PHOC 17

0.49 UTI

0.75

C_N

1.0

C_dens

1.0

C_C3

0.25

C_lit

0.75

C_dup

N₅₀ (P>50% members) 109

Stellar density (N₅₀/rad) 20.0 [N/pc²]

C3 classification AA

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.25 Poorly studied
C_dup 0.75 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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PHOC 17 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by very high extinction. It is catalogued as a massive, metal-rich, very young cluster (see Parameters). It is poorly studied in the literature.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Very high extinction Massive Metal-rich Very young

Palma et al. (2025)
Part of multiple system G173, along with UFMG_66 and HSC_2929.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for PHOC 17 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–	261.171	-34.685	0.599	-1.277	-3.123	-1.583
Hunt & Reffert	2024	261.175	-34.705	0.592	-1.251	-3.125	28.132
Cavallo et al.	2024	261.169	-34.687	0.592	–	–	–
Hunt & Reffert	2023	261.175	-34.705	0.592	-1.251	-3.125	28.132
Hunt & Reffert	2021	261.174	-34.687	0.558	-1.265	-3.105	–

💡 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–	1.66	5.175	1.95	12	0.870	1309	–	–
Hunt & Reffert	2024	–	–	–	–	–	1309⁽¹⁾	–	–
Cavallo et al.	2024	1.70	4.97	–	17	0.870	–	–	–
Hunt & Reffert	2023	1.62	5.38	1.95	6	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UFMG 76	63.3	261.17	-34.69	0.59	-1.24	-3.13	-1.58	0.0
CWWDL 13876	45.0	261.16	-34.69	0.6	-1.26	-3.15	-1.58	0.0
G3CC 47	24.8	260.85	-34.8	0.6	-0.86	-3.02	-14.93	0.44

💡 Note: The % column shows the percentage of members that PHOC 17 shares with each listed object.

Visualization

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