Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| NGC number | Object type | Constellation | Right ascension ( J2000 ) | Declination ( J2000 ) | Apparent magnitude |
| --- | --- | --- | --- | --- | --- |
| 3603.0 | Diffuse nebula | Carina | 11h15m09.1s | °16′17″ | 10.1 |
| 3621.0 | Spiral galaxy | Hydra | 11h18m16.8s | °48′49″ | 10.0 |
| 3623.0 | Spiral galaxy | Leo | 11h18m55.8s | °05′32″ | 9.6 |
| 3627.0 | Spiral galaxy | Leo | 11h20m15.1s | °59′22″ | 8.9 |
| 3628.0 | Spiral galaxy | Leo | 11h20m16.9s | °35′14″ | 11.5 |
| 3629.0 | Spiral galaxy | Leo | 11h20m31.9s | °57′47″ | 12.9 |
| 3690.0 | Interacting galaxies | Ursa Major | 11h28m33.1s | °33′54″ | 11.8 |
Question:
What is the least apparent magnitude for all constellations from hydra?
Answer:
10.0