← Back to dex
Epic variable star 50 EP

HD 98767

RA 170.3414° · Dec -55.7632° · star

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

Computing the sky for your location…

Score breakdown

· 6 badges
50 pts · Epic
Epic 78 pts → Anomaly
  • Carbon star (sooty red) +24
  • Deep red star +8
  • Distant (over 1,000 light-years) +6
  • Variable star +5
  • Gently variable +4
  • A named variable star +3
Total score 50

28 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Distant (over 1,000 light-years) · +6
  • Carbon star (sooty red) · +24
  • Deep red star · +8
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads C+ — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.
  • It changes. This star does not hold still: its brightness rises and falls on a rhythm of hours, days or years, either pulsing in size or being eclipsed by a companion.

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 10.6 you'll want a small backyard telescope, over in Centaurus.
  • 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. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 28.9 million years at Voyager 1's speed (17 km/s).

Properties

absmag
2.073
bv
1.81
constellation
Cen
dist ly
1647.2525
luminosity
12.9062
mag
10.59
name
HD 98767
spect
C+
var amplitude
0.19
var designation
V905
var max
10.483
var min
10.673

About HD 98767

HD 98767 is an epic variable star. It lies about 1,647.3 light-years from Earth, sits in the constellation Cen, shines at apparent magnitude 10.59 and has spectral type C+.

Its spectrum reads C+ — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.

How to see it

Look for HD 98767 in the constellation Cen. At apparent magnitude 10.59, a small backyard telescope will bring it into view.

Like any astronomical target, HD 98767 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 98767 is an epic variable star

HD 98767 scores 50 points on Spacedle's rarity scale, which places it in the epic tier. Another 28 points would lift it into a rarer tier.

That score comes from 6 science badges — Variable star, Distant (over 1,000 light-years), Carbon star (sooty red), Deep red star, Gently variable and A named variable 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.