← Back to dex
Common pulsar 22 EP

J1817-2311

RA 274.2500° · Dec -23.1833° · pulsar

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

Computing the sky for your location…

Score breakdown

· 1 badge
22 pts · Common
Common 24 pts → Uncommon
  • Pulsar +22
Total score 22

2 more points to reach Uncommon.

Badges

  • Pulsar · +22

Trivia

By the numbers

  • Spin. It whirls around 1.6 times every second.
  • Density. A sugar-cube of its core would weigh about a billion tonnes.

Properties

dm
240
name
J1817-2311
period ms
625.47

About J1817-2311

J1817-2311 is a common pulsar. It spins once every 625.47 ms and has a dispersion measure of 240 pc cm⁻³.

It whirls around 1.6 times every second.

How to see it

Like any astronomical target, J1817-2311 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 J1817-2311 is a common pulsar

J1817-2311 scores 22 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.

That score comes from 1 science badge — Pulsar — 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.