Key parameters at a glance
- A radius of 12.50 Earth radii
- A mass of 3,178.00 Earth masses
- Surface gravity around 20.34 g
- An orbital period of 559.300 days
- Semi-major axis 1.3700 AU
- Distance from Earth 2,193.11 light-years
- Earth Similarity Index 0.384
- Travel time at Voyager 1 speed 38,675,414 years
1 sibling around TYC 1422-614-1
TYC 1422-614-1 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 |
|---|---|---|---|---|---|---|
| TYC 1422-614-1 b | Gas Giant | 13.30 | 794.50 | 198.400 | — | 2014 |
| TYC 1422-614-1 c this | Gas Giant | 12.50 | 3,178.00 | 559.300 | — | 2014 |
TYC 1422-614-1 c Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1235of 1771
top 69.7%
This planet
12.50R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TYC 1422-614-1 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.50 | 11.21 |
| Mass (M⊕) | 1.00 | 3,178.00 | 317.83 |
| Density (g/cm³) | 5.51 | 8.94 | 1.33 |
| Surface Gravity (g) | 1.00 | 20.34 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 3,178.000 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
TIC
TIC 95361265
Gaia DR2
Gaia DR2 625078240201245568
Gaia DR3
Gaia DR3 625078240201245568
System
TYC 1422-614-1
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 1.53 Earth years on a nearly circular orbit at a mean orbital distance of 1.3700 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.384
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Niedzielski et al. 2015Instrument
Multiple Instruments
Publication
2015-01
Observation locale
Ground
Discovery cohort
Planets confirmed in 2014 at Multiple Observatories (12 shown).
Host System: TYC 1422-614-1
Spectral Class
K-type orange
Effective Temperature
4,806 K — cooler than the Sun (5,778 K)
Estimated Age
5.89 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
6.850 R☉
Stellar Mass
1.150 M☉
Metallicity [Fe/H]
-0.20
Extended Stellar Properties
Surface gravity (log g)
2.850 dex
Systemic radial velocity
37.37 km/s
Rotational v·sin i
1.40 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.459 mas
Total Proper Motion
14.223 mas/yr
PM Right Ascension
-8.75 mas/yr
PM Declination
-11.21 mas/yr
Galactic Cartesian (pc)
x = -0.849 · y = 0.409 · z = 0.335
Equatorial (J2000)
RA 154.27778° · Dec 19.55841°
Galactic ℓ, b
216.626° · 53.923°
Ecliptic λ, β
149.081° · 8.306°
HTM-20 index
1208071381
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