Stationary Craft of a luminous appearance at high altitude

It was around 5-5:30 in which my family and I (my father and eldest sibling) were heading out to pick up some Afghan food in Dublin/Livermore. We headed out via Camino Tassajara Road (Country side region) where we passed Tassajara Hills Elementary School and the soccer stadium nearby, as reference markers.
A few minutes later, while listening to music, I looked to my left and saw a stationary object of pure light hovering at a high altitude. Note too, there was a radio on with my family members talking, but neither was too loud to completely overwhelm my senses. Regardless, no obvious sound, movement, or even the common “position lights” of common aircraft were apparent — non-existent. I recorded this object for around 43 seconds, but had my eyes on it some seconds more prior. Even when I wasn’t recording and looked with my naked eye, I could tell there was no movement whatsoever. In regards to the video, it is wobbly given the rough, hilly road, so I do apologize for that, but hope it helps.
Now first and foremost, I must inform whoever sees this: there are no signal towers that are of that altitude, nor multiple in the distance that could breach these clouds, or be apparent (usually “dim” but still noticeable, however, not like this), no position lights, thus no aircraft, nonetheless, seemed “odd”. Usually you can see a dark dot to indicate a general idea of form, with objects of our knowledge in this time of day (while being overcast, there was a good portion of light left). While some may rule this out as a helicopter, signal tower, etc, none seem viable.
Any grammar, tonal or spelling mistakes, forgive me, since I’m very tired at the moment. Any questions, always welcome to contact me.
Thanks