Ruprecht 153

0.07 UTI

0.0

C_N

0.12

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 19

Radius (P>50% members) 4.9 [arcmin]

C_N 0.0 Sparse
C_dens 0.12 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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Ruprecht 153 is a sparse, very loose object of low 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, intermediate-age cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 12 years.

(*): The parallax distance estimate (~3.97 kpc) differs significantly from the median photometric distance (~1.85 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.

Relatively close Low extinction Near-solar metallicity Intermediate age

Data

🔍 Search references for Ruprecht 153 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	–	120.09	-30.3	0.252	-2.79	3.117	–
Dias et al.	2014	120.079	-30.283	–	-2.4	-0.39	–
Dias et al.	2002	120.079	-30.283	–	-2.4	-0.39	–

💡 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
Dias et al.	2002	1.85	0.64	–	447	0.100	–	–	–

Visualization

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