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Trash star 11 EP

22Pi Per

RA 44.6903° · Dec 39.6627° · star

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Score breakdown

· 2 badges
11 pts · Trash
Trash 15 pts → Common
  • Naked-eye visible +8
  • Star +3
Total score 11

4 more points to reach Common.

Badges

  • Star · +3
  • Naked-eye visible · +8

Trivia

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 5.4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 483.6 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 3097 years in a starship at a tenth of light speed.
  • Distance. 310 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1716.

Saying hello

  • Say hello. A radio message and its reply would take 619 years round-trip.

Properties

absmag
-0.208
bv
0.065
constellation
Per
dist ly
309.7399
mag
4.68
name
22Pi Per
spect
A2Vn

About 22Pi Per

22Pi Per is a trash star. It lies about 309.7 light-years from Earth, sits in the constellation Per, shines at apparent magnitude 4.68 and has spectral type A2Vn.

22Pi Per is a trash star worth 11 points across 2 science badges. Explore its facts, badges and place on the sky map, then add it to your dex on Spacedle.

How to see it

Look for 22Pi Per in the constellation Per. At apparent magnitude 4.68, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 22Pi Per 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 22Pi Per is a trash star

22Pi Per scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.

That score comes from 2 science badges — Star and Naked-eye visible — 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.

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Sky imagery and survey data courtesy of Aladin Lite & CDS, Strasbourg. Object data from the NASA Exoplanet Archive, JPL Small-Body Database, and the ATNF Pulsar Catalogue.