HD 141943

HD 141943 is a young pre-main sequence G-type star with a circumstellar disk.^[4] Due to the similarity between HD 141943 and the Sun (Sun-like), it resembles what the Sun would have looked like during the epoch of terrestrial planet formation in Solar System history.^[5] Reconstruction of brightness maps of HD 141943 reveal a weak polar spot that changed little in latitude over the 4 year period in which it was observed. It also revealed significant amounts of low latitude features on HD 141943.^[6]

HD 141943

Image (top) and artistic illustration (bottom) of HD 141943, the two images on the left
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Lupus[1]
Right ascension	15h 53m 27.29s[2]
Declination	−42° 16′ 00.7″[2]
Apparent magnitude (V)	7.98[3]
Characteristics
Spectral type	G2[3]
Astrometry
Proper motion (μ)	RA: -43.236 mas/yr[2] Dec.: -65.588 mas/yr[2]
Parallax (π)	16.6271±0.0221 mas[2]
Distance	196.2 ± 0.3 ly (60.14 ± 0.08 pc)
Other designations
NZ Lup, NSV 20423, CD−41 10403, CPD−41 7375, HD 141943, SAO 226339, PPM 321158, TYC 7846-1538-1[3]
Database references
SIMBAD	data

It is a potential excellent candidate for telescopes such as the Hubble Space Telescope (HST), the Gemini Planet Imager (GPI) and the Very-Large Telescope (VLT) for follow-up observations of possible planet formation around HD 141943.^[7]

Magnetic field

A light curve for NZ Lupi, plotted from TESS data.^[8] The 2.2194 day period is marked in red.^[9]

The coronal magnetic field of HD 141943 is dominated by a dipole which shows evidence of a possible tilt. The star also has a high differential rotation, about 8 times the value of the magnetic features of the Sun and 5 times the brightness features. This makes it similar to K-type stars.^[10]