NGC 1981

UTI: UCC Trust Index C_N C_dens C_C3 C_lit C_dup 0.32 0.07 0.25 0.5 1.0
C3	N_50	r_50
CC	32	99.8

Summary

NGC 1981 is a poorly populated, very loose object of low C3 quality. It is located at a very close distance from the Sun, below the mid-plane. It is moderately studied in the literature.

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Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Dias et al. (2002)	83.783	-4.343	–	3.22	1.36	20.06
Piskunov et al. (2007)	83.788	-4.397	–	–	–	–
Piskunov et al. (2008)	83.788	-4.397	–	–	–	–
Loktin & Popova (2017)	83.79	-4.342	–	3.22	1.36	27.9
Donor et al. (2020)	83.775	-4.42	–	1.11	0.58	28.8
He et al. (2022)	80.513	-4.856	3.019	0.703	-0.834	–
UCC	82.163	-4.832	3.024	0.757	-0.603	17.536

Galactocentric position

How are the galactocentric plots generated?

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Estimated members

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Fundamental parameters

Reference	Values
Dias et al. (2002)	E(B-V)=0.07, Dist=380.0, Age=6.7
Piskunov et al. (2007)	E(B-V)=0.05, Dist=400, logt=7.5, logM=0.839
Piskunov et al. (2008)	E(B-V)=0.05, Dist=400, logt=7.5, logM=1.384, logMA=1.298
Loktin & Popova (2017)	E(B-V)=0.21, Dist=422, logt=6.83
Donor et al. (2020)	Fe/H=-0.18
He et al. (2022)	A0=0.25, logAge=7.05

Search coordinates in Bayestar19

Cluster region map