← Back to dex
Trash variable star 5 EP

13Del Ser

RA 233.7006° · Dec 10.5389° · star

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

Computing the sky for your location…

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. ≈ 4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 356.1 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 2281 years in a starship at a tenth of light speed.
  • Distance. 228 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1798.

Saying hello

  • Say hello. A radio message and its reply would take 456 years round-trip.

Properties

absmag
-0.423
bv
0.268
constellation
Ser
dist ly
228.0812
mag
3.8
name
13Del Ser
spect
F0IV

About 13Del Ser

13Del Ser is a trash variable star. It lies about 228.1 light-years from Earth, sits in the constellation Ser, shines at apparent magnitude 3.8 and has spectral type F0IV.

13Del 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 13Del Ser in the constellation Ser. At apparent magnitude 3.8, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 13Del 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 13Del Ser is a trash variable star

13Del 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.

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.