MCM 91

0.28 UTI

0.0

C_N

1.0

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 22

Stellar density (N₅₀/rad) 6.3 [N/pc²]

C3 classification BC

C_N 0.0 Sparse
C_dens 1.0 Very dense
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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MCM 91 is a sparse, very dense object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane. No fundamental parameter values are available for this object. It is rarely studied in the literature, with no articles listed in the last 21 years.

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

No fundamental parameters

Data

🔍 Search references for MCM 91 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–	258.094	-38.515	0.513	-1.024	-2.385	11.102
Mercer et al.	2005	258.11	-38.524	–	–	–	–

💡 Note: The UCC values are estimated from its identified members.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Ryu 401	8.0	257.95	-38.61	0.66	-1.41	-3.07	-39.66	0.23

💡 Note: The % column shows the percentage of members that MCM 91 shares with each listed object.

Visualization

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