Key parameters at a glance
- A radius of 13.40 Earth radii
- A mass of 632.46 Earth masses
- Surface gravity around 3.52 g
- An orbital period of 452.800 days
- Semi-major axis 1.3330 AU
- Distance from Earth 235.06 light-years
- Earth Similarity Index 0.365
- Travel time at Voyager 1 speed 4,145,242 years
1 sibling around 24 Sex
24 Sex b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| 24 Sex b this | Gas Giant | 13.40 | 632.46 | 452.800 | — | 2010 |
| 24 Sex c | Gas Giant | 13.90 | 273.32 | 883.000 | — | 2010 |
24 Sex b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#730of 1771
top 41.2%
This planet
13.40R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | 24 Sex b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.40 | 11.21 |
| Mass (M⊕) | 1.00 | 632.46 | 317.83 |
| Density (g/cm³) | 5.51 | 1.44 | 1.33 |
| Surface Gravity (g) | 1.00 | 3.52 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 632.460 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 90043
HIP
HIP 50887
TIC
TIC 1713457
Gaia DR2
Gaia DR2 3830897080395058048
Gaia DR3
Gaia DR3 3830897080395058048
System
24 Sex
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 1.24 Earth years on a nearly circular orbit at a mean orbital distance of 1.3330 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.365
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Johnson et al. 2010Instrument
Hamilton Echelle Spectrograph
Publication
2011-01
Observation locale
Ground
Discovery cohort
Planets confirmed in 2010 at Lick Observatory (3 shown).
Host System: 24 Sex
Spectral Class
K-type orange
Effective Temperature
5,098 K — cooler than the Sun (5,778 K)
Estimated Age
2.70 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
4.900 R☉
Stellar Mass
1.540 M☉
Metallicity [Fe/H]
-0.03
Extended Stellar Properties
Surface gravity (log g)
3.500 dex
Systemic radial velocity
7.29 km/s
Rotational v·sin i
2.77 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
13.849 mas
Total Proper Motion
74.628 mas/yr
PM Right Ascension
65.22 mas/yr
PM Declination
-36.27 mas/yr
Galactic Cartesian (pc)
x = -0.912 · y = 0.409 · z = -0.016
Equatorial (J2000)
RA 155.86849° · Dec -0.90240°
Galactic ℓ, b
245.086° · 44.716°
Ecliptic λ, β
157.990° · -10.198°
HTM-20 index
366617760
Observation Record
Photometric series
1
RV measurements
2
Stellar spectra
1
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