About J1821-0331
J1821-0331 is a common pulsar. It spins once every 902.316 ms, has a dispersion measure of 171.5 pc cm⁻³ and carries a surface magnetic field around 1.53×10^12 G.
It whirls around 1.1 times every second.
Common pulsar 22 EP
J1821-0331
RA 275.4362° · Dec -3.5202° · pulsar
Score breakdown
· 1 badgeCommon 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 1.1 times every second.
- Density. A sugar-cube of its core would weigh about a billion tonnes.
Properties
- bsurf
- 1528936607000
- dm
- 171.5
- name
- J1821-0331
- period ms
- 902.3156
How to see it
Like any astronomical target, J1821-0331 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 J1821-0331 is a common pulsar
J1821-0331 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.