Spot The Station

Sighting Location

Location: Chelmsford, England, United Kingdom

RSS Bookmark Share .. Embed Print

Embed the sighting opportunities widget on your website

Display the upcoming dates and times for Chelmsford, England, United Kingdom.
Visit the widget page to learn more and for additional options.

Select the color theme for your widget and hit the “Show Code” button:

Show Code

Sign Up Location: Chelmsford, England, United Kingdom

Do you want email or mobile text alerts?

Who is your mobile carrier?

Alert Times

I verify this email account / phone number is mine and I have the right to register for this service.

I understand the National Aeronautics and Space Administration (NASA) is not responsible for any fees that may apply to site users by their wireless carrier or internet provider.

The following ISS sightings are possible from Monday Jul 26, 2021 through Tuesday Aug 10, 2021

Date	Visible	Max Height	Appears	Disappears
Mon Jul 26, 10:56 PM	4 min	28°	10° above W	24° above S
Tue Jul 27, 10:08 PM	6 min	38°	10° above W	15° above SE
Wed Jul 28, 10:59 PM	3 min	14°	10° above WSW	13° above SSW
Thu Jul 29, 10:11 PM	5 min	20°	10° above W	12° above S

The following Nauka sightings are possible from Monday Jul 26, 2021 through Tuesday Aug 10, 2021

Date	Visible	Max Height	Appears	Disappears	Share Event
Tue Jul 27, 10:27 PM	4 min	27°	10° above W	18° above SSE
Wed Jul 28, 11:06 PM	1 min	11°	10° above WSW	11° above SW

What am I looking for in the sky?

The space station looks like an airplane or a very bright star moving across the sky, except it doesn't have flashing lights or change direction. It will also be moving considerably faster than a typical airplane (airplanes generally fly at about 600 miles per hour; the space station flies at 17,500 miles per hour).

Below is a time-lapse photo of the space station moving across the sky.

The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls

Visit the NASA Johnson Flickr Photostream

How do I Spot The Station?

What does all this sighting information mean?

Time is when the sighting opportunity will begin in your local time zone. All sightings will occur within a few hours before or after sunrise or sunset. This is the optimum viewing period as the sun reflects off the space station and contrasts against the darker sky.

Visible is the maximum time period the space station is visible before crossing back below the horizon.

Max Height is measured in degrees (also known as elevation). It represents the height of the space station from the horizon in the night sky. The horizon is at zero degrees, and directly overhead is ninety degrees. If you hold your fist at arm's length and place your fist resting on the horizon, the top will be about 10 degrees.

Appears is the location in the sky where the station will be visible first. This value, like maximum height, also is measured in degrees from the horizon. The letters represent compass directions -- N is north, WNW is west by northwest, and so on.

Disappears represents where in the night sky the International Space Station will leave your field of view.