Community Corner

Int'l Space Station Visible Over Castro Valley: When To Look Up

You'll have four consecutive nights when conditions are optimal for seeing the space station.

CASTRO VALLEY, CA — This is a good week for people in Castro Valley to cast their gaze to the sky to get a glimpse of the International Space Station.

In orbit for 25 years now, the International Space Station looks like a bright star or small plane, but travels much faster, at 17,500 miles an hour, according to NASA.

If sky conditions allow it — and it's supposed to be perfectly clear here — the space station should be visible over the next several nights. The longest window for space station viewing is on Friday, when it should be visible for about 7 minutes, starting at 8:12 p.m. local time. Thursday, Saturday, and Sunday are good nights for viewing, too.

NASA offers more tips on where to look in the sky to spot the space station. The max height on Saturday will be 46 degrees. It appears in the West Southwest sky and disappears in the Northeast sky.

While the space station is constantly in orbit, it is more visible at times due to the reflection of the sun against the darker sky. The optimum time to see the space station at any time of year is within a few hours before or after sunrise or sunset.

Unlike unidentified flying objects that are the focus of a special office at the Pentagon, the space station is easily distinguishable from other lights in the sky. It doesn’t have flashing lights, moves much faster and at higher altitudes than an airplane and moves across the sky from east to west.

More than 3,700 investigations have been conducted aboard the microgravity research lab. The inquiries have resulted in 4,000 articles published in scientific journals.

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