Key parameters at a glance
- A radius of 1.78 Earth radii
- A mass of 3.82 Earth masses
- Surface gravity around 1.21 g
- An orbital period of 168.811 days
- Semi-major axis 0.5447 AU
- Equilibrium temperature 269 K (-4 °C)
- Distance from Earth 1,092.92 light-years
- Earth Similarity Index 0.827
- Travel time at Voyager 1 speed 19,273,575 years
Context from the literature
Kepler-1544b is a potentially habitable exoplanet announced in 2016 and located 1138 light years away, in the constellation of Cygnus.
Excerpted from Wikipedia · full article
Kepler-1544 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#282of 1176
top 23.9%
This planet
1.78R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1544 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.78 | 11.21 |
| Mass (M⊕) | 1.00 | 3.82 | 317.83 |
| Density (g/cm³) | 5.51 | 3.72 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.21 | 2.53 |
| Insolation (S⊕) | 1.00 | 0.83 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 28090925
Gaia DR2
Gaia DR2 2086784185178032384
Gaia DR3
Gaia DR3 2086784185178032384
System
Kepler-1544
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 168.81 Earth days (46.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.5446 AU.
Transit Fingerprint
Depth
0.061 %
Duration
6.500 h
Impact parameter b
0.584
Rp / R★
0.021983
Transit midpoint (BJD)
2,455,044.4409
Photometric dip
Transit produces a flux drop of 612 ppm lasting ≈ 6.50 h.
Extended Orbital Architecture
Planet / star radius ratio
0.021983
Semi-major axis / stellar radius
163.200
Impact parameter (b)
0.584
Transit mid-time (BJD)
2,455,044.4409
Angular separation (arcsec)
1.63000
Eq. Temperature
269K
(-4 °C)
Insolation (S⊕)
0.83
Earth = 1.00
Earth Similarity (ESI)
0.827
0 = alien, 1 = Earth-identical
Within the conservative habitable zone — surface water would be frozen.
Discovery Paper
Primary reference
Morton et al. 2016Instrument
Kepler CCD Array
Publication
2016-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at Kepler (12 shown).
Host System: Kepler-1544
Spectral Class
K-type orange
Effective Temperature
4,886 K — cooler than the Sun (5,778 K)
Estimated Age
2.34 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.740 R☉
Stellar Mass
0.810 M☉
Metallicity [Fe/H]
0.02
Extended Stellar Properties
Surface gravity (log g)
4.610 dex
Stellar density
2.110 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.955 mas
Total Proper Motion
31.152 mas/yr
PM Right Ascension
31.03 mas/yr
PM Declination
2.73 mas/yr
Galactic Cartesian (pc)
x = 0.299 · y = -0.581 · z = 0.757
Equatorial (J2000)
RA 297.28522° · Dec 49.21245°
Galactic ℓ, b
82.709° · 11.561°
Ecliptic λ, β
322.291° · 67.759°
HTM-20 index
1934480927
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