Ruprecht 139

(MWSC 2776; OCL 20; ESO 521 10)

0.81 UTI

0.79

C_N

1.0

C_dens

0.75

C_C3

0.78

C_lit

0.98

C_dup

N₅₀ (P>50% members) 199

Stellar density (N₅₀/rad) 7.8 [N/pc²]

C3 classification AB

C_N 0.79 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.78 Well-studied
C_dup 0.98 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Ruprecht 139 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.

(*): The parallax distance estimate (~3.15 kpc) differs significantly from the median photometric distance (~0.59 kpc).

Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.

Close Low extinction Near-solar metallicity Old

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: one or a few submm emission within the cluster area.

Cavallo et al. (2024)
Silver sample.

Data

🔍 Search references for Ruprecht 139 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–	270.229	-23.526	0.318	-0.009	-1.413	1.346
Hunt & Reffert	2024	270.236	-23.545	0.291	0.011	-1.416	-31.414
Cavallo et al.	2024	270.24	-23.528	0.291	–	–	–
Hunt & Reffert	2023	270.236	-23.545	0.291	0.011	-1.416	-31.414
Just et al.	2023	270.239	-23.536	–	–	–	–
Bica et al.	2019	270.242	-23.535	–	–	–	–
Kharchenko et al.	2016	270.239	-23.536	–	–	–	–
Dias et al.	2014	270.263	-23.533	–	-1.77	-1.41	–
Kharchenko et al.	2013	270.247	-23.535	–	0.46	-3.87	–
Morales et al.	2013	270.262	-23.533	–	–	–	–
Bukowiecki et al.	2011	270.271	-23.526	–	–	–	–
Piskunov et al.	2008	270.248	-23.526	–	–	–	–
Kharchenko et al.	2005	270.25	-23.53	–	-1.1	-2.19	–
Kharchenko et al.	2003	270.25	-23.52	–	-0.48	-1.77	–
Dias et al.	2002	270.262	-23.533	–	-1.77	-1.41	–

💡 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–	0.59	0.46	2.68	1122	-0.050	232	–	–
Hunt & Reffert	2024	–	–	–	–	–	1070⁽¹⁾	–	–
Cavallo et al.	2024	3.12	4.22	–	11	-0.050	–	–	–
Hunt & Reffert	2023	3.12	4.03	2.68	11	–	–	–	–
Just et al.	2023	–	–	–	1122	–	13	–	–
Kharchenko et al.	2016	0.59	0.32	–	1122	–	–	–	–
Kharchenko et al.	2013	0.59	0.32	–	1122	–	–	–	–
Morales et al.	2013	0.55	–	–	1122	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	232	–	–
Bukowiecki et al.	2011	0.62⁽¹⁾	0.06	–	1413	–	–	–	–
Piskunov et al.	2008	0.55	0.46	–	1122	–	–	–	–
Kharchenko et al.	2005	0.55	0.46	–	1122	–	–	–	–
Kharchenko et al.	2003	0.83	0.46	–	–	–	–	–	–
Dias et al.	2002	0.55	0.46	–	1122	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Bochum 14	1.5	270.5	-23.7	0.31	0.25	-1.12	110.24	0.84
CWNU 1465	0.5	270.37	-23.54	0.34	-0.44	-1.64	22.07	0.59

💡 Note: The % column shows the percentage of members that Ruprecht 139 shares with each listed object.

Visualization

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