Hogg 19

(MWSC 2415; OCL 969; ESO 226 11)

0.64 UTI

0.54

C_N

0.51

C_dens

0.75

C_C3

0.71

C_lit

1.0

C_dup

N_m (P>50%) 58

Core radius and density 1.7 [pc], 2.5 [pc^-2]

C3 classification BA

C_N 0.54 Moderately populated
C_dens 0.51 Moderately dense
C_C3 0.75 High quality
C_lit 0.71 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

Hogg 19 is a moderately populated, moderately dense object of 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 age, metallicity, and mass parameters (see Parameters). It is moderately studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.48 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.48 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.4016, e_all=0.167.

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 Hogg 19 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	247.237	-49.113	0.393	-2.108	-3.127	-21.859
Almeida et al.	2025	247.23	-49.105	–	–	–	–
Hunt & Reffert	2024	247.248	-49.119	0.41	-2.121	-3.134	-14.131
Celli et al.	2024	247.236	-49.11	–	–	–	–
Cavallo et al.	2024	247.26	-49.098	0.409	–	–	–
Hunt & Reffert	2023	247.248	-49.119	0.41	-2.121	-3.134	-14.131
Just et al.	2023	247.249	-49.097	–	–	–	–
Dias et al.	2022	247.241	-49.109	0.409	-2.116	-3.132	–
Dias et al.	2021	247.23	-49.105	0.368	-2.071	-3.12	–
Cantat-Gaudin et al.	2020	247.236	-49.11	0.369	-2.05	-3.125	–
Cantat-Gaudin & Anders	2020	247.236	-49.11	0.369	-2.05	-3.125	–
Bica et al.	2019	247.249	-49.104	–	–	–	–
Cantat-Gaudin et al.	2018	247.236	-49.11	0.369	-2.05	-3.125	–
Dias et al.	2018	–	–	–	-2.03	-3.24	–
Dib et al.	2018	247.26	-49.097	–	–	–	–
Sampedro et al.	2017	247.238	-49.1	–	-3.13	-4.89	–
Joshi et al.	2016	247.26	-49.097	–	–	–	–
Kharchenko et al.	2016	247.249	-49.097	–	–	–	–
Dias et al.	2014	247.238	-49.1	–	-2.91	-5.07	–
Kharchenko et al.	2013	247.26	-49.097	–	-3.52	-4.01	–
Morales et al.	2013	247.238	-49.1	–	–	–	–
Bukowiecki et al.	2011	247.271	-49.12	–	–	–	–
Dias et al.	2002	247.238	-49.1	–	-2.91	-5.07	–
Lynga	1987	247.217	-49.126	–	–	–	–

💡 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–	2.51	2.14	2.08	224	0.119	306	–	–
Almeida et al.	2025	2.51	2.35	–	13	–	280	–	–
Hunt & Reffert	2024	2.26	2.58	2.08	34	–	597⁽¹⁾	–	–
Celli et al.	2024	–	–	–	19	–	333	–	–
Cavallo et al.	2024	2.08	2.05	–	224	0.830	–	–	–
Hunt & Reffert	2023	2.26	2.58	2.08	34	–	–	–	–
Just et al.	2023	–	–	–	1035	–	22	–	–
Dias et al.	2022	2.29⁽¹⁾	2.48⁽¹⁾	–	67⁽¹⁾	0.119⁽¹⁾	–	–	–
Dias et al.	2021	2.51	2.35	–	13	0.098	–	–	–
Cantat-Gaudin et al.	2020	2.56	2.14	–	19	–	–	–	–
Kounkel et al.	2020	2.67	3.03	–	35	–	–	–	–
Cantat-Gaudin & Anders	2020	2.51	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.51	–	–	–	–	–	–	–
Dib et al.	2018	0.90	–	–	1035	–	–	–	–
Joshi et al.	2016	0.90	1.31	–	1035	–	–	–	–
Kharchenko et al.	2016	0.90	1.31	–	1035	–	–	–	–
Kharchenko et al.	2013	0.90	1.31	–	1035	–	–	–	–
Morales et al.	2013	2.60	–	–	2500	–	–	–	–
Bukowiecki et al.	2011	3.29⁽¹⁾	1.83	–	1259	–	–	–	–
Dias et al.	2002	3.27	1.89	–	1259	–	–	–	–

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

Visualization

ℹ️

1 2 3