About TOI-1294 c
TOI-1294 c is a rare exoplanet. It lies about 1,085 light-years from Earth, has an equilibrium temperature near 440 K, spans roughly 14.3 Earth radii and weighs about 147 Earth masses.
So low-density it would float on water.
Rare exoplanet 37 EP
TOI-1294 c
RA 223.0926° · Dec 70.4766° · exoplanet
Score breakdown
· 5 badgesRare 46 pts → Epic
- Puffy low-density world +12
- Distant (>1000 ly) +10
- Multi-planet system +6
- Confirmed exoplanet +5
- Gas giant +4
Total score 37
9 more points to reach Epic.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- Puffy low-density world · +12
- Multi-planet system · +6
- Distant (>1000 ly) · +10
Trivia
What makes it special
- Cotton-candy planet. So low-density it would float on water.
Could we get there?
- Verdict. Impossible with our current technology — and the next millennium of it.
Getting there
- Aboard Voyager 1. ≈ 19.1 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 1.7 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 10.8 thousand years in a starship at a tenth of light speed.
- Distance. 1085 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 941.
Saying hello
- Say hello. A radio message and its reply would take 2170 years round-trip.
Standing on it
- A year here. A full year lasts just 160 Earth days.
By the numbers
- Size. About 14.3× the width of Earth.
- Volume. About 2924 Earths could fit inside it.
- Mass. Roughly 147× Earth's mass — about 0.5 Jupiters.
- Your weight. You'd weigh about 0.7× your Earth weight standing here.
- Density. Less dense than water — drop it in a big enough ocean and it would float.
- Temperature. A scorching 167°C on average.
How we found it
- Discovery. Found by W. M. Keck Observatory using the radial velocity method.
Cosmic context
- Crowded system. One of at least 2 planets orbiting its star.
Properties
- density gcc
- 0.276
- discovery facility
- W. M. Keck Observatory
- discovery method
- Radial Velocity
- dist ly
- 1084.9514
- eccentricity
- 0
- eq temp k
- 440.45
- insolation
- 6.2779
- mass earth
- 147
- name
- TOI-1294 c
- orbital period days
- 159.9
- radius earth
- 14.3
- sys num planets
- 2
How to see it
Like any astronomical target, TOI-1294 c 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-1294 c is a rare exoplanet
TOI-1294 c scores 37 points on Spacedle's rarity scale, which places it in the rare tier. Another 9 points would lift it into a rarer tier.
That score comes from 5 science badges — Confirmed exoplanet, Gas giant, Puffy low-density world, Multi-planet system 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.