About TOI-7510 b
TOI-7510 b is a rare exoplanet. It lies about 812.1 light-years from Earth, has an equilibrium temperature near 878 K, spans roughly 7.31 Earth radii and weighs about 18.1 Earth masses.
So low-density it would float on water.
Rare exoplanet 39 EP
TOI-7510 b
RA 273.7282° · Dec -54.4341° · exoplanet
Score breakdown
· 6 badgesRare 46 pts → Epic
- Puffy low-density world +12
- Blasted by starlight +8
- Multi-planet system +6
- Confirmed exoplanet +5
- Gas giant +4
- Found by TESS +4
Total score 39
7 more points to reach Epic.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- Puffy low-density world · +12
- Multi-planet system · +6
- Blasted by starlight · +8
- Found by TESS · +4
Trivia
What makes it special
- Cotton-candy planet. So low-density it would float on water.
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 14.3 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 1.3 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 8121 years in a starship at a tenth of light speed.
- Distance. 812 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1214.
Saying hello
- Say hello. A radio message and its reply would take 1624 years round-trip.
Standing on it
- A year here. A full year lasts just 11.5 Earth days.
By the numbers
- Size. About 7.3× the width of Earth.
- Volume. About 391 Earths could fit inside it.
- Mass. About 18.1× the mass of Earth.
- Your weight. You'd weigh about 0.3× your Earth weight standing here.
- Density. Less dense than water — drop it in a big enough ocean and it would float.
- Temperature. Around 605°C — hotter than a self-cleaning oven.
How we found it
- Discovery. Found by Transiting Exoplanet Survey Satellite (TESS) using the transit method.
Cosmic context
- Crowded system. One of at least 3 planets orbiting its star.
Properties
- density gcc
- 0.255
- discovery facility
- Transiting Exoplanet Survey Satellite (TESS)
- discovery method
- Transit
- dist ly
- 812.148
- eccentricity
- 0.0572
- eq temp k
- 878
- insolation
- 1678.5119
- mass earth
- 18.1
- name
- TOI-7510 b
- orbital period days
- 11.5309
- radius earth
- 7.31
- sys num planets
- 3
How to see it
Like any astronomical target, TOI-7510 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 TOI-7510 b is a rare exoplanet
TOI-7510 b scores 39 points on Spacedle's rarity scale, which places it in the rare tier. Another 7 points would lift it into a rarer tier.
That score comes from 6 science badges — Confirmed exoplanet, Gas giant, Puffy low-density world, Multi-planet system, Blasted by starlight and Found by TESS — 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.