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Common star 17 EP

HIP 40892

RA 125.1723° · Dec 5.1894° · star

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Score breakdown

· 3 badges
17 pts · Common
Common 22 pts → Uncommon
  • Deep red star +8
  • Distant (over 1,000 light-years) +6
  • Star +3
Total score 17

5 more points to reach Uncommon.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Deep red star · +8

Trivia

What it actually is

  • Spectral class. Its spectrum reads R8 — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.

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 Hydra.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around January — 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. ≈ 43.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 3.9 million years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
0.506
bv
2.1
constellation
Hya
dist ly
2489.7405
luminosity
54.6512
mag
9.92
name
HIP 40892
spect
R8

About HIP 40892

HIP 40892 is a common star. It lies about 2,489.7 light-years from Earth, sits in the constellation Hya, shines at apparent magnitude 9.92 and has spectral type R8.

Its spectrum reads R8 — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.

How to see it

Look for HIP 40892 in the constellation Hya. At apparent magnitude 9.92, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 40892 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 HIP 40892 is a common star

HIP 40892 scores 17 points on Spacedle's rarity scale, which places it in the common tier. Another 5 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Distant (over 1,000 light-years) and Deep red 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.