SAI 123

0.70 UTI

0.8

C_N

1.0

C_dens

1.0

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 240

Stellar density (N₅₀/rad) 57.2 [N/pc²]

C3 classification AA

C_N 0.8 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.35 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

SAI 123 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by very high extinction. It is catalogued as a very massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.35 kpc) differs significantly from the median photometric distance (~2.41 kpc).

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

Relatively close Very high extinction Very massive Near-solar metallicity Intermediate age

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

Cavallo et al. (2024)
Wood sample.

Data

🔍 Search references for SAI 123 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	242.082	-50.521	0.298	-2.79	-3.643	-44.614
Hunt & Reffert	2024	242.088	-50.522	0.3	-2.798	-3.631	-39.348
Cavallo et al.	2024	242.078	-50.515	0.292	–	–	–
Hunt & Reffert	2023	242.088	-50.522	0.3	-2.798	-3.631	-39.348
Bica et al.	2019	242.072	-50.54	–	–	–	–
Morales et al.	2013	242.072	-50.535	–	–	–	–
Glushkova et al.	2010	242.072	-50.535	–	–	–	–

💡 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–	2.41	5.83	2.26	968	0.360	6118	–	–
Hunt & Reffert	2024	–	–	–	–	–	6118⁽¹⁾	–	–
Cavallo et al.	2024	3.50	5.83	–	35	0.360	–	–	–
Hunt & Reffert	2023	2.96	6.32	2.26	352	–	–	–	–
Morales et al.	2013	1.86	–	–	1585	–	–	–	–
Glushkova et al.	2010	1.86	4.19	–	1585	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 1546	80.8	242.08	-50.52	0.29	-2.79	-3.64	-44.87	0.0

💡 Note: The % column shows the percentage of members that SAI 123 shares with each listed object.

Visualization

ℹ️

1 2