Common exoplanet 15 EP
HD 74698 b
RA 130.0745° · Dec -71.8769° · exoplanet
Score breakdown
· 3 badgesCommon 24 pts → Uncommon
- Multi-planet system +6
- Confirmed exoplanet +5
- Neptune-like +4
Total score 15
9 more points to reach Uncommon.
Badges
- Confirmed exoplanet · +5
- Neptune-like · +4
- Multi-planet system · +6
Trivia
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 3 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 265.1 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 1698 years in a starship at a tenth of light speed.
- Distance. 170 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1856.
Saying hello
- Say hello. A radio message and its reply would take 340 years round-trip.
Standing on it
- A year here. A full year lasts just 15 Earth days.
By the numbers
- Size. About 5.1× the width of Earth.
- Volume. About 134 Earths could fit inside it.
- Mass. About 23× the mass of Earth.
- Your weight. You'd weigh about 0.9× your Earth weight standing here.
- Density. Less dense than water — drop it in a big enough ocean and it would float.
- Temperature. Around 652°C — hotter than a self-cleaning oven.
How we found it
- Discovery. Found by La Silla Observatory using the radial velocity method.
Cosmic context
- Crowded system. One of at least 2 planets orbiting its star.
Properties
- density gcc
- 0.942
- discovery facility
- La Silla Observatory
- discovery method
- Radial Velocity
- dist ly
- 169.8125
- eccentricity
- 0.1
- eq temp k
- 925.57
- insolation
- 123
- mass earth
- 23
- name
- HD 74698 b
- orbital period days
- 15.017
- radius earth
- 5.12
- sys num planets
- 2