Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Centaurus |
Right ascension | 12h 42m 28.4950s [1] |
Declination | −30° 38′ 23.529″ [1] |
Apparent magnitude (V) | 11.6 [2] |
Characteristics | |
Evolutionary stage | main-sequence star |
Spectral type | G8V [3] |
Astrometry | |
Radial velocity (Rv) | 4.153 [1] km/s |
Proper motion (μ) |
RA: 14.878
[1]
mas/
yr Dec.: 11.988 [1] mas/ yr |
Parallax (π) | 6.1193 ± 0.0203 mas [1] |
Distance | 533 ± 2
ly (163.4 ± 0.5 pc) |
Details | |
Mass | 0.930±0.030 [4] M☉ |
Radius | 0.900±0.050 [4] R☉ |
Luminosity | 0.65 [1] L☉ |
Surface gravity (log g) | 4.48 [1] cgs |
Temperature | 5,450±150 [4] K |
Metallicity [Fe/H] | −0.080±0.090 [4] dex |
Rotation | 18.4 d [3] |
Rotational velocity (v sin i) | 1.50±0.05 [5] km/s |
Age | 2.289±0.077 [6] Gyr |
Other designations | |
Database references | |
SIMBAD | 9873 data |
WASP-41 is a G-type main-sequence star. Its surface temperature is 5450±150 K. WASP-41 is similar to the Sun in its concentration of heavy elements, with a metallicity Fe/H index of −0.080±0.090, [4] but is much younger at an age of 2.289±0.077 billion years. [6] The star does exhibit strong starspot activity, with spots covering 3% of the stellar surface. [5]
Multiplicity surveys did not detect any stellar companions as of 2017. [8]
In 2012, one planet, named
WASP-41b, was discovered on a tight, circular orbit.
[3] The transmission spectrum taken in 2017 was gray and featureless. No atmospheric constituents could be distinguished.
[9] The planetary orbit of WASP-41b is slightly misaligned with the equatorial plane of the star, at a misalignment angle of 9.15+2.85
−2.62°.
[5] Planetary equilibrium temperature is 1242±12
K.
[2]
Another planet, WASP-41c, was discovered in 2015. [10] The planets are too far apart to significantly affect each other's orbits. [11] The planetary equilibrium temperature of WASP-41c is 247±5 K. [10]
Companion (in order from star) |
Mass |
Semimajor axis ( AU) |
Orbital period ( days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 0.941+0.065 −0.064 MJ |
0.04022±0.00044 | 3.0524010±0.000004 | <0.12 | 87.700±0.080 ° | 1.200±0.060 RJ |
c [12] | >3.2±0.20 MJ | 1.36±0.04 | 421±2 | 0.294±0.024 | >70 ° | — |
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Centaurus |
Right ascension | 12h 42m 28.4950s [1] |
Declination | −30° 38′ 23.529″ [1] |
Apparent magnitude (V) | 11.6 [2] |
Characteristics | |
Evolutionary stage | main-sequence star |
Spectral type | G8V [3] |
Astrometry | |
Radial velocity (Rv) | 4.153 [1] km/s |
Proper motion (μ) |
RA: 14.878
[1]
mas/
yr Dec.: 11.988 [1] mas/ yr |
Parallax (π) | 6.1193 ± 0.0203 mas [1] |
Distance | 533 ± 2
ly (163.4 ± 0.5 pc) |
Details | |
Mass | 0.930±0.030 [4] M☉ |
Radius | 0.900±0.050 [4] R☉ |
Luminosity | 0.65 [1] L☉ |
Surface gravity (log g) | 4.48 [1] cgs |
Temperature | 5,450±150 [4] K |
Metallicity [Fe/H] | −0.080±0.090 [4] dex |
Rotation | 18.4 d [3] |
Rotational velocity (v sin i) | 1.50±0.05 [5] km/s |
Age | 2.289±0.077 [6] Gyr |
Other designations | |
Database references | |
SIMBAD | 9873 data |
WASP-41 is a G-type main-sequence star. Its surface temperature is 5450±150 K. WASP-41 is similar to the Sun in its concentration of heavy elements, with a metallicity Fe/H index of −0.080±0.090, [4] but is much younger at an age of 2.289±0.077 billion years. [6] The star does exhibit strong starspot activity, with spots covering 3% of the stellar surface. [5]
Multiplicity surveys did not detect any stellar companions as of 2017. [8]
In 2012, one planet, named
WASP-41b, was discovered on a tight, circular orbit.
[3] The transmission spectrum taken in 2017 was gray and featureless. No atmospheric constituents could be distinguished.
[9] The planetary orbit of WASP-41b is slightly misaligned with the equatorial plane of the star, at a misalignment angle of 9.15+2.85
−2.62°.
[5] Planetary equilibrium temperature is 1242±12
K.
[2]
Another planet, WASP-41c, was discovered in 2015. [10] The planets are too far apart to significantly affect each other's orbits. [11] The planetary equilibrium temperature of WASP-41c is 247±5 K. [10]
Companion (in order from star) |
Mass |
Semimajor axis ( AU) |
Orbital period ( days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 0.941+0.065 −0.064 MJ |
0.04022±0.00044 | 3.0524010±0.000004 | <0.12 | 87.700±0.080 ° | 1.200±0.060 RJ |
c [12] | >3.2±0.20 MJ | 1.36±0.04 | 421±2 | 0.294±0.024 | >70 ° | — |