These calculators produce numbers intended to assist in planning an observatory. They are provided as-is, without warranty of any kind. Always independently verify critical measurements and clearances before construction, purchase, or any physical build decision.
The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and non-infringement. In no event shall the authors or copyright holders be liable for any claim, damages, or other liability, whether in an action of contract, tort, or otherwise, arising from, out of, or in connection with the software or the use or other dealings in the software.
These tools perform geometric calculations based on the measurements you enter. The accuracy of any output depends entirely on the accuracy of your inputs. A measuring error, a transcription error, or a misunderstanding of what a field represents will produce incorrect output — and an incorrect clearance figure used in a real build could result in physical damage to equipment or the observatory structure.
Before cutting material, placing a foundation, or purchasing components based on these calculations, independently verify the critical measurements yourself — ideally with a second method or by having another person check your inputs and interpret the results.
The dome calculator produces values intended for NINA's Options → Dome tab. NINA is third-party software maintained independently of these tools. We make no warranty that values produced here will behave correctly in any specific version of NINA.
These tools are geometry calculators, not a substitute for professional engineering advice. For any observatory build involving permanent foundations, structural modifications, or significant investment, consult a qualified professional.