Key parameters at a glance
- A radius of 1.55 Earth radii
- A mass of 3.02 Earth masses
- Surface gravity around 1.26 g
- An orbital period of 17.157 days
- Semi-major axis 0.1309 AU
- Equilibrium temperature 844 K (571 °C)
- Distance from Earth 4,252.16 light-years
- Earth Similarity Index 0.354
- Travel time at Voyager 1 speed 74,986,855 years
1 sibling around Kepler-784
Kepler-784 c 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 |
|---|---|---|---|---|---|---|
| Kepler-784 c this | Super-Earth | 1.55 | 3.02 | 17.157 | 844 | 2023 |
| Kepler-784 b | Super-Earth | 1.58 | 3.12 | 31.592 | 688 | 2016 |
Kepler-784 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#652of 1176
top 55.4%
This planet
1.55R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-784 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.55 | 11.21 |
| Mass (M⊕) | 1.00 | 3.02 | 317.83 |
| Density (g/cm³) | 5.51 | 4.46 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.26 | 2.53 |
| Insolation (S⊕) | 1.00 | 119.87 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 272078218
Gaia DR2
Gaia DR2 2080605823183999616
Gaia DR3
Gaia DR3 2080605823183999616
System
Kepler-784
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 17.16 Earth days (4.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1309 AU.
Transit Fingerprint
Depth
0.011 %
Duration
11.284 h
Impact parameter b
0.238
Rp / R★
0.009558
Transit midpoint (BJD)
2,454,966.6895
Photometric dip
Transit produces a flux drop of 110 ppm lasting ≈ 11.28 h.
Extended Orbital Architecture
Planet / star radius ratio
0.009558
Semi-major axis / stellar radius
11.410
Impact parameter (b)
0.238
Transit mid-time (BJD)
2,454,966.6895
Angular separation (arcsec)
0.10000
Eq. Temperature
844K
(571 °C)
Insolation (S⊕)
119.87
Earth = 1.00
Earth Similarity (ESI)
0.354
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
Discovery Paper
Primary reference
Valizadegan et al. 2023Instrument
Kepler CCD Array
Publication
2023-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Kepler (12 shown).
Host System: Kepler-784
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,676 K — cooler than the Sun (5,778 K)
Estimated Age
2.88 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.487 R☉
Stellar Mass
1.016 M☉
Metallicity [Fe/H]
0.10
Extended Stellar Properties
Surface gravity (log g)
4.100 dex
Stellar density
0.096 g/cm³
Systemic radial velocity
-0.56 km/s
Rotational v·sin i
4.80 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.738 mas
Total Proper Motion
2.817 mas/yr
PM Right Ascension
2.61 mas/yr
PM Declination
-1.06 mas/yr
Galactic Cartesian (pc)
x = 0.296 · y = -0.608 · z = 0.737
Equatorial (J2000)
RA 295.92067° · Dec 47.44862°
Galactic ℓ, b
80.685° · 11.531°
Ecliptic λ, β
318.121° · 66.609°
HTM-20 index
-2078971621
Similar Worlds
Kepler-226 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.55 R⊕ · 3,196.8 ly
Kepler-1466 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.55 R⊕ · 2,061.1 ly
Kepler-255 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.55 R⊕ · 3,432.9 ly
Kepler-1295 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.55 R⊕ · 3,830.6 ly
Kepler-195 c
Super-Earth · G-type yellow (Sun-like)
Radius 1.55 R⊕ · 2,126.7 ly
Kepler-1282 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.55 R⊕ · 3,598.4 ly