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Uncommon star 29 EP

Aladfar

RA 288.4395° · Dec 39.1460° · star

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Score breakdown

· 4 badges
29 pts · Uncommon
Uncommon 33 pts → Rare
  • Distant (>1000 ly) +10
  • Naked-eye visible +8
  • Has a proper name +8
  • Star +3
Total score 29

4 more points to reach Rare.

Badges

  • Star · +3
  • Distant (>1000 ly) · +10
  • Naked-eye visible · +8
  • Has a proper name · +8

Trivia

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 24.4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 2.2 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 13.9 thousand years in a starship at a tenth of light speed.
  • Distance. 1388 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 638.

Saying hello

  • Say hello. A radio message and its reply would take 2776 years round-trip.

How we found it

  • Named. Notable enough to have earned a proper name, not just a catalogue number.

Properties

absmag
-3.715
bv
-0.15
constellation
Lyr
dist ly
1387.8978
mag
4.43
name
Aladfar
named
yes
spect
B2.5IV

About Aladfar

Aladfar is an uncommon star. It lies about 1,387.9 light-years from Earth, sits in the constellation Lyr, shines at apparent magnitude 4.43 and has spectral type B2.5IV.

Notable enough to have earned a proper name, not just a catalogue number.

How to see it

Look for Aladfar in the constellation Lyr. At apparent magnitude 4.43, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Aladfar 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 Aladfar is an uncommon star

Aladfar scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 4 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Distant (>1000 ly), Naked-eye visible and Has a proper name — 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.