72 Days. Jet Star produces big yields of large, clean fruit, quite free of cracks and scars, in the second early season. Globe-shaped fruit with bright, attractive color inside and out have a very pleasant flavor. Sturdy, indeterminate vines grow vigorously, producing heavily on stakes or on the ground.We suggest that you tell your customers: Jet Star is a low acid tomato. If you wish to can Jet Star, please add lemon juice.