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Common star 19 EP

HD 103813

RA 179.3570° · Dec 26.7622° · 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 G7IV-V — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a subgiant, caught in the act of leaving the main sequence as the hydrogen in its core runs out.

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 7.4 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Leo.
  • 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 March — 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. ≈ 7 million years at Voyager 1's speed (17 km/s).

Properties

absmag
2.017
bv
0.957
constellation
Leo
dist ly
396.3014
luminosity
13.5894
mag
7.44
name
HD 103813
spect
G7IV-V

Nearby objects

About HD 103813

HD 103813 is a common star. It lies about 396.3 light-years from Earth, sits in the constellation Leo, shines at apparent magnitude 7.44 and has spectral type G7IV-V.

Its spectrum reads G7IV-V — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 103813 in the constellation Leo. At apparent magnitude 7.44, it is an easy target for binoculars.

Like any astronomical target, HD 103813 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 103813 is a common star

HD 103813 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.