Details on Acronym: U | |
| U | (UV-excess) |
| ***** | Avoid the usage of U, prefer US |
| Origin | of the Acronym: L = Found in the literature |
Details on Acronym: US | |
| US | (UV-excess Starlike)= (U) |
| Write: | <<US NNNN>> <<US NNNN.N>> |
| N: | 3987+24 |
| Object: | Faint Blue Obj. (SIMBAD class: blue = Blue Object) |
| Note: | Contains primarily quasars and white dwarfs. New stars with a format 'NNNN.N' are added later. Identif. charts in all papers. |