Astronomer Mike Brown describes how his search for a tenth planet, Eris, a planet more massive than Pluto, led to the demotion of Pluto to a dwarf planet.
| hid | mid | miid | nid | wid | location_code | location | barcode | callnum | dewey | created | updated |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 139003 | 4012723 | 2269 | 53658 | 94660 | LIVH | 286 | T 313027 | 523.49 BRO | 523.49 | 1575485655 | 1709567815 |
| 1314561 | 4979938 | 2319 | 53658 | 94660 | PEHS | 370 | PEHS47965 | 523.49 BRO | 523.49 | 1581465224 | 1736518457 |
| 2832532 | 6315824 | 2390 | 53658 | 94660 | HOS | 269 | H050052905 | 628 BRO | 628 | 1637782573 | 1736800991 |
| 3067614 | 6519790 | 2412 | 53658 | 94660 | PMH | 360 | PMS0103979 | 523.49 BRO | 523.49 | 1637782573 | 1736800991 |