Alessi 31

(ASCC 92; MWSC 2723; FoF 2356)

UTI: UCC Trust Index C_N C_dens C_C3 C_lit C_dup 0.78 1.0 1.0 1.0 1.0
C3	N_50	r_50
AA	175	15.6

Summary

Alessi 31 is a rich, very dense object of very high C3 quality. It is located at a close distance from the Sun, above the mid-plane. It is very well-studied in the literature.

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Dias et al. (2002)	267.675	-12.002	–	-5.29	-2.16	–
Kharchenko et al. (2012)	267.78	-11.88	–	-6.63	-5.53	–
Bica et al. (2019)	267.68	-12.002	–	–	–	–
Liu & Pang (2019)	267.752	-11.835	1.474	-1.157	-4.115	–
Cantat-Gaudin et al. (2020)	267.698	-11.853	1.477	-1.164	-4.122	–
Dias et al. (2021)	267.665	-11.882	1.483	-1.189	-4.091	–
Tarricq et al. (2022)	267.747	-11.87	1.503	-1.137	-4.177	–
He et al. (2022)	267.741	-11.859	1.481	-1.136	-4.208	–
Hunt & Reffert (2023)	267.748	-11.857	1.473	-1.13	-4.167	3.514
Cavallo et al. (2024)	267.715	-11.845	1.474	–	–	–
Hunt & Reffert (2024)	267.748	-11.857	1.473	-1.13	-4.167	3.514
Alfonso et al. (2024)	267.719	-11.85	1.442	-1.139	-4.178	–
UCC	267.715	-11.837	1.476	-1.147	-4.172	2.939

Galactocentric position

How are the galactocentric plots generated?

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Estimated members

1 2 3

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Fundamental parameters

Reference	Values
Dias et al. (2002)	E(B-V)=0.25, Dist=650.0, Age=9.01
Kharchenko et al. (2012)	e_bv=0.312, distance=644, log_age=9.08
Liu & Pang (2019)	Age=0.347, Z=0.25
Cantat-Gaudin et al. (2020)	AVNN=1.75, DMNN=9.26, AgeNN=8.38
Dias et al. (2021)	Av=2.147, Dist=651, logage=8.054, [Fe/H]=0.359
Tarricq et al. (2022)	Dist=697, logAgeNN=8.4
He et al. (2022)	A0=2.7, logAge=7.6
Hunt & Reffert (2023)	AV50=2.234, diffAV50=2.503, MOD50=9.036, logAge50=8.175
Cavallo et al. (2024)	AV50=2.37, dMod50=9.24, logAge50=8.1, [Fe/H]50=0.32
Hunt & Reffert (2024)	MassJ=667.731
Alfonso et al. (2024)	AV=1.74931, MOD=9.26025, logAge=7.89681, Z=0.35875

Search coordinates in Bayestar19

Cluster region