About J1804-2858
J1804-2858 is an anomaly pulsar. It spins once every 1.493 ms and has a dispersion measure of 232.53 pc cm⁻³.
Among the fastest-spinning objects known — hundreds of rotations per second.
Anomaly pulsar 92 EP
J1804-2858
RA 271.0063° · Dec -28.9796° · pulsar
Score breakdown
· 3 badgesAnomaly 95 pts → Mythic
- Record-breaking spin +50
- Pulsar +22
- Millisecond pulsar +20
Total score 92
3 more points to reach Mythic.
Badges
- Pulsar · +22
- Millisecond pulsar · +20
- Record-breaking spin · +50
Trivia
What makes it special
- Record spin. Among the fastest-spinning objects known — hundreds of rotations per second.
By the numbers
- Spin. It whirls around 670 times every second.
- Density. A sugar-cube of its core would weigh about a billion tonnes.
Properties
- dm
- 232.528
- name
- J1804-2858
- period ms
- 1.4927
How to see it
Like any astronomical target, J1804-2858 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 J1804-2858 is an anomaly pulsar
J1804-2858 scores 92 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 3 points would lift it into a rarer tier.
That score comes from 3 science badges — Pulsar, Millisecond pulsar and Record-breaking spin — 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.