IC 4291

0.00 UTI

0.75

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

0.0

C_dup

N₅₀ (P>50% members) 105

Stellar density (N₅₀/rad) 102.9 [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 0.0 Rarely studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

IC 4291 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 12 years.

⚠️ 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.

(*): The parallax distance estimate (~2.89 kpc) differs significantly from the median photometric distance (~1790.00 kpc).

Extremely distant Moderate extinction Intermediate age

Data

🔍 Search references for IC 4291 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	204.226	-62.09	0.346	-5.707	-2.275	-28.643
Tadross	2014	204.233	-62.096	–	–	–	–

💡 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–	1790.0	1.89	–	800	–	–	–	–
Tadross	2014	1790.00	1.89	–	800	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Pismis 18	100.0	204.23	-62.09	0.35	-5.7	-2.27	-28.58	0.97

💡 Note: The % column shows the percentage of members that IC 4291 shares with each listed object.

Visualization

ℹ️