← Back to dex
Common star 20 EP

7Nu 2CMa

RA 99.1710° · Dec -19.2559° · star

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 4 badges
20 pts · Common
Common 22 pts → Uncommon
  • Naked-eye visible +8
  • Giant star +6
  • Star +3
  • Orange K-type star +3
Total score 20

2 more points to reach Uncommon.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Orange K-type star · +3
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads K1III+... — 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 a giant. It has already exhausted its core hydrogen and swollen up enormously in response.

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 4 you can see it with your own eyes from a dark site, over in Canis Major.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around December — that's when to go looking.

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 1.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
2.472
bv
1.037
constellation
CMa
dist ly
64.4194
luminosity
8.9372
mag
3.95
name
7Nu 2CMa
spect
K1III+...

About 7Nu 2CMa

7Nu 2CMa is a common star. It lies about 64.4 light-years from Earth, sits in the constellation CMa, shines at apparent magnitude 3.95 and has spectral type K1III+....

Its spectrum reads K1III+... — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

How to see it

Look for 7Nu 2CMa in the constellation CMa. At apparent magnitude 3.95, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 7Nu 2CMa 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 7Nu 2CMa is a common star

7Nu 2CMa scores 20 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Naked-eye visible, Orange K-type star and Giant 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.