What it’s like to stand here
MWC 758 c
sun
0.02× as wide
sky
bright white

Illustration computed from this world’s measured and derived values, not a photograph.

MWC 758 c

MWC 758 c is a confirmed sub-Neptune exoplanet 520 ly from Earth in the constellation Taurus, discovered in 2023 by Large Binocular Telescope Observatory.

Imaging: photographed directly, as a faint point of light beside its star.

MWC 758
host star
radius
mass · minimum (m·sin i)
orbital period
227°C (440°F)
avg temp
Human scale

Its yellow-white star looks 0.02× as wide as ours, bathing the surface in bright white light. At an estimated 227°C (440°F) it is blistering.

gravity, needs mass + radius
one year, in Earth time
0.02× as wide
how big its sun looks vs ours
bright white
midday sky tint
jump, needs gravity
normal
day/night cycle (not tidally locked)

What these mean: surface gravity · tidal locking · equilibrium temperature

Hear how a voice sounds herea computed acoustic demo

Your voice would sound high and thin, almost cartoonish.

Assuming Earth-like air at this world's temperature of about 227°C (440°F), sound would travel roughly 32% faster than on Earth, so your voice would sound high and thin, almost cartoonish. The real atmosphere is unknown, so this is a best guess.

sound speed ≈ 448 m/s · 1.32× Earth · assumes Earth-like air

A real voice sample, pitch-shifted (tempo held constant) to suggest the acoustics: a playful approximation, not a precise simulation. Voice: Lingua Libre / Vealhurl, CC BY-SA 4.0.

The journey
Cosmic travel advisory
★★★☆☆
For seasoned travelers
  • !Blistering at about 227°C (440°F), far too hot for liquid water on the surface.

A playful read of MWC 758 c’s measured and computed values, not a real advisory.

How long to get there · 520 ly away
Jet airliner
624 million years
dies en route1000-yr cryo: fails
Parker Solar Probethe fastest craft ever built
811,526 years
dies en route1000-yr cryo: fails
Light speed
520 years
dies en route1000-yr cryo: survives
Warp 10
190 days
arrives thriving
Folding spacetimeinstant, plus 1 hr of paperwork
1 hour
arrives thriving
Size vs Earth
Explore from here · roam the neighborhood

Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.

Can you see it tonight? · observe
BINOCULARS NEEDED
Host-star brightnessmag 8.3
ConstellationTaurus
To see the host star50 mm binoculars
Gear bridge

Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.

Common questions

How far is MWC 758 c from Earth?

MWC 758 c lies about 520 light-years from Earth.

How long would it take to get to MWC 758 c?

At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 811,526 years.

How hot is MWC 758 c?

MWC 758 c's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 227°C (440°F).

Illustration generated from MWC 758 c's confirmed parameters, not a photograph.