Hogg 17

(MWSC 2232)

0.93 UTI

0.65

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 80

Stellar density (N₅₀/rad) 11.6 [N/pc²]

C3 classification AA

C_N 0.65 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Hogg 17 is a moderately populated, very 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 very well-studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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.

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

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

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for Hogg 17 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–	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	–
Loktin & Popova	2017	218.49	-61.368	–	-8.429	-5.605	–
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	–	–	–	–
van den Bergh	2006	218.458	-61.363	–	–	–	–
Dias et al.	2002	218.492	-61.367	–	-6.01	-5.87	–

💡 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–	2.17	1.835	0.48	107	0.209	283	–	0.0
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	–	–	–	–	–	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	1.83	–	107	–	–	–	0
Richer et al.	2021	–	0.53	–	–	–	–	–	–
Dias et al.	2021	2.17	1.94	–	88	0.209	–	–	–
Cantat-Gaudin et al.	2020	2.28	1.80	–	148	–	–	–	–
Cantat-Gaudin & Anders	2020	2.29	–	–	–	–	–	–	–
Soubiran et al.	2018	2.29	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.29	–	–	–	–	–	–	–
Loktin & Popova	2017	1.32	1.84	–	99	–	–	–	–
Kharchenko et al.	2016	1.15	1.94	–	141	–	–	–	–
Kharchenko et al.	2013	1.15	1.94	–	141	–	–	–	–
Morales et al.	2013	1.31	–	–	107	–	–	–	–
van den Bergh	2006	1.31	1.83	–	107	–	–	–	–
Dias et al.	2002	1.31	1.84	–	107	–	–	–	–

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

Visualization

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