IC 2156

(MWSC 723)

0.46 UTI

0.32

C_N

0.46

C_dens

0.5

C_C3

0.5

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 32

Radius (P>50% members) 4.8 [arcmin]

C_N 0.32 Poorly populated
C_dens 0.46 Loose
C_C3 0.5 Intermediate quality
C_lit 0.5 Moderately studied
C_dup 1.0 Unique

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

Overview

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IC 2156 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for IC 2156 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	–	91.244	24.141	0.375	0.765	-2.413	59.864
Zhang et al.	2024	91.228	24.146	–	–	–	–
Hunt & Reffert	2024	91.228	24.146	0.378	0.781	-2.415	–
Cavallo et al.	2024	91.248	24.143	0.377	–	–	–
Hunt & Reffert	2023	91.228	24.146	0.378	0.781	-2.415	–
Bica et al.	2019	91.21	24.082	–	–	–	–
Loktin & Popova	2017	91.215	24.158	–	-0.031	-0.555	–
Dias et al.	2014	91.213	24.158	–	-1.96	-2.51	–
Dias et al.	2002	91.213	24.158	–	-1.96	-2.51	–

💡 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
Zhang et al.	2024	–	–	–	–	-0.158*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	264*	–	–
Cavallo et al.	2024	2.79	1.66	–	46	0.240	–	–	–
Hunt & Reffert	2023	2.49	1.56	0.46	29	–	–	–	–
Loktin & Popova	2017	3.63	1.76	–	4	–	–	–	–
Dias et al.	2002	2.10	2.08	–	251	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 1302	90.6	91.24	24.14	0.38	0.76	-2.41	–	0.0

💡 Note: The % column shows the percentage of members that IC 2156 shares with each listed object.

Visualization

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