HD 141943
From Wikipedia, the free encyclopedia
 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 | |
| Evolutionary stage | PMS[4] |
| 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) |
| Details | |
| Mass | 1.09[5] M☉ |
| Radius | 1.35[6] R☉ |
| Luminosity | 2.07[6] L☉ |
| Surface gravity (log g) | 4.22[6] cgs |
| Temperature | 5,963[6] K |
| Rotation | 2.2 days[5] |
| Rotational velocity (v sin i) | 24.4[5] km/s |
| Age | 30[5] Myr |
| 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 |
HD 141943 is a young pre-main sequence G-type star with a circumstellar disk.[7] 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.[8] 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.[9]
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.[4]
