About J1931+1817
J1931+1817 is an uncommon pulsar. It spins once every 234.131 ms, has a dispersion measure of 465 pc cm⁻³ and carries a surface magnetic field around 5.07×10^12 G.
It whirls around 4.3 times every second.
Uncommon pulsar 30 EP
J1931+1817
RA 292.9697° · Dec 18.2835° · pulsar
Score breakdown
· 2 badgesUncommon 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 4.3 times every second.
- Density. A sugar-cube of its core would weigh about a billion tonnes.
Properties
- bsurf
- 5073510710000
- dm
- 465
- name
- J1931+1817
- period ms
- 234.1314
How to see it
Like any astronomical target, J1931+1817 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 J1931+1817 is an uncommon pulsar
J1931+1817 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.