Ruprecht 136

(MWSC 2765; OCL 15; ESO 521 04)

0.21 UTI

0.0

C_N

0.17

C_dens

0.12

C_C3

0.38

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 16

Radius (P>50% members) 5.4 [arcmin]

C_N 0.0 Sparse
C_dens 0.17 Very loose
C_C3 0.12 Very low quality
C_lit 0.38 Poorly studied
C_dup 1.0 Unique

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

Overview

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Ruprecht 136 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by moderate extinction. It is catalogued as an extremely massive, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~2.72 kpc) differs significantly from the median photometric distance (~4.51 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Distant Moderate extinction Extremely massive Intermediate age

Data

🔍 Search references for Ruprecht 136 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	–	269.858	-24.695	0.367	-1.331	-1.754	14.685
Just et al.	2023	269.816	-24.711	–	–	–	–
Bica et al.	2019	269.817	-24.695	–	–	–	–
Kharchenko et al.	2016	269.816	-24.711	–	–	–	–
Dias et al.	2014	269.825	-24.7	–	-2.09	-2.47	–
Kharchenko et al.	2013	269.824	-24.71	–	-0.8	-3.14	–
Dias et al.	2002	269.825	-24.7	–	-2.09	-2.47	–

💡 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
Just et al.	2023	–	–	–	251	–	16406	–	–
Kharchenko et al.	2016	4.51	2.19	–	251	–	–	–	–
Kharchenko et al.	2013	4.51	2.19	–	251	–	–	–	–
Dias et al.	2002	4.51	2.19	–	251	–	–	–	–

Visualization

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