Mayer 3

0.60 UTI

0.57

C_N

0.6

C_dens

1.0

C_C3

0.42

C_lit

1.0

C_dup

N_m (P>50%) 65

Core radius and density 1.6 [pc], 3.0 [pc^-2]

C3 classification AA

C_N 0.57 Moderately populated
C_dens 0.6 Moderately dense
C_C3 1.0 Very high quality
C_lit 0.42 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Mayer 3 is a moderately populated, moderately dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.

Distant High extinction Near-solar metallicity Very young

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.10 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.10 (50th percentile).

Data

🔍 Search references for Mayer 3 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–	112.52	-18.552	0.235	-1.884	2.356	219.515
Hunt & Reffert	2024	112.525	-18.546	0.224	-1.865	2.353	44.488
Cavallo et al.	2024	112.519	-18.557	0.226	–	–	–
Hunt & Reffert	2023	112.525	-18.546	0.224	-1.865	2.353	44.488
Cantat-Gaudin et al.	2020	112.523	-18.553	0.209	-1.892	2.336	–
Cantat-Gaudin & Anders	2020	112.523	-18.553	0.209	-1.892	2.336	–
Cantat-Gaudin et al.	2018	112.523	-18.553	0.209	-1.892	2.336	–
Dias et al.	2018	–	–	–	-2.54	3.04	–
Loktin & Popova	2017	112.53	-18.535	–	-0.158	4.371	–
Sampedro et al.	2017	112.525	-18.533	–	1.16	1.15	–
Dias et al.	2014	112.525	-18.533	–	0.55	2.06	–
Bukowiecki et al.	2011	112.521	-18.545	–	–	–	–
Dias et al.	2002	112.525	-18.533	–	0.55	2.06	–
Lynga	1987	112.35	-18.528	–	–	–	–

💡 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–	3.45	3.15	2.33	13	0.270	342	–	–
Hunt & Reffert	2024	4.20	3.71	2.33	9	–	414⁽¹⁾	–	–
Cavallo et al.	2024	3.45	3.42	–	85	0.270	–	–	–
Hunt & Reffert	2023	4.20	3.71	2.33	9	–	–	–	–
Kounkel et al.	2020	2.96	3.08	–	4	–	–	–	–
Cantat-Gaudin & Anders	2020	4.21	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	4.21	–	–	–	–	–	–	–
Loktin & Popova	2017	2.34	1.64	–	1413	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	270	–	–
Bukowiecki et al.	2011	2.52⁽¹⁾	3.06	–	13	–	–	–	–
Dias et al.	2002	2.49	3.15	–	13	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
DBSB 5	100.0	112.52	-18.55	0.24	-1.88	2.37	219.52	0.08
S 305	92.3	112.51	-18.55	0.23	-1.89	2.36	219.52	0.0

💡 Note: The % column shows the percentage of members that Mayer 3 shares with each listed object.

Visualization

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