Mosgiel resident Bruce Smaill — a crew chief at Dunedin Airport — said it was actually a Boeing 787 Dreamliner, operated by LATAN airlines, flying a repatriation flight from Sydney to Santiago, Chile, flying at 37,000 feet.
He used binoculars to get a closer look at it and could see the anti-collision light flashing.
"I found it [the plane] on Flight Radar straight away, and then there was another one about an hour later, on the exact same flight path."
Southland Astronomical Society astronomer Mike Bailey had initially examined Mr Wilcox's footage and believed the object to be a meteor.