IC 2948

(MWSC 1961)

0.02 UTI

0.79

C_N

1.0

C_dens

1.0

C_C3

0.81

C_lit

0.03

C_dup

N₅₀ (P>50% members) 195

Stellar density (N₅₀/rad) 24.4 [N/pc²]

C3 classification AA

C_N 0.79 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.81 Well-studied
C_dup 0.03 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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IC 2948 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 moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is well-studied in the literature.

⚠️ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Very young

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for IC 2948 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–	174.88	-63.459	0.401	-5.955	0.65	-11.676
Almeida et al.	2025	174.797	-63.445	–	–	–	–
Hunt & Reffert	2024	174.911	-63.472	0.403	-5.917	0.686	6.018
Cavallo et al.	2024	174.919	-63.464	0.403	–	–	–
Hunt & Reffert	2023	174.911	-63.472	0.403	-5.917	0.686	6.018
Almeida et al.	2023	174.788	-63.434	–	–	–	–
Just et al.	2023	174.795	-63.506	–	–	–	–
Dias et al.	2021	174.797	-63.445	0.387	-5.981	0.644	–
Cantat-Gaudin et al.	2020	174.822	-63.44	0.388	-5.968	0.647	–
Cantat-Gaudin & Anders	2020	174.822	-63.44	0.388	-5.968	0.647	–
Cantat-Gaudin et al.	2018	174.822	-63.44	0.388	-5.968	0.647	–
Kharchenko et al.	2016	174.795	-63.506	–	–	–	–
Kharchenko et al.	2013	174.802	-63.51	–	-4.46	-1.13	-0.3
Piskunov et al.	2008	174.845	-63.475	–	–	–	–
Kharchenko et al.	2007	174.84	-63.47	–	0.08	–	0.0
Kharchenko et al.	2005	174.84	-63.48	–	-4.58	-0.35	0.0

💡 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–	2.4	1.235	0.8	6	-0.007	726	0.68	–
Almeida et al.	2025	2.37	1.30	–	7	–	426	–	–
Hunt & Reffert	2024	–	–	–	–	–	233⁽¹⁾	–	–
Cavallo et al.	2024	1.94	1.17	–	10	-0.270	–	–	–
Hunt & Reffert	2023	2.26	1.16	0.80	5	–	–	–	–
Almeida et al.	2023	2.24	1.35	–	7	-0.007	1025⁽¹⁾	0.68	–
Just et al.	2023	–	–	–	4	–	1358	–	–
Dias et al.	2021	2.37	1.30	–	7	0.026	–	–	–
Cantat-Gaudin et al.	2020	2.51	1.16	–	6	–	–	–	–
Cantat-Gaudin & Anders	2020	2.40	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.40	–	–	–	–	–	–	–
Kharchenko et al.	2016	2.80	1.62	–	4	–	–	–	–
Kharchenko et al.	2013	2.80	1.62	–	4	–	–	–	–
Piskunov et al.	2008	2.60	0.93	–	6	–	–	–	–
Kharchenko et al.	2005	2.60	0.93	–	6	–	–	–	–

(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	97.4	174.69	-63.4	0.4	-6.01	0.65	0.02	0.7
VVV 005	13.8	174.74	-63.47	0.4	-5.95	0.51	-45.44	0.0

💡 Note: The % column shows the percentage of members that IC 2948 shares with each listed object.

Visualization

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