About J2129+1210D
J2129+1210D is a rare pulsar. It spins once every 4.803 ms and has a dispersion measure of 67.3 pc cm⁻³.
It whirls around 208 times every second.
Rare pulsar 42 EP
J2129+1210D
RA 322.4928° · Dec 12.1666° · pulsar
Score breakdown
· 2 badgesRare 46 pts → Epic
- Pulsar +22
- Millisecond pulsar +20
Total score 42
4 more points to reach Epic.
Badges
- Pulsar · +22
- Millisecond pulsar · +20
Trivia
By the numbers
- Spin. It whirls around 208 times every second.
- Density. A sugar-cube of its core would weigh about a billion tonnes.
Properties
- dm
- 67.3
- name
- J2129+1210D
- period ms
- 4.8028
How to see it
Like any astronomical target, J2129+1210D 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 J2129+1210D is a rare pulsar
J2129+1210D scores 42 points on Spacedle's rarity scale, which places it in the rare tier. Another 4 points would lift it into a rarer tier.
That score comes from 2 science badges — Pulsar and Millisecond 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.