Arp 139 (Galaxy cluster)
 
                    From South El Monte , Arp 139 is visible in the dawn sky, rising at 03:55 (PDT) – 3 hours and 13 minutes before the Sun – and reaching an altitude of 24° above the eastern horizon before fading from view as dawn breaks at around 06:08.
| 
                    Name
                    Arp 139                 | 
                    Object type
                    Galaxy cluster                 | 
| Right ascension: | 13h07m [1] | 
| Declination: | +26°43' [1] | 
| Constellation: | Coma Berenices | 
| Magnitude: | 15.80 (V) [1] | 
All times shown in South El Monte local time.
 
                        