About HD 238914 b
HD 238914 b is a rare exoplanet. It lies about 1,694.2 light-years from Earth, has an equilibrium temperature near 344 K, spans roughly 12.8 Earth radii and weighs about 1,906.98 Earth masses.
About 12.8× the width of Earth.
Rare exoplanet 38 EP
HD 238914 b
RA 279.5842° · Dec 59.2539° · exoplanet
Score breakdown
· 5 badgesRare 46 pts → Epic
- Long-period world +10
- Distant (>1000 ly) +10
- Eccentric orbit +9
- Confirmed exoplanet +5
- Gas giant +4
Total score 38
8 more points to reach Epic.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- Long-period world · +10
- Eccentric orbit · +9
- Distant (>1000 ly) · +10
Trivia
Could we get there?
- Verdict. Impossible with our current technology — and the next millennium of it.
Getting there
- Aboard Voyager 1. ≈ 29.8 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 2.6 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 16.9 thousand years in a starship at a tenth of light speed.
- Distance. 1694 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 332.
Saying hello
- Say hello. A radio message and its reply would take 3388 years round-trip.
Standing on it
- A year here. A full year lasts about 11.2 Earth years.
By the numbers
- Size. About 12.8× the width of Earth.
- Volume. About 2097 Earths could fit inside it.
- Mass. Roughly 1907× Earth's mass — about 6 Jupiters.
- Your weight. You'd weigh about 11.6× your Earth weight standing here.
- Temperature. A scorching 71°C on average.
How we found it
- Discovery. Found by Multiple Observatories using the radial velocity method.
Properties
- density gcc
- 5
- discovery facility
- Multiple Observatories
- discovery method
- Radial Velocity
- dist ly
- 1694.2239
- eccentricity
- 0.56
- eq temp k
- 343.67
- insolation
- 2.179
- mass earth
- 1906.98
- name
- HD 238914 b
- orbital period days
- 4100
- radius earth
- 12.8
- sys num planets
- 1
How to see it
Like any astronomical target, HD 238914 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 HD 238914 b is a rare exoplanet
HD 238914 b scores 38 points on Spacedle's rarity scale, which places it in the rare tier. Another 8 points would lift it into a rarer tier.
That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Long-period world, Eccentric orbit and Distant (>1000 ly) — 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.