About iot Dra b
iot Dra b is a rare exoplanet. It lies about 102.2 light-years from Earth, has an equilibrium temperature near 619 K, spans roughly 12.4 Earth radii and weighs about 3,756.73 Earth masses.
Packed denser than solid iron.
Rare exoplanet 42 EP
iot Dra b
RA 231.2323° · Dec 58.9661° · exoplanet
Score breakdown
· 5 badgesRare 46 pts → Epic
- Denser than iron +18
- Eccentric orbit +9
- Multi-planet system +6
- Confirmed exoplanet +5
- Gas giant +4
Total score 42
4 more points to reach Epic.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- Eccentric orbit · +9
- Denser than iron · +18
- Multi-planet system · +6
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. ≈ 1.8 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 159.5 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 1022 years in a starship at a tenth of light speed.
- Distance. 102 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1924.
Saying hello
- Say hello. A radio message and its reply would take 204 years round-trip.
Standing on it
- A year here. A full year lasts just 511 Earth days.
By the numbers
- Size. About 12.4× the width of Earth.
- Volume. About 1907 Earths could fit inside it.
- Mass. Roughly 3757× Earth's mass — about 11.8 Jupiters.
- Your weight. You'd weigh about 24.4× your Earth weight standing here.
- Density. Denser than solid iron.
- Temperature. A scorching 346°C on average.
How we found it
- Discovery. Found by Lick Observatory using the radial velocity method.
Cosmic context
- Crowded system. One of at least 2 planets orbiting its star.
Properties
- density gcc
- 10.8
- discovery facility
- Lick Observatory
- discovery method
- Radial Velocity
- dist ly
- 102.1792
- eccentricity
- 0.701
- eq temp k
- 618.67
- insolation
- 24.9999
- mass earth
- 3756.7318
- name
- iot Dra b
- orbital period days
- 510.8544
- radius earth
- 12.4
- sys num planets
- 2
How to see it
Like any astronomical target, iot Dra 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 iot Dra b is a rare exoplanet
iot Dra b scores 42 points on Spacedle's rarity scale, which places it in the rare tier. Another 4 points would lift it into a rarer tier.
That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Eccentric orbit, 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.