Herschel 1

(ASCC 41; FSR 1141; MWSC 1337; ADS 6366; MWSC 1335; OCSN 130)

0.96 UTI

0.78

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 189

Stellar density (N₅₀/rad) 15.9 [N/pc²]

C3 classification AA

C_N 0.78 Rich
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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Herschel 1 is a rich, very dense object of very high C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the absorption, age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.

Very close Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Herschel 1 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–	116.7	0.104	3.379	0.674	-3.937	-10.566
Li et al.	2025	116.674	0.137	3.352	0.646	-3.99	–
Wei et al.	2025	116.697	0.101	3.371	0.638	-3.954	–
Almeida et al.	2025	116.665	0.18	–	–	–	–
Alfonso et al.	2024	116.687	0.175	3.345	0.671	-3.944	–
Zhang et al.	2024	116.708	0.077	–	–	–	–
Hunt & Reffert	2024	116.708	0.077	3.369	0.669	-3.97	-10.199
Cavallo et al.	2024	116.693	0.155	3.372	–	–	–
Hunt & Reffert	2023	116.708	0.077	3.369	0.669	-3.97	-10.199
Almeida et al.	2023	116.581	0.141	–	–	–	–
Qin et al.	2023	116.68	0.17	3.38	0.65	-3.97	-11.19
Just et al.	2023	116.739	0.022	–	–	–	–
He et al.	2022	116.672	0.208	3.383	0.692	-3.953	–
Tarricq et al.	2022	116.674	-0.065	3.37	0.694	-3.94	–
Dias et al.	2021	116.665	0.18	3.361	0.652	-4.03	-10.409
Cantat-Gaudin et al.	2020	116.674	0.137	3.352	0.646	-3.99	–
Cantat-Gaudin & Anders	2020	116.674	0.137	3.352	0.646	-3.99	–
Bossini et al.	2019	116.674	0.137	–	–	–	–
Soubiran et al.	2018	116.674	0.137	–	–	–	-10.07
Bica et al.	2019	116.755	0.02	–	–	–	–
Cantat-Gaudin et al.	2018	116.674	0.137	3.352	0.646	-3.99	–
Loktin & Popova	2017	116.76	-0.019	–	1.93	-3.93	–
Kharchenko et al.	2016	116.739	0.022	–	–	–	–
Dias et al.	2014	116.758	0.018	–	-2.44	-2.14	–
Kharchenko et al.	2013	116.745	0.02	–	1.76	-3.43	–
Piskunov et al.	2008	116.755	0.02	–	–	–	–
Froebrich et al.	2007	116.667	-0.067	–	–	–	–
Kharchenko et al.	2005	116.76	0.02	–	1.93	-3.93	–
Dias et al.	2002	116.758	0.018	–	1.93	-3.93	–

💡 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–	0.3	0.06	0.4	214	-0.050	143	0.225	–
Li et al.	2025	0.29	0.04	–	93	-0.063	–	–	–
Wei et al.	2025	0.45	0.73	–	34	-0.250	213	0.22	–
Almeida et al.	2025	0.30	0.08	–	281	–	143	–	–
Alfonso et al.	2024	0.30	0.00	–	64	-0.089	–	–	–
Zhang et al.	2024	–	–	–	–	-0.020⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	156⁽¹⁾	–	–
Cavallo et al.	2024	0.30	0.39	–	115	0.140	–	–	–
Hunt & Reffert	2023	0.29	0.05	0.40	177	–	–	–	–
Almeida et al.	2023	0.29	0.01	–	100	-0.036	126⁽¹⁾	0.23	–
Qin et al.	2023	0.33	0.28	–	79	–	–	–	–
Just et al.	2023	–	–	–	501	–	5	–	–
He et al.	2022	–	0.05	–	79	–	–	–	–
Tarricq et al.	2022	0.30	–	–	214	–	–	–	–
Dias et al.	2021	0.30	0.08	–	281	-0.089	–	–	–
Cantat-Gaudin et al.	2020	0.30	0.00	–	214	–	–	–	–
Cantat-Gaudin & Anders	2020	0.30	–	–	–	–	–	–	–
Bossini et al.	2019	0.28	0.07	–	110	0.000	–	–	–
Soubiran et al.	2018	0.30	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	0.30	–	–	–	–	–	–	–
Loktin & Popova	2017	0.42	0.06	–	275	–	–	–	–
Kharchenko et al.	2016	0.40	0.07	–	501	–	–	–	–
Kharchenko et al.	2013	0.40	0.07	–	501	–	–	–	–
Piskunov et al.	2008	0.37	0.06	–	275	–	–	–	–
Kharchenko et al.	2005	0.37	0.06	–	275	–	–	–	–
Dias et al.	2002	0.37	0.06	–	275	–	–	–	–

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

Visualization

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