – –
Dias et al. 2002 1.31 1.87 – 107 – – – –
Lynga 1987 1.70 1.58 – 182 – – – –

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

Visualization
ℹī¸
Hogg 17 UCC
Hogg 17 HUNT23
Hogg 17 CANTAT20
Galactocentric position diagram