HRD is about a century old collected data.
How do we know about the stars without
the time required?
The Hubble sphere would be an assumption
because it is beyond observation...
| Sysop: | Keyop |
|---|---|
| Location: | Huddersfield, West Yorkshire, UK |
| Users: | 505 |
| Nodes: | 16 (0 / 16) |
| Uptime: | 66:08:24 |
| Calls: | 9,927 |
| Calls today: | 3 |
| Files: | 13,804 |
| Messages: | 6,346,721 |
| Posted today: | 2 |