← Back to dex
Uncommon pulsar 30 EP

J1637-4335

RA 249.4867° · Dec -43.5950° · pulsar

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

Computing the sky for your location…

Score breakdown

· 2 badges
30 pts · Uncommon
Uncommon 33 pts → Rare
  • Pulsar +22
  • Deeply embedded (high DM) +8
Total score 30

3 more points to reach Rare.

Badges

  • Pulsar · +22
  • Deeply embedded (high DM) · +8

Trivia

By the numbers

  • Spin. It whirls around 1.3 times every second.
  • Density. A sugar-cube of its core would weigh about a billion tonnes.

Properties

bsurf
1690965169000
dm
608
name
J1637-4335
period ms
771.3665

About J1637-4335

J1637-4335 is an uncommon pulsar. It spins once every 771.367 ms, has a dispersion measure of 608 pc cm⁻³ and carries a surface magnetic field around 1.69×10^12 G.

It whirls around 1.3 times every second.

How to see it

Like any astronomical target, J1637-4335 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 J1637-4335 is an uncommon pulsar

J1637-4335 scores 30 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.

That score comes from 2 science badges — Pulsar and Deeply embedded (high DM) — 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.