About LHS 3844 b
LHS 3844 b is an uncommon exoplanet. It lies about 48.5 light-years from Earth, has an equilibrium temperature near 816 K, spans roughly 1.29 Earth radii and weighs about 2.37 Earth masses.
About 1.3× the width of Earth.
Uncommon exoplanet 31 EP
LHS 3844 b
RA 340.4962° · Dec -69.1721° · exoplanet
Score breakdown
· 4 badgesUncommon 33 pts → Rare
- Ultra-short period +14
- Super-Earth +8
- Confirmed exoplanet +5
- Found by TESS +4
Total score 31
2 more points to reach Rare.
Badges
- Confirmed exoplanet · +5
- Super-Earth · +8
- Ultra-short period · +14
- Found by TESS · +4
Trivia
Could we get there?
- Verdict. Hopelessly far for any craft humanity can build today.
Getting there
- Aboard Voyager 1. ≈ 853.1 thousand years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 75.8 thousand years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 485 years in a starship at a tenth of light speed.
- Distance. 48.5 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 1977.
Saying hello
- Say hello. A radio message and its reply would take 97.1 years round-trip.
Standing on it
- A year here. A full year lasts just 0.5 Earth days.
By the numbers
- Size. About 1.3× the width of Earth.
- Mass. About 2.4× the mass of Earth.
- Your weight. You'd weigh about 1.4× your Earth weight standing here.
- Temperature. Around 543°C — hotter than a self-cleaning oven.
How we found it
- Discovery. Found by Transiting Exoplanet Survey Satellite (TESS) using the transit method.
Properties
- density gcc
- 6.15
- discovery facility
- Transiting Exoplanet Survey Satellite (TESS)
- discovery method
- Transit
- dist ly
- 48.547
- eccentricity
- 0
- eq temp k
- 816
- insolation
- 73.67
- mass earth
- 2.37
- name
- LHS 3844 b
- orbital period days
- 0.4629
- radius earth
- 1.286
- sys num planets
- 1
How to see it
Like any astronomical target, LHS 3844 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 LHS 3844 b is an uncommon exoplanet
LHS 3844 b scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 2 points would lift it into a rarer tier.
That score comes from 4 science badges — Confirmed exoplanet, Super-Earth, Ultra-short period 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.