About BD+20 594 b
BD+20 594 b is an uncommon exoplanet. It lies about 585.3 light-years from Earth, has an equilibrium temperature near 546 K, spans roughly 2.58 Earth radii and weighs about 22.25 Earth masses.
Packed denser than solid iron.
Uncommon exoplanet 28 EP
BD+20 594 b
RA 53.6511° · Dec 20.5990° · exoplanet
Score breakdown
· 3 badgesUncommon 33 pts → Rare
- Denser than iron +18
- Confirmed exoplanet +5
- Sub-Neptune +5
Total score 28
5 more points to reach Rare.
Badges
- Confirmed exoplanet · +5
- Sub-Neptune · +5
- Denser than iron · +18
Trivia
What makes it special
- 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. ≈ 10.3 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 913.9 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 5853 years in a starship at a tenth of light speed.
- Distance. 585 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1441.
Saying hello
- Say hello. A radio message and its reply would take 1171 years round-trip.
Standing on it
- A year here. A full year lasts just 41.7 Earth days.
By the numbers
- Size. About 2.6× the width of Earth.
- Volume. About 17.1 Earths could fit inside it.
- Mass. About 22.2× the mass of Earth.
- Your weight. You'd weigh about 3.3× your Earth weight standing here.
- Density. Denser than solid iron.
- Temperature. A scorching 273°C on average.
How we found it
- Discovery. Found by K2 using the transit method.
Properties
- density gcc
- 7.89
- discovery facility
- K2
- discovery method
- Transit
- dist ly
- 585.3228
- eccentricity
- 0
- eq temp k
- 546
- insolation
- 15.1513
- mass earth
- 22.2481
- name
- BD+20 594 b
- orbital period days
- 41.6855
- radius earth
- 2.5781
- sys num planets
- 1
How to see it
Like any astronomical target, BD+20 594 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 BD+20 594 b is an uncommon exoplanet
BD+20 594 b scores 28 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 5 points would lift it into a rarer tier.
That score comes from 3 science badges — Confirmed exoplanet, Sub-Neptune and Denser than iron — 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.