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Common variable star 18 EP

HIP 53911

RA 165.4663° · Dec -34.7047° · star

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Score breakdown

· 3 badges
18 pts · Common
Common 22 pts → Uncommon
  • Strongly variable +10
  • Variable star +5
  • A named variable star +3
Total score 18

4 more points to reach Uncommon.

Badges

  • Variable star · +5
  • Strongly variable · +10
  • A named variable star · +3

Trivia

What it actually is

  • 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 10.9 you'll want a small backyard telescope, over in Hydra.
  • 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. ≈ 3.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 273.5 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
7.27
bv
0.721
constellation
Hya
dist ly
175.1644
luminosity
0.1076
mag
10.92
name
HIP 53911
var amplitude
0.59
var designation
TW
var max
10.524
var min
11.114

About HIP 53911

HIP 53911 is a common variable star. It lies about 175.2 light-years from Earth, sits in the constellation Hya and shines at apparent magnitude 10.92.

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.

How to see it

Look for HIP 53911 in the constellation Hya. At apparent magnitude 10.92, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 53911 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 53911 is a common variable star

HIP 53911 scores 18 points on Spacedle's rarity scale, which places it in the common tier. Another 4 points would lift it into a rarer tier.

That score comes from 3 science badges — Variable star, Strongly 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.