UPK 549

UTI: UCC Trust Index C_N C_dens C_C3 C_lit C_dup 0.8 1.0 0.75 0.85 1.0 UPK 549 is a rich, very dense object of high C3 quality. It is well-studied in the literature. This object shares a large percentage of members with 2 later reported entries.
C3	N_50	r_50
AB	222	9.7

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Sim et al. (2019)	146.503	-52.497	–	-1.69	-0.43	–
Cantat-Gaudin et al. (2020)	146.49	-52.49	0.96	-1.676	-0.439	–
Dias et al. (2021)	146.496	-52.483	0.964	-1.663	-0.447	-4.075
He et al. (2022)	146.482	-52.481	0.978	-1.661	-0.409	–
Tarricq et al. (2022)	146.5	-52.49	0.981	-1.663	-0.408	–
Hunt & Reffert (2023)	146.483	-52.482	0.973	-1.649	-0.42	-5.823
Cavallo et al. (2024)	146.483	-52.477	0.972	–	–	–
Hunt & Reffert (2024)	146.483	-52.482	0.973	-1.649	-0.42	-5.823
Hu & Soubiran (2025)	146.483	-52.477	–	–	–	–
UCC	146.464	-52.49	0.978	-1.65	-0.413	-4.495

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Estimated members

1 2 3

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Fundamental parameters

Reference	Values
Sim et al. (2019)	d_pc=1010, log(age)=9.05
Cantat-Gaudin et al. (2020)	AVNN=0.8, DMNN=10.03, AgeNN=8.97
Dias et al. (2021)	Av=1.363, Dist=996, logage=8.989, [Fe/H]=0.123
He et al. (2022)	A0=1.5, logAge=8.9
Tarricq et al. (2022)	Dist=991, logAgeNN=8.99
Hunt & Reffert (2023)	AV50=1.425, diffAV50=1.648, MOD50=9.968, logAge50=8.566
Cavallo et al. (2024)	AV50=1.42, dMod50=9.97, logAge50=8.89, [Fe/H]50=0.17
Hunt & Reffert (2024)	MassJ=778.205
Hu & Soubiran (2025)	MA22=-0.01, MA23f=-0.15, MA23g=-0.1, MZ23=-0.07, MK24=-0.13, MF24=-0.16

Search coordinates in Bayestar19

Cluster region

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 256	99.1	146.46	-52.49	0.98	-1.65	-0.41	-4.5	0.02
FoF 2236	90.1	146.46	-52.49	0.98	-1.65	-0.41	-4.43	0.0