Shades of the pyramid UFOs of six months to a year ago. This photo taken over Brooklyn last night appears entirely authentic. What the object might be is another question. A kite? Remotely possible. More probable: unknown.
Lens flare anomaly, angular pointing towards the sun.
Definitely lens flare / aperture anomaly. Aren't there enough genuinely intriguing photos and videos out there that we have to waste time on this kind of misperception?