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Common star 19 EP

HD 147455

RA 245.8875° · Dec -34.9502° · star

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Score breakdown

· 4 badges
19 pts · Common
Common 22 pts → Uncommon
  • Sun-like G-type star +8
  • Subgiant (leaving the main sequence) +5
  • Star +3
  • On the zodiac +3
Total score 19

3 more points to reach Uncommon.

Badges

  • Star · +3
  • On the zodiac · +3
  • Sun-like G-type star · +8
  • Subgiant (leaving the main sequence) · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads G6/G8IV/V — a G-type star: the very same spectral class as our own Sun.

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 9.9 you'll want a small backyard telescope, over in Scorpius.
  • 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 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. ≈ 368.8 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
5.611
bv
0.747
constellation
Sco
dist ly
236.1738
luminosity
0.4961
mag
9.91
name
HD 147455
spect
G6/G8IV/V

About HD 147455

HD 147455 is a common star. It lies about 236.2 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 9.91 and has spectral type G6/G8IV/V.

Its spectrum reads G6/G8IV/V — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 147455 in the constellation Sco. At apparent magnitude 9.91, a small backyard telescope will bring it into view.

Like any astronomical target, HD 147455 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 HD 147455 is a common star

HD 147455 scores 19 points on Spacedle's rarity scale, which places it in the common tier. Another 3 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, On the zodiac, Sun-like G-type star and Subgiant (leaving the main sequence) — 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.