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Trash star 11 EP

11Sig1UMa

RA 137.0980° · Dec 66.8732° · star

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Score breakdown

· 2 badges
11 pts · Trash
Trash 15 pts → Common
  • Naked-eye visible +8
  • Star +3
Total score 11

4 more points to reach Common.

Badges

  • Star · +3
  • Naked-eye visible · +8

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. ≈ 813.5 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 5210 years in a starship at a tenth of light speed.
  • Distance. 521 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1505.

Saying hello

  • Say hello. A radio message and its reply would take 1042 years round-trip.

Properties

absmag
-0.867
bv
1.514
constellation
UMa
dist ly
521.0159
mag
5.15
name
11Sig1UMa
spect
K5III

About 11Sig1UMa

11Sig1UMa is a trash star. It lies about 521 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 5.15 and has spectral type K5III.

11Sig1UMa is a trash star worth 11 points across 2 science badges. Explore its facts, badges and place on the sky map, then add it to your dex on Spacedle.

How to see it

Look for 11Sig1UMa in the constellation UMa. At apparent magnitude 5.15, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 11Sig1UMa 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 11Sig1UMa is a trash star

11Sig1UMa scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.

That score comes from 2 science badges — Star and Naked-eye visible — 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.