← Back to dex
Trash star 11 EP

Eta Lup

RA 240.0305° · Dec -38.3967° · star

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

Computing the sky for your location…

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. ≈ 7.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 690.1 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 4419 years in a starship at a tenth of light speed.
  • Distance. 442 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1584.

Saying hello

  • Say hello. A radio message and its reply would take 884 years round-trip.

Properties

absmag
-2.24
bv
-0.206
constellation
Lup
dist ly
441.9459
mag
3.42
name
Eta Lup
spect
B2.5IV

About Eta Lup

Eta Lup is a trash star. It lies about 441.9 light-years from Earth, sits in the constellation Lup, shines at apparent magnitude 3.42 and has spectral type B2.5IV.

Eta Lup 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 Eta Lup in the constellation Lup. At apparent magnitude 3.42, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Eta Lup 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 Eta Lup is a trash star

Eta Lup 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.

spacedle A daily roll through the real universe. © 2026 spacedle. Buy me a coffee

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.