Moving "star" turned bright bright blue and traveled at a fast pace.

The object looked like a star but was moving across the sky at a semi-fast pace. Once it reached the constellation  Lynx, the moving "star" started to turn bright, bright blue. 
Slowly it faded back to original color, through binoculars it just look like a moving star. It seemed to be going farther up because it faded and went to far for  the eyes to see. 
Two women witnessed the UFO. It didn't look like a comet, the women star-gaze everynight.
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If the time indicated by the witness is accurate, the event cannot be ascribed to the "flare" of an Iridium satellite.  The only flare at about that time of morning is reported to have occurred at 03:39 hrs.  
The information below is from 
14 Jul 23:09:24 -4 16° 255° (WSW) 40.7 km (W) -6 Iridium 75 
15 Jul 03:39:35 -3 28° 126° (SE ) 25.0 km (E) -7 Iridium 37 
15 Jul 04:59:29 -1 13° 82° (E ) 126.1 km (W) -5 Iridium 12 
15 Jul 05:48:00 -3 20° 33° (NNE) 19.8 km (E) -6 Iridium 56 
15 Jul 05:52:03 -0 22° 32° (NNE) 56.5 km (W) -6 Iridium 16 
PD))