Crab Pulsar

Young neutron star at the heart of the Crab Nebula, the remnant of a supernova seen in 1054 AD. Spins ~30 times per second.

ATNF psrcat Position basis, the same label the app shows on the selection card.

Open in Space Time

Every aspect, with its origin

One record per aspect. The origin says what kind of thing each value is; the source says where it came from; the limit says what it cannot tell you.

ObservedCatalogComputedReconstructedIllustrativeUndocumented

Position Catalog

Sky position and distance

Crab Pulsar is placed at J2000 RA 5.6 h, Dec 22° at 6,500 light-years.

SourceATNF Pulsar Catalogue

EpochJ2000

LimitThe retrieval date of the catalogue values is not recorded. Beam and field-line visuals are display-scaled.

Appearance Illustrative

Beams and magnetosphere

The radiation cones and field lines are schematic. Their size is chosen so the pulsar is visible from far away; the real emission region is kilometres across.

SourceSpace Time rendering contract

Description Undocumented

Description and facts

The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.

SourceSpace Time editorial text

LimitBackground reading is linked under Further reading; it is not the source of the displayed numbers.

What is not measured

Appearance: a picture, not a measurement. Beams and magnetosphere. The radiation cones and field lines are schematic. Their size is chosen so the pulsar is visible from far away; the real emission region is kilometres across.

Not yet documented

Physical data: no record. Space Time does not claim a source for this aspect.
Description: Background reading is linked under Further reading; it is not the source of the displayed numbers.

Sources cited

ATNF Pulsar Catalogue
Space Time rendering contract
Space Time editorial text