About 14 Her b
14 Her b is a rare exoplanet. It lies about 58.5 light-years from Earth, has an equilibrium temperature near 147 K, spans roughly 12.5 Earth radii and weighs about 2,828.67 Earth masses.
A deep-frozen world far from its star's warmth.
Rare exoplanet 41 EP
14 Her b
RA 242.6021° · Dec 43.8164° · exoplanet
Score breakdown
· 5 badgesRare 46 pts → Epic
- Denser than iron +18
- Frozen world +8
- Multi-planet system +6
- Confirmed exoplanet +5
- Gas giant +4
Total score 41
5 more points to reach Epic.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- Frozen world · +8
- Denser than iron · +18
- Multi-planet system · +6
Trivia
What makes it special
- Frozen world. A deep-frozen world far from its star's warmth.
- Heavyweight. Packed denser than solid iron.
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 1 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 91.3 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 585 years in a starship at a tenth of light speed.
- Distance. 58.5 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1968.
Saying hello
- Say hello. A radio message and its reply would take 117 years round-trip.
Standing on it
- A year here. A full year lasts about 4.8 Earth years.
By the numbers
- Size. About 12.5× the width of Earth.
- Volume. About 1953 Earths could fit inside it.
- Mass. Roughly 2829× Earth's mass — about 8.9 Jupiters.
- Your weight. You'd weigh about 18.1× your Earth weight standing here.
- Density. Denser than solid iron.
- Temperature. A frigid -126°C — colder than dry ice.
How we found it
- Discovery. Found by W. M. Keck Observatory using the radial velocity method.
Cosmic context
- Crowded system. One of at least 2 planets orbiting its star.
Properties
- density gcc
- 7.96
- discovery facility
- W. M. Keck Observatory
- discovery method
- Radial Velocity
- dist ly
- 58.4873
- eccentricity
- 0.3683
- eq temp k
- 147.32
- insolation
- 0.0873
- mass earth
- 2828.6728
- name
- 14 Her b
- orbital period days
- 1766.41
- radius earth
- 12.5
- sys num planets
- 2
How to see it
Like any astronomical target, 14 Her b is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.
Why 14 Her b is a rare exoplanet
14 Her b scores 41 points on Spacedle's rarity scale, which places it in the rare tier. Another 5 points would lift it into a rarer tier.
That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Frozen world, Denser than iron and Multi-planet system — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.