Black Holes & Neutron Stars Dataset
The compact objects in the graph — black holes (Sgr A*, M87*, Cygnus X-1, V404 Cygni) and neutron stars (the Crab, Vela, first and most-massive pulsars). The physics of these end-states of gravity — the ergosphere, photon sphere, ISCO, jets, neutron degeneracy, the pulsar mechanism and the equation of state — is modelled alongside as reused cosmology, stellar-physics and object-class concepts. Only well-established astrophysics; nothing fabricated.
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Generated from the canonical knowledge graph. Open, machine-readable, and free to reuse under CC BY-SA 4.0.
- Version
- 1.0.0
- Entities
- 8
- Last generated
- 2026-06-29
- License
- CC BY-SA 4.0
- Checksum
- — (published at release)
Sample (8 of 8)
| Name | Type | ID |
|---|---|---|
| Cygnus X-1 (black hole) | Black hole | black_hole:cygnus-x-1 |
| M87* | Black hole | black_hole:m87-star |
| PSR B1919+21 | Neutron star | neutron_star:psr-b1919-21 |
| PSR J0740+6620 | Neutron star | neutron_star:psr-j0740-6620 |
| Sagittarius A* | Black hole | black_hole:sagittarius-a-star |
| The Crab Pulsar | Neutron star | neutron_star:crab-pulsar |
| The Vela Pulsar | Neutron star | neutron_star:vela-pulsar |
| V404 Cygni | Black hole | black_hole:v404-cygni |
Source references
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
- ESOEuropean Southern Observatory
Southern-hemisphere observatory data and imagery (VLT, ALMA partner).