Haffner 11

(VDBH 3; MWSC 1273; OCL 657; vdBergh-Hagen 3; ESO 429 03; FSR 1310)

0.84 UTI

0.84

C_N

1.0

C_dens

0.75

C_C3

0.81

C_lit

1.0

C_dup

N₅₀ (P>50% members) 353

Stellar density (N₅₀/rad) 14.6 [N/pc²]

C3 classification AB

C_N 0.84 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.81 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Haffner 11 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is well-studied in the literature.

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

Very distant Moderate extinction Massive Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for Haffner 11 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–	113.854	-27.707	0.16	-1.499	3.157	97.917
Li et al.	2025	113.855	-27.708	0.138	-1.465	3.149	–
Hu & Soubiran	2025	113.855	-27.71	–	–	–	–
Almeida et al.	2025	113.866	-27.71	–	–	–	–
Hunt & Reffert	2024	113.841	-27.714	0.159	-1.509	3.137	93.211
Cavallo et al.	2024	113.855	-27.71	0.153	–	–	–
Hunt & Reffert	2023	113.841	-27.714	0.159	-1.509	3.137	93.211
Angelo et al.	2023	113.842	-27.7	–	-1.5	3.16	–
Just et al.	2023	113.84	-27.702	–	–	–	–
Jadhav & Subramaniam	2021	113.855	-27.708	–	–	–	–
Dias et al.	2021	113.866	-27.71	0.145	-1.475	3.157	98.935
Cantat-Gaudin et al.	2020	113.855	-27.708	0.138	-1.465	3.149	–
Sánchez et al.	2020	113.875	-27.7	–	-1.478	3.195	–
Cantat-Gaudin & Anders	2020	113.855	-27.708	0.138	-1.465	3.149	–
Bica et al.	2019	113.865	-27.706	–	–	–	–
Cantat-Gaudin et al.	2018	113.855	-27.708	0.138	-1.465	3.149	–
Dias et al.	2018	–	–	–	-2.23	3.25	–
Loktin & Popova	2017	113.85	-27.703	–	-2.077	2.792	–
Sampedro et al.	2017	113.875	-27.7	-1.99	2.52	–	–
Kharchenko et al.	2016	113.84	-27.702	–	–	–	–
Dias et al.	2014	113.875	-27.7	–	-1.78	2.28	–
Kharchenko et al.	2013	113.845	-27.705	–	-1.97	2.88	–
Bukowiecki et al.	2011	113.846	-27.71	–	–	–	–
Dias et al.	2002	113.875	-27.7	–	-1.78	2.28	–
Lynga	1987	113.857	-27.733	–	–	–	–
van den Bergh & Hagen	1975	113.35	-27.617	–	–	–	–

💡 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–	5.47	1.58	1.67	848	-0.149	1413	–	0
Li et al.	2025	5.47	1.88	–	761	-0.143	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.220⁽⁵⁾	–	–	–
Almeida et al.	2025	4.89	1.91	–	815	–	1413	–	–
Hunt & Reffert	2024	–	–	–	–	–	3122⁽¹⁾	–	–
Cavallo et al.	2024	5.04	2.15	–	537	-0.240	–	–	–
Hunt & Reffert	2023	5.48	1.86	1.67	573	–	–	–	–
Angelo et al.	2023	4.79	1.86	–	891	-0.060	5⁽¹⁾	–	–
Just et al.	2023	–	–	–	881	–	1169	–	–
Jadhav & Subramaniam	2021	5.60	1.56	–	933	–	2903	–	0⁽¹⁾
Dias et al.	2021	4.89	1.91	–	815	-0.155	–	–	–
Cantat-Gaudin et al.	2020	5.60	1.56	–	933	–	–	–	–
Kounkel et al.	2020	4.82	1.58	–	794	–	–	–	–
Cantat-Gaudin & Anders	2020	6.00	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	6.00	–	–	–	–	–	–	–
Loktin & Popova	2017	4.54	0.95	–	1072	–	–	–	–
Kharchenko et al.	2016	5.16	1.31	–	881	–	–	–	–
Perren et al.	2015	6.60⁽¹⁾	1.74⁽¹⁾	–	631⁽¹⁾	0.050⁽¹⁾	–	–	–
Kharchenko et al.	2013	5.16	1.31	–	881	–	–	–	–
Bukowiecki et al.	2011	5.63⁽¹⁾	1.23	–	2818	–	–	–	–
Dias et al.	2002	5.80	1.58	–	794	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Alessi 66	67.7	113.86	-27.71	0.16	-1.51	3.12	98.11	0.04

💡 Note: The % column shows the percentage of members that Haffner 11 shares with each listed object.

Visualization

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