← Back to dex
Trash star 10 EP

HD 97781

RA 168.7363° · Dec -18.7987° · star

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

Computing the sky for your location…

Score breakdown

· 3 badges
10 pts · Trash
Trash 15 pts → Common
  • White A-type star +5
  • Star +3
  • Main-sequence star +2
Total score 10

5 more points to reach Common.

Badges

  • Star · +3
  • White A-type star · +5
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads A9/F0V+... — 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 9.1 you'll want a small backyard telescope, over in Crater.
  • 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 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. ≈ 8.7 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 776.3 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
3.205
bv
0.354
constellation
Crt
dist ly
497.1889
luminosity
4.5499
mag
9.12
name
HD 97781
spect
A9/F0V+...

About HD 97781

HD 97781 is a trash star. It lies about 497.2 light-years from Earth, sits in the constellation Crt, shines at apparent magnitude 9.12 and has spectral type A9/F0V+....

Its spectrum reads A9/F0V+... — 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 HD 97781 in the constellation Crt. At apparent magnitude 9.12, a small backyard telescope will bring it into view.

Like any astronomical target, HD 97781 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 97781 is a trash star

HD 97781 scores 10 points on Spacedle's rarity scale, which places it in the trash tier. Another 5 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, White A-type star and Main-sequence 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.