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Common star 20 EP

HR 5887

RA 236.9080° · Dec 55.3766° · star

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Score breakdown

· 4 badges
20 pts · Common
Common 22 pts → Uncommon
  • Naked-eye visible +8
  • White A-type star +5
  • Never sets (northern circumpolar) +4
  • Star +3
Total score 20

2 more points to reach Uncommon.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Never sets (northern circumpolar) · +4
  • White A-type star · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads A3m — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 5.8 you can see it with your own eyes from a dark site, over in Draco.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around May — 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. ≈ 4.2 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 375.8 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
1.51
bv
0.249
constellation
Dra
dist ly
240.7054
luminosity
21.677
mag
5.85
name
HR 5887
spect
A3m

About HR 5887

HR 5887 is a common star. It lies about 240.7 light-years from Earth, sits in the constellation Dra, shines at apparent magnitude 5.85 and has spectral type A3m.

Its spectrum reads A3m — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

How to see it

Look for HR 5887 in the constellation Dra. At apparent magnitude 5.85, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 5887 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 HR 5887 is a common star

HR 5887 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, Never sets (northern circumpolar) and White A-type 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.