Bochum 13

(MWSC 2559)

0.90 UTI

0.75

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 105

Radius (P>50% members) 6.3 [arcmin]

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Bochum 13 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is very well-studied in the literature.

(*): The parallax distance estimate (~1.76 kpc) differs significantly from the median photometric distance (~1.34 kpc).

Relatively close Moderate extinction Near-solar metallicity Very young

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Bochum 13 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	–	259.336	-35.533	0.569	-0.281	-1.255	-62.148
Almeida et al.	2025	259.324	-35.535	–	–	–	–
Hunt & Reffert	2024	259.333	-35.534	0.57	-0.255	-1.295	-28.177
Celli et al.	2024	259.333	-35.529	–	–	–	–
Cavallo et al.	2024	259.347	-35.588	0.572	–	–	–
Hunt & Reffert	2023	259.333	-35.534	0.57	-0.255	-1.295	-28.177
Just et al.	2023	259.321	-35.55	–	–	–	–
Dias et al.	2021	259.324	-35.535	0.57	-0.282	-1.276	–
Cantat-Gaudin et al.	2020	259.333	-35.529	0.567	-0.286	-1.284	–
Sánchez et al.	2020	259.35	-35.55	–	-0.215	-1.28	–
Cantat-Gaudin & Anders	2020	259.333	-35.529	0.567	-0.286	-1.284	–
Soubiran et al.	2018	259.333	-35.529	–	–	–	-20.76
Cantat-Gaudin et al.	2018	259.333	-35.529	0.567	-0.286	-1.284	–
Loktin & Popova	2017	259.35	-35.551	–	0.643	-5.067	-2.5
Kharchenko et al.	2016	259.321	-35.55	–	–	–	–
Dias et al.	2014	259.35	-35.55	–	-1.72	-1.94	–
Kharchenko et al.	2013	259.33	-35.55	–	-0.6	-2.19	-2.5
Gozha et al.	2012	259.35	-35.55	–	–	–	–
Piskunov et al.	2008	259.339	-35.545	–	–	–	–
Kharchenko et al.	2007	259.35	-35.55	–	0.18	–	-2.5
van den Bergh	2006	259.35	-35.55	–	–	–	–
Kharchenko et al.	2005	259.35	-35.55	–	-0.28	-1.2	-2.5
Kharchenko et al.	2003	259.33	-35.54	–	-1.4	-2.01	–
Dias et al.	2002	259.35	-35.55	–	0.26	-1.56	-1.93
Dambis	1999	259.35	-35.55	–	–	–	–

💡 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]	Bfr	BSS
Almeida et al.	2025	1.61	2.50	–	9	–	505	–	–
Hunt & Reffert	2024	–	–	–	–	–	1353*	–	–
Celli et al.	2024	–	–	–	9	–	494	–	–
Cavallo et al.	2024	1.52	2.88	–	9	-0.030	–	–	–
Hunt & Reffert	2023	1.65	2.94	1.89	5	–	–	–	–
Just et al.	2023	–	–	–	18	–	127	–	–
Dias et al.	2021	1.61	2.50	–	9	0.299	–	–	–
Cantat-Gaudin et al.	2020	1.67	2.63	–	9	–	–	–	–
Cantat-Gaudin & Anders	2020	1.68	–	–	–	–	–	–	–
Soubiran et al.	2018	1.68	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.68	–	–	–	–	–	–	–
Loktin & Popova	2017	1.10	2.57	–	10	–	–	–	–
Kharchenko et al.	2016	1.34	2.55	–	18	–	–	–	–
Kharchenko et al.	2013	1.34	2.55	–	18	–	–	–	–
Gozha et al.	2012	1.08	–	–	7	–	302	–	–
Piskunov et al.	2008	1.08	2.45	–	12	–	–	–	–
van den Bergh	2006	1.08	2.63	–	7	–	–	–	–
Kharchenko et al.	2005	1.08	2.45	–	12	–	–	–	–
Kharchenko et al.	2003	1.08	2.48	–	–	–	–	–	–
Dias et al.	2002	1.08	2.65	–	7	–	–	–	–
Dambis	1999	1.27	2.49	–	3	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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