SAI 16

(MWSC 165)

0.62 UTI

0.72

C_N

0.51

C_dens

0.38

C_C3

0.74

C_lit

1.0

C_dup

N_m (P>50%) 93

Core radius and density 1.6 [pc], 2.6 [pc^-2]

C3 classification CB

C_N 0.72 Moderately populated
C_dens 0.51 Moderately dense
C_C3 0.38 Low quality
C_lit 0.74 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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SAI 16 is a moderately populated, moderately dense object of low C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is moderately studied in the literature.

Note: This object contains blue stragglers according to at least one source.

Distant Moderate extinction Near-solar metallicity Old Contains BSS

Cavallo et al. (2024)
Bronze sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.49 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.49 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.4976, e_all=0.1555.

Data

🔍 Search references for SAI 16 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–	31.377	62.267	0.181	-0.796	-0.388	-81.657
Otto et al.	2026	31.39	62.265	–	-0.72	-0.3	-61.3
Hunt & Reffert	2024	31.39	62.265	0.212	-0.799	-0.35	-56.257
Cavallo et al.	2024	31.308	62.304	0.219	–	–	–
Hunt & Reffert	2023	31.39	62.265	0.212	-0.799	-0.35	-56.257
Just et al.	2023	31.4	62.263	–	–	–	–
Jadhav & Subramaniam	2021	31.366	62.265	–	–	–	–
Netopil et al.	2022	31.365	62.265	–	–	–	-61.2
Spina et al.	2021	31.377	62.263	0.161	-0.741	-0.344	–
Cantat-Gaudin et al.	2020	31.366	62.265	0.157	-0.725	-0.305	–
Donor et al.	2020	31.413	62.265	–	-0.7	-0.37	-61.2
Cantat-Gaudin & Anders	2020	31.366	62.265	0.157	-0.725	-0.305	–
Soubiran et al.	2018	31.366	62.265	–	–	–	-65.59
Bica et al.	2019	31.372	62.264	–	–	–	–
Cantat-Gaudin et al.	2018	31.366	62.265	0.157	-0.725	-0.305	–
Dias et al.	2018	–	–	–	1.1	-0.81	–
Loktin & Popova	2017	31.38	62.265	–	0.108	-1.188	–
Sampedro et al.	2017	31.375	62.265	–	-2.26	-0.7	–
Kharchenko et al.	2016	31.4	62.263	–	–	–	–
Dias et al.	2014	31.375	62.265	–	-1.87	-0.91	–
Kharchenko et al.	2013	31.413	62.265	–	-0.31	-1.42	–
Kharchenko et al.	2012	31.413	62.265	–	-0.31	-1.42	–
Glushkova et al.	2010	31.373	62.265	–	–	–	–
Dias et al.	2002	31.375	62.265	–	-1.87	-0.91	–

💡 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–	4.89	2.54	2.29	1000	-0.275	778	–	2
Otto et al.	2026	–	–	–	1000	-0.270⁽¹⁵⁾	–	–	–
Hunt & Reffert	2024	3.89	2.54	2.29	272	–	962⁽¹⁾	–	–
Cavallo et al.	2024	4.00	2.35	–	269	0.140	–	–	–
Hunt & Reffert	2023	3.89	2.54	2.29	272	–	–	–	–
Just et al.	2023	–	–	–	1413	–	366	–	–
Spina et al.	2022	–	–	–	–	-0.280	–	–	–
Jadhav & Subramaniam	2021	4.90	2.68	–	1000	–	778	–	2⁽¹⁾
Netopil et al.	2022	4.89⁽¹⁾	–	–	1000	-0.280⁽¹⁾	–	–	–
Spina et al.	2021	5.17	–	–	1000	-0.191⁽²⁰⁾	–	–	–
Cantat-Gaudin et al.	2020	4.90	2.68	–	1000	–	–	–	–
Kounkel et al.	2020	4.39	2.51	–	692	–	–	–	–
Donor et al.	2020	–	–	–	–	-0.280	–	–	–
Cantat-Gaudin & Anders	2020	5.37	–	–	–	–	–	–	–
Soubiran et al.	2018	5.37	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	5.37	–	–	–	–	–	–	–
Loktin & Popova	2017	1.96	2.52	–	1413	–	–	–	–
Kharchenko et al.	2016	4.74	3.15	–	1413	–	–	–	–
Kharchenko et al.	2013	4.74	3.15	–	1413	–	–	–	–
Kharchenko et al.	2012	4.74	3.15	–	1413	–	–	–	–
Glushkova et al.	2010	7.70	2.21	–	1413	–	–	–	–
Dias et al.	2002	7.70	2.21	–	1413	–	–	–	–

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

Visualization

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