NGC 1931

UCC G173.9+00.2
C1	C2	C3	N_50	r_50
0.83	0.52	AB	249	9.7

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Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Dambis (1999)	82.861	34.249	–	–	–	–
Glushkova et al. (2010)	82.858	34.214	–	–	–	–
Loktin & Popova (2017)	82.86	34.245	–	-0.011	-1.655	–
Jaehnig et al. (2021)	82.804	34.238	0.455	0.302	-1.935	–
Hunt & Reffert (2023)	82.852	34.224	0.424	0.237	-2.036	-20.834
Cavallo et al. (2024)	82.843	34.224	0.425	–	–	–
UCC	82.839	34.229	0.381	0.236	-2.028	11.595

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Estimated members

1 2

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Fundamental parameters

Reference	Values
Dambis (1999)	E_B-V_=0.543, DM0=11.7, log_age_=7.1
Glushkova et al. (2010)	E(B-V)=1.97, Dm=10.06, Age=7.0
Loktin & Popova (2017)	E(B-V)=0.738, Dmod=12.435, logt=7.002
Hunt & Reffert (2023)	AV50=1.921, diffAV50=2.449, MOD50=11.629, logAge50=7.069
Cavallo et al. (2024)	AV50=1.11, dMod50=11.48, logAge50=7.92, [Fe/H]50=0.26

Probable duplicates

Cluster	P (%)	RA	DEC	Plx	pmRA	pmDE	Rv
CWNU 3181	86	82.846	34.226	0.396	0.225	-2.026	-15.063

Last modified: 2025-01-31