Sideris
Press kit
Everything needed to write about Sideris: the artwork, the screenshots, the facts and some copy to quote. Take what you need without asking first. If something is missing, write to [email protected] and I will send it.
The facts
- Name
- Sideris
- Developer
- Sideris Studio (independent developer)
- Platforms
- Android 7.0 and later, iOS 15 and later. Phones and tablets. There is no desktop or web version.
- Price
- Free to install. The first ten plate solves are free, and unlimited solving is a one-time purchase of $9.99 or €9.99. There is no subscription and nothing expires.
- Category
- Education on Google Play. Education on the App Store, with Reference as the secondary category.
- Languages
- English
- Version
- 1.0
- Availability
- Coming soon to the App Store and Google Play
- Website
- siderisstudio.com
- Press contact
- [email protected]
- Last updated
- 4 September 2026
The whole kit
Icon
Logo with the name
PNG, 1650 by 700, for an article header or a video title. Two versions, which between them cover any layout: the one on its own navy panel may be placed on any ground, and the transparent one sets the name in the same navy for a light page.
Banner
Screenshots
Seven screens, each in the app's day theme and in the red night theme it switches to after dark. JPEG at 1080 by 2340, straight from the phone.
Colours and type
The app is drawn in five colours. The navy is the ground of every screen and of the banner; the panel colour carries the cards, and it is the navy the name is set in on the transparent logo. Cyan is the accent by day. After dark the accent and the text both turn to the night red, painted at 82 percent over the navy so that it glows rather than shouts.
- Navy#1A1A2E
- Panel#2A2A4A
- Cyan#00E5FF
- Night red#FF3535
- Text#E0E0E0
Two typefaces: Inter for everything written, in Regular, Medium, SemiBold and Bold, and JetBrains Mono for coordinates and other figures, in Regular, Medium and SemiBold. Both are published under the SIL Open Font License, so the seven files ship in the kit's type/ folder with their licences beside them, and may be used to set a caption or a title in the app's own voice.
Description
Three lengths of the same description, written to be pasted as they are. The same text is in the kit's README.
Sideris is a plate solver and interactive star map for astrophotographers: photograph the night sky and know exactly where the camera is pointing, with every solved frame overlaid on the star map.
Point your camera at the night sky and know exactly what you captured. Sideris is a plate-solving companion and interactive star map built for astrophotographers with simple gear: a camera, a lens, and a star tracker. No go-to mount required. Take a photo of the sky and Sideris solves it: it identifies the exact patch of sky in the frame and reports where the camera is pointing, in real celestial coordinates. The photograph is then overlaid on the star map, at the right angle and the right size, among the stars and deep-sky objects that surround it.
Point your camera at the night sky and know exactly what you captured.
Sideris is a plate-solving companion and interactive star map built for astrophotographers with simple gear: a camera, a lens, and a star tracker. No go-to mount required. Take a photo of the sky and Sideris solves it: it identifies the exact patch of sky in the frame and reports where the camera is pointing, in real celestial coordinates. The photograph is then overlaid on the star map, at the right angle and the right size, among the stars and deep-sky objects that surround it.
The star map carries all 110 Messier objects, each with a real NASA and ESA photograph and an altitude curve showing when it climbs highest and when the sky is dark enough to shoot it. For the field there is a polar alignment scope for a star tracker, a dimmable white panel for flat frames, a moon phase calendar, and a night mode that turns on automatically after dark and preserves night vision.
Solving works fully offline. No signal needed at your dark site.
About the developer
Sideris is written by one person. I am a software engineer, and Sideris is my first app. I took up astrophotography two years ago with a Nikon camera and a Star Adventurer mount, and found that spending nights under the stars was wonderful, but that finding small, faint targets without a go-to mount was a constant frustration.
The workaround I found, in a video by Nico Carver of the Nebula Photos channel, was to photograph the camera screen and send the picture to Astrometry.net to find out where it pointed. It worked, but it was slow and it needed an internet connection. I wrote a prototype around the open-source solver, found it useful enough that other people with simple gear, like me, might want it too, and spent about eight months of personal time turning it into a full app.
Using these files
These files may be used in articles, reviews and videos about Sideris, in print and online, without asking first.
Please do not alter the icon or the logo with the name: no recolouring, no stretching, no added effects, and no cropping. There is no need to, since the transparent logo sets the name in navy for a light page and the one on its own panel covers every other ground. The screenshots may be scaled to fit, but please do not crop or stretch them: each one shows a real screen of the app, and it should reach a reader as it reaches a user.
The deep sky photographs shown inside the app, including those visible in the Deep sky objects screenshot, are public domain material created by NASA and ESA. They are not Sideris Studio's to license, and where one appears the credit belongs to NASA, STScI and ESA.