LDN 558 (Dark nebula)
                    From South El Monte , LDN 558 will become visible at around 17:57 (PST), 41° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 21:34.
| 
                 
                    Name
                    LDN 558                 
             | 
            
                 
                    Object type
                    Dark nebula                 
             | 
        
| Right ascension: | 18h37m [1] | 
| Declination: | −01°37' [1] | 
| Constellation: | Serpens Cauda | 
All times shown in South El Monte local time.