From San Diego , η-Cas is visible all night. It will become visible at around 17:45 (PST), 60° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 19:15, 64° above your northern horizon. It will continue to be observable until around 02:42, when it sinks below 16° above your north-western horizon.
Object type Star
|Right ascension:||00h49m05s |
|Magnitude:||3.46 (V) |
4.16 (BT) 
3.52 (VT) 
19.4 lightyrs 
|B-V Color (mag):||0.58|
|Proper motion (speed):||1.22 arcsec/yr|
|Proper motion (pos ang):||117.2°|
|Absolute mag (V):||4.59|
All times shown in San Diego local time.