Have you crossed the equator's invisible line? Do you live on or near it? If so, we want to hear from you!
To send us your photographs or memories, please read the terms and conditions below.
If you wish to continue, email us at thisworld@bbc.co.uk. Please remember to tell us your name and where you are from.
A selection of your pictures and comments will be published on the Equator website during the series.
When taking photos please do not endanger yourself or others, take unnecessary risks or infringe any laws.
The BBC may edit your comments and not all emails will be published. Your comments may be published on any BBC media worldwide.
Terms and conditions
If you submit an image, you do so in accordance with the BBC's Terms and Conditions.
In contributing to BBC News you agree to grant us a royalty-free, non-exclusive licence to publish and otherwise use the material in any way that we want, and in any media worldwide. This may include the transmission of the material by our overseas partners; these are all reputable foreign news broadcasters who are prohibited from altering the material in any way or making it available to other UK broadcasters or to the print media. (See the Terms and Conditions for the full terms of our rights.)
It's important to note, however, that you still own the copyright to everything you contribute to BBC News and that if your image and/or video is accepted, we will endeavour to publish your name alongside it on the BBC News website. Please note that due to operational reasons this accreditation will probably not be possible with video. The BBC cannot guarantee that all pictures and/or video will be used and we reserve the right to edit your comments.
At no time should you endanger yourself or others, take any unnecessary risks or infringe any laws.