IC 2944

(MWSC 1957)

0.95 UTI

0.75

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 106

Stellar density (N₅₀/rad) 26.5 [N/pc²]

C3 classification AA

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

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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IC 2944 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is very well-studied in the literature.

(*): The parallax distance estimate (~2.55 kpc) differs significantly from the median photometric distance (~1.79 kpc).

Note: This object shares a large percentage of members with 3 later reported entries. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Very young

Liu et al. (2025)
Classified as primordial binary cluster 268 along with Ruprecht_94, and as primordial binary cluster 339 along with Stock_14, and of multiple system 74 along with Stock_14 and Ruprecht_94.

Palma et al. (2025)
Part of multiple system G208, along with Stock_14 and Ruprecht_94.

Cavallo et al. (2024)
Silver sample.

Data

🔍 Search references for IC 2944 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–	174.565	-63.366	0.393	-6.09	0.659	0.021
Liu et al.	2025	174.6	-63.38	0.39	-6.08	0.69	5.01
Hunt & Reffert	2024	174.599	-63.381	0.391	-6.08	0.694	5.006
Cavallo et al.	2024	174.55	-63.364	0.39	–	–	–
Hunt & Reffert	2023	174.599	-63.381	0.391	-6.08	0.694	5.006
Just et al.	2023	174.045	-62.946	–	–	–	–
Jaehnig et al.	2021	174.837	-63.246	0.494	-5.937	0.79	–
Loktin & Popova	2017	174.585	-63.373	–	-5.16	-2.39	-0.9
Kharchenko et al.	2016	174.045	-62.946	–	–	–	–
Dias et al.	2014	174.583	-63.373	–	-5.16	-2.39	–
Kharchenko et al.	2013	174.052	-62.95	–	-7.04	-1.07	-0.9
Gozha et al.	2012	174.583	-63.373	–	–	–	–
Piskunov et al.	2008	174.031	-62.951	–	–	–	–
Kharchenko et al.	2007	174.58	-63.37	–	0.24	–	–
van den Bergh	2006	174.585	-63.373	–	–	–	–
Kharchenko et al.	2005	174.03	-62.95	–	-6.2	-1.17	–
Kharchenko et al.	2003	174.03	-62.95	–	-5.41	-0.43	–
Chen et al.	2003	174.213	-63.059	–	-5.39	0.04	-1.0
Dias et al.	2002	174.583	-63.373	–	-5.16	-2.39	-2.41
Dambis	1999	174.585	-63.373	–	–	–	–

💡 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–	1.79	0.99	1.36	7	-0.060	414	–	–
Liu et al.	2025	1.79	0.34	–	10	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	308⁽¹⁾	–	–
Cavallo et al.	2024	2.48	1.00	–	15	-0.060	–	–	–
Hunt & Reffert	2023	2.37	1.11	1.36	4	–	–	–	–
Just et al.	2023	–	–	–	2	–	414	–	–
Jaehnig et al.	2021	2.03⁽¹⁾	–	–	–	–	–	–	–
Loktin & Popova	2017	1.79	0.99	–	7	–	–	–	–
Kharchenko et al.	2016	2.10	1.35	–	2	–	–	–	–
Kharchenko et al.	2013	2.10	1.35	–	2	–	–	–	–
Gozha et al.	2012	1.79	–	–	7	–	2692	–	–
Piskunov et al.	2008	1.79	0.99	–	8	–	–	–	–
van den Bergh	2006	1.79	0.99	–	7	–	–	–	–
Kharchenko et al.	2005	1.79	0.99	–	8	–	–	–	–
Kharchenko et al.	2003	1.79	0.99	–	–	–	–	–	–
Chen et al.	2003	1.79	–	–	0	–	–	–	–
Dias et al.	2002	1.79	0.99	–	7	–	–	–	–
Dambis	1999	2.07	1.10	–	3	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
VDBH 121	100.0	174.69	-63.4	0.4	-6.01	0.65	0.02	0.69
CWWDL 864	6.6	174.28	-63.27	0.39	-6.15	0.9	4.55	0.23
VVV 005	5.7	174.74	-63.47	0.4	-5.95	0.51	-45.44	0.0

💡 Note: The % column shows the percentage of members that IC 2944 shares with each listed object.

Visualization

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