Using Solar Eclipse
On Solar Eclipse and in the Shadow Atlas, I share articles about solar eclipses, photographs, a calendar, maps and simulations. You can use all these materials and tools for free, without an account, subscription, email address or payment.
To start, open a page or tool in a browser. You can leave at any time. You need an internet connection and a web browser. Interactive maps and simulations require JavaScript. Please use the sites lawfully and do not use them to send unlawful content.
Leaving a one-time tip
You can leave a voluntary tip to support my work on articles, maps and photographs you have found useful. It is a way to thank me for material you have already used and help me develop Solar Eclipse and publish more articles. You have the same access whether or not you leave a tip.
A tip is voluntary. It does not buy additional material or a licence, give you other benefits, or start a subscription. It does not commission an article or commit me to a particular future publication. My business, Marek Mucha IT Infra Services, receives the payment.
The support button opens a page hosted by Stripe Checkout. The English and Spanish forms suggest EUR 4. The Polish form suggests PLN 10. You can enter a different amount. The EUR form accepts cards, and the PLN form accepts cards and BLIK. You see the amount and currency before confirming. You can close the page without paying. Confirmation authorises only this payment.
The maximum per tip is EUR 200 on the euro form or PLN 1,000 on the złoty form. These are independent, fixed limits. Each limit applies to the tip in the form’s base currency and excludes conversion costs. Stripe may offer payment in your local currency and will show the exchange rate and conversion cost before you confirm. You can keep the form’s base currency. Your bank may apply its own exchange rate or fees under its terms.
Mistakes, complaints and refunds
If you make a voluntary payment for the amount you intended, I do not offer a refund solely because you later change your mind.
If something on the site does not work, you entered the wrong amount or you see two charges, email work@mmucha.eu or write to the postal address below. Describe what happened. For a payment issue, include the date, amount and currency and, if you have it, the confirmation reference. Never send your full card number, card security code (CVC), BLIK code or bank login details. If you do not recognise a charge, also contact your bank.
If you report a mistake in the amount, I will review your account of what happened and the payment details. I will return any amount you are legally entitled to receive. If you were charged twice for the same payment, I will refund the duplicate charge in full. I will respond to your complaint by email or post within 14 days of receiving it.
If the law does not require a refund, I may offer one at your request after deducting only the fee that Stripe charged me for that payment and did not return to me. I will tell you the documented fee and the exact amount I propose to refund. I will issue this refund once you expressly agree to that amount.
I issue refunds through Stripe to the original payment method. If a refund cannot be completed that way, I will contact you about it. The time it takes for a refund to appear depends on your bank and payment method. These terms do not limit your statutory rights, including your right of withdrawal where it applies.
Privacy
I am Marek Mucha, the controller of your personal data in connection with this site. My business details are in the contact section. To exercise your rights or ask about your data, email work@mmucha.eu or use my postal address below.
When you visit
Your browser sends its IP address and request details to Hostinger, which delivers the site and runs its infrastructure on my behalf. Technical logs may include your IP address, the time and address of the request and the browser type. I use technical data to deliver the page you request (Article 6(1)(b) GDPR). I use logs to detect faults, abuse and security incidents, which is my legitimate interest (Article 6(1)(f)).
On solareclipse.pl, fonts load from the same domain. When you select a language or tick items on the preparation checklist, the site saves your choices in your browser under solar-language and solar-checklist respectively. You can change these choices or clear the site’s data in your browser settings.
The separate atlas at mapa.solareclipse.pl loads fonts from Google Fonts and map libraries from cdnjs (Cloudflare) and jsDelivr. To deliver a file, the provider receives at least your IP address and the address of the resource requested directly from your browser. This terms page does not load external fonts or scripts or embed a Stripe payment form.
When you pay or contact me
Stripe Checkout requires your email address and the details needed for your chosen payment method. Stripe shares the information needed to authorise and process the transaction with the bank and payment method provider. You can pay without saving details for later. If you choose Link, Stripe saves your details for future payments through its own Link service, separate from Solar Eclipse. You do not need to give an email address or payment details to browse the site.
Stripe provides me with the amount, currency, date, status and transaction reference. Depending on the payment, I may also receive your email address, name and partial payment method details. I do not receive your full card number or CVC. A tip is not anonymous. I do not publish supporters’ details or use them for marketing.
I use transaction details to process and settle the payment you request (Article 6(1)(b) GDPR). I keep legally required tax and accounting records to meet those obligations (Article 6(1)(c)). When you contact me, you provide your contact details and message. I use these to reply and resolve your enquiry. This and the establishment, exercise or defence of legal claims are my legitimate interests (Article 6(1)(f)). Where the law requires a response or a refund, I also process the necessary details to meet that obligation (Article 6(1)(c)).
Recipients and international transfers
My hosting, email and accounting providers receive the data needed for their respective services. Payments also involve Stripe, banks and providers of the payment method you choose. Public authorities may receive data when required by law. Stripe processes payments on my behalf and also acts as a separate controller for purposes such as preventing fraud and meeting its own legal obligations. Stripe’s privacy policy.
Providers of hosting, external resources and payments may use infrastructure outside the European Economic Area, including in the United States. A transfer may rely on a European Commission adequacy decision covering the recipient, or on standard contractual clauses with appropriate safeguards. Contact me to find out the basis of a particular transfer or obtain a copy of the safeguards. Hostinger’s terms and Stripe’s data transfer terms.
How long I keep data
Technical logs help detect faults and abuse. Routine log rotation depends on the hosting configuration. If a record is needed to investigate an incident, I keep it until the matter is closed, and longer only as required by law or for legal claims. I keep correspondence and payment or refund records until the enquiry or settlement is complete. Records needed for claims are kept until the limitation period expires or the proceedings are finally resolved. I keep tax records until the tax liability is time-barred, generally five years from the end of the year in which the tax was due. Language and checklist preferences remain in your browser until you change them or clear the site’s data.
Your rights
You may request access to your data and a copy, rectification, erasure or restriction under the conditions set out in the GDPR. The right to portability applies to data you provided and that is processed automatically under a contract or with consent. I normally respond within one month. You can complain to the Polish data protection authority (UODO) or the competent authority in the EU country where you usually live, work or where you believe an infringement occurred. I do not make decisions about you based solely on automated processing that have legal or similarly significant effects.
Your right to object
You can object at any time, on grounds relating to your particular situation, to processing based on my legitimate interests. I will stop unless I demonstrate compelling legitimate grounds that override your interests, rights and freedoms, or grounds for the establishment, exercise or defence of legal claims. Email work@mmucha.eu.
Who runs the sites and how to reach me
I am Marek Mucha, a sole trader operating as Marek Mucha IT Infra Services. My Polish tax identification number (NIP) is 7343312458.
My postal address is ul. Bulwarowa 31A/50, 31-751 Kraków, Poland. For questions about the sites, payments or privacy, email work@mmucha.eu.