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Uncommon star 27 EP

HD 102428

RA 176.8683° · Dec 20.0338° · star

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Score breakdown

· 4 badges
27 pts · Uncommon
Uncommon 34 pts → Rare
  • Supergiant +18
  • Star +3
  • On the zodiac +3
  • Yellow-white F-type star +3
Total score 27

7 more points to reach Rare.

Badges

  • Star · +3
  • On the zodiac · +3
  • Yellow-white F-type star · +3
  • Supergiant · +18

Trivia

What it actually is

  • Spectral class. Its spectrum reads F5Iab: — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • Where it is in life. It is a supergiant. Drop it where the Sun is and its surface would engulf the inner planets.

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. ≈ 5.3 million years at Voyager 1's speed (17 km/s).

Properties

absmag
2.529
bv
0.495
constellation
Leo
dist ly
301.7168
luminosity
8.4801
mag
7.36
name
HD 102428
spect
F5Iab:

About HD 102428

HD 102428 is an uncommon star. It lies about 301.7 light-years from Earth, sits in the constellation Leo, shines at apparent magnitude 7.36 and has spectral type F5Iab:.

Its spectrum reads F5Iab: — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 102428 in the constellation Leo. At apparent magnitude 7.36, it is an easy target for binoculars.

Like any astronomical target, HD 102428 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 102428 is an uncommon star

HD 102428 scores 27 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 7 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, On the zodiac, Yellow-white F-type star and Supergiant — 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.