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Anomaly star 81 EP

Toliman

RA 219.9052° · Dec -60.8383° · star

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Score breakdown

· 8 badges
81 pts · Anomaly
Anomaly 120 pts → Mythic
  • Alpha Centauri, the nearest star system +26
  • Stellar next door (<10 ly) +25
  • Naked-eye visible +8
  • Has a proper name +8
  • Binary star +6
  • Star +3
  • Orange K-type star +3
  • Main-sequence star +2
Total score 81

39 more points to reach Mythic.

Badges

  • Star · +3
  • Stellar next door (<10 ly) · +25
  • Naked-eye visible · +8
  • Binary star · +6
  • Has a proper name · +8
  • Orange K-type star · +3
  • Main-sequence star · +2
  • Alpha Centauri, the nearest star system · +26

Trivia

What makes it special

  • Next-door neighbour. One of the closest objects of its kind to the Sun — a first port of call for any interstellar mission we ever build.
  • Not one star but two. It is a binary: two stars orbiting a shared centre of mass. More than half of all the 'stars' you can see are actually multiple systems.

What it actually is

  • Spectral class. Its spectrum reads K1V — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • Where it is in life. It is on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 1.4 you can see it with your own eyes from a dark site, over in Centaurus.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • Best time of year. It stands highest in the middle of the night around April — that's when to go looking.

Properties

absmag
5.739
binary
yes
bv
0.9
constellation
Cen
dist ly
4.3209
luminosity
0.441
mag
1.35
name
Toliman
named
yes
spect
K1V

About Toliman

Toliman is an anomaly star. It lies about 4.3 light-years from Earth, sits in the constellation Cen, shines at apparent magnitude 1.35 and has spectral type K1V.

One of the closest objects of its kind to the Sun — a first port of call for any interstellar mission we ever build.

How to see it

Look for Toliman in the constellation Cen. At apparent magnitude 1.35, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Toliman 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 Toliman is an anomaly star

Toliman scores 81 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 39 points would lift it into a rarer tier.

That score comes from 8 science badges — Star, Stellar next door (<10 ly), Naked-eye visible, Binary star, Has a proper name, Orange K-type star, Main-sequence star and Alpha Centauri, the nearest star system — 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.