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Trash variable star 5 EP

57Mu Eri

RA 71.3756° · Dec -3.2547° · star

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Score breakdown

· 1 badge
5 pts · Trash
Trash 15 pts → Common
  • Variable star +5
Total score 5

10 more points to reach Common.

Badges

  • Variable star · +5

Trivia

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 9.2 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 814.8 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 5218 years in a starship at a tenth of light speed.
  • Distance. 522 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1504.

Saying hello

  • Say hello. A radio message and its reply would take 1044 years round-trip.

Properties

absmag
-2.011
bv
-0.148
constellation
Eri
dist ly
521.8496
mag
4.01
name
57Mu Eri
spect
B5IV

About 57Mu Eri

57Mu Eri is a trash variable star. It lies about 521.8 light-years from Earth, sits in the constellation Eri, shines at apparent magnitude 4.01 and has spectral type B5IV.

57Mu Eri is a trash variable star worth 5 points across 1 science badge. Explore its facts, badges and place on the sky map, then add it to your dex on Spacedle.

How to see it

Look for 57Mu Eri in the constellation Eri. At apparent magnitude 4.01, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 57Mu Eri 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 57Mu Eri is a trash variable star

57Mu Eri scores 5 points on Spacedle's rarity scale, which places it in the trash tier. Another 10 points would lift it into a rarer tier.

That score comes from 1 science badge — Variable star — 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.

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Sky imagery and survey data courtesy of Aladin Lite & CDS, Strasbourg. Object data from the NASA Exoplanet Archive, JPL Small-Body Database, and the ATNF Pulsar Catalogue.