Key parameters at a glance
- A radius of 6.25 Earth radii
- A mass of 32.70 Earth masses
- Surface gravity around 0.84 g
- An orbital period of 6.309 days
- Semi-major axis 0.0661 AU
- Equilibrium temperature 1,040 K (767 °C)
- Distance from Earth 678.05 light-years
- Earth Similarity Index 0.162
- Travel time at Voyager 1 speed 11,957,393 years
TOI-5005 b Planet Profile
Physical Specs
Classification
Planet Type
Neptune-like
Discovery
Size rank in cohort
Rank by radius
#258of 574
top 44.8%
This planet
6.25R⊕
Neptune-like median
6.39R⊕
Nearest-size peers
| Metric | Earth | TOI-5005 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 6.25 | 11.21 |
| Mass (M⊕) | 1.00 | 32.70 | 317.83 |
| Density (g/cm³) | 5.51 | 0.74 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.84 | 2.53 |
| Insolation (S⊕) | 1.00 | 226.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 32.700 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 282485660
Gaia DR2
Gaia DR2 5984530842395365248
Gaia DR3
Gaia DR3 5984530842395365248
System
TOI-5005
Percentile among Neptune-like cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.31 Earth days (1.7% of a terrestrial year) at a mean orbital distance of 0.0661 AU.
Transit Fingerprint
Depth
0.380 %
Duration
3.144 h
Impact parameter b
0.130
Rp / R★
0.061600
Transit midpoint (BJD)
2,460,090.0356
Photometric dip
Transit produces a flux drop of 3,800 ppm lasting ≈ 3.14 h.
Extended Orbital Architecture
Planet / star radius ratio
0.061600
Semi-major axis / stellar radius
15.290
Impact parameter (b)
0.130
RV semi-amplitude (K)
11.600 m/s
Transit mid-time (BJD)
2,460,090.0356
Angular separation (arcsec)
0.31800
Eq. Temperature
1,040K
(767 °C)
Insolation (S⊕)
226.00
Earth = 1.00
Earth Similarity (ESI)
0.162
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Discovery Paper
Primary reference
Castro Gonz & Aacute Lez et al. 2024Instrument
TESS CCD Array
Publication
2024-09
Observation locale
Space
Discovery cohort
Planets confirmed in 2024 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-5005
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,749 K — cooler than the Sun (5,778 K)
Estimated Age
2.20 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.930 R☉
Stellar Mass
0.970 M☉
Metallicity [Fe/H]
0.15
Extended Stellar Properties
Surface gravity (log g)
4.430 dex
Stellar density
1.613 g/cm³
Systemic radial velocity
17.86 km/s
Rotational v·sin i
1.35 km/s
Rotation period
21.01 days
Activity index (log R'HK)
-4.819
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
4.782 mas
Total Proper Motion
25.839 mas/yr
PM Right Ascension
-7.63 mas/yr
PM Declination
-24.69 mas/yr
Galactic Cartesian (pc)
x = -0.353 · y = -0.567 · z = -0.745
Equatorial (J2000)
RA 238.10819° · Dec -48.14510°
Galactic ℓ, b
331.312° · 4.499°
Ecliptic λ, β
246.633° · -27.260°
HTM-20 index
-343055604
Similar Worlds
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Neptune-like · G-type yellow (Sun-like)
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Kepler-511 b
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