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Trash variable star 5 EP

25 Ser

RA 236.5235° · Dec -1.8042° · star

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Score breakdown

· 1 badge
5 pts · Trash
Trash 15 pts → Common
  • Variable star +5
Total score 5

10 more points to reach Common.

Badges

  • Variable star · +5

Trivia

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 7.9 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 702.4 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 4499 years in a starship at a tenth of light speed.
  • Distance. 450 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1576.

Saying hello

  • Say hello. A radio message and its reply would take 900 years round-trip.

Properties

absmag
-0.308
bv
-0.035
constellation
Ser
dist ly
449.8702
mag
5.39
name
25 Ser
spect
B8III

About 25 Ser

25 Ser is a trash variable star. It lies about 449.9 light-years from Earth, sits in the constellation Ser, shines at apparent magnitude 5.39 and has spectral type B8III.

25 Ser is a trash variable star worth 5 points across 1 science badge. Explore its facts, badges and place on the sky map, then add it to your dex on Spacedle.

How to see it

Look for 25 Ser in the constellation Ser. At apparent magnitude 5.39, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 25 Ser 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 25 Ser is a trash variable star

25 Ser scores 5 points on Spacedle's rarity scale, which places it in the trash tier. Another 10 points would lift it into a rarer tier.

That score comes from 1 science badge — 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.

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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.