Turner 3

(MWSC 2875)

0.58 UTI

0.64

C_N

0.22

C_dens

1.0

C_C3

0.52

C_lit

1.0

C_dup

N_m (P>50%) 79

Core radius and density 2.7 [pc], 1.1 [pc^-2]

C3 classification AA

C_N 0.64 Moderately populated
C_dens 0.22 Very loose
C_C3 1.0 Very high quality
C_lit 0.52 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Turner 3 is a moderately populated, very loose object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, young cluster, but with a large variance across recent sources for the distance, age, and mass parameters (see Parameters). It is moderately studied in the literature.

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

Relatively close Moderate extinction Metal-poor Young

Liu et al. (2025)
Classified as primordial binary cluster 273 along with Markarian_38, and of multiple system 46 along with Markarian_38 and HSC_153.

Palma et al. (2025)
Part of multiple system G214, along with HSC_153 and Markarian_38.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.94 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.94 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.3868, e_all=0.2329.

Bica et al. (2019)
Web updates in DAML02, some were later removed (2003 to 2010). Asterisms and cluster alikes by B. Alessi reported in DAML02.

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

Data

🔍 Search references for Turner 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–	274.373	-18.95	0.566	0.523	-2.468	-45.669
Liu et al.	2025	274.34	-19.1	0.55	0.6	-2.43	-45.66
Hunt & Reffert	2024	274.342	-19.096	0.553	0.598	-2.427	-45.66
Cavallo et al.	2024	274.353	-19.029	0.553	–	–	–
Hunt & Reffert	2023	274.342	-19.096	0.553	0.598	-2.427	-45.66
Just et al.	2023	274.312	-19.121	–	–	–	–
Cantat-Gaudin et al.	2020	274.393	-18.875	0.584	0.474	-2.504	–
Cantat-Gaudin & Anders	2020	274.393	-18.875	0.584	0.474	-2.504	–
Cantat-Gaudin et al.	2018	274.393	-18.875	0.584	0.474	-2.504	–
Dias et al.	2018	–	–	–	-1.16	-2.96	–
Dib et al.	2018	274.32	-19.12	–	–	–	–
Joshi et al.	2016	274.32	-19.12	–	–	–	–
Kharchenko et al.	2016	274.312	-19.121	–	–	–	–
Dias et al.	2014	274.392	-18.864	–	1.0	0.05	–
Kharchenko et al.	2013	274.32	-19.12	–	2.4	-1.43	-15.7
Morales et al.	2013	274.392	-18.864	–	–	–	–
Bukowiecki et al.	2011	274.383	-18.867	–	–	–	–
Dias et al.	2002	274.392	-18.864	–	2.4	-1.43	–

💡 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–	1.65	2.56	2.81	29	-0.730	403	–	–
Liu et al.	2025	4.81	0.83	–	19	–	–	–	–
Hunt & Reffert	2024	1.67	2.16	2.81	33	–	778⁽¹⁾	–	–
Cavallo et al.	2024	1.35	2.56	–	120	-0.730	–	–	–
Hunt & Reffert	2023	1.67	2.16	2.81	33	–	–	–	–
Just et al.	2023	–	–	–	29	–	28	–	–
Cantat-Gaudin et al.	2020	1.72	1.81	–	98	–	–	–	–
Kounkel et al.	2020	1.75	2.70	–	71	–	–	–	–
Cantat-Gaudin & Anders	2020	1.63	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.63	–	–	–	–	–	–	–
Dib et al.	2018	1.39	–	–	29	–	–	–	–
Joshi et al.	2016	1.39	2.76	–	29	–	–	–	–
Kharchenko et al.	2016	1.39	2.76	–	29	–	–	–	–
Kharchenko et al.	2013	1.39	2.76	–	29	–	–	–	–
Morales et al.	2013	1.79	–	–	29	–	–	–	–
Dias et al.	2002	1.79	–	–	29	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0021	24.1	274.35	-19.09	0.55	0.68	-2.41	–	0.33

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

Visualization

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