Title
Excursions In Astronomical Optics
Delivery time: 8-12 business days (International)
For Every Astronomical Topic That I Have Approached There Has Turned Out To Be A Broader Realm Of Possibilities Than Is Commonly Accepted Or Acknowledged. The Excursions Of This Book Are The Examples. They Mostly Depart From The Mainstream Of Conventional Wisdom To Offer A Wider Perspective With Opportunities For Further Research. While My Intent Is To Supplement That Mainstream, The Effect May Appear To Dismiss Rather Than To Reconsider Accepted Tenets. Ample Praise And Credit For Those Accomplishments Are Already Available In Textbooks. Readers May Very Well Disagree With Some Of The Notions Presented In These Excursions, But I Hope That They Will Pause Long Enough To Evaluate The Scientific Basis For Any Disagreement. For The Most Part, These Excursions Remain Incomplete And Unfulfilled, Yet They Contain Many Ideas That Are Not Available Elsewhere. Whether These Ideas Are Per Ceived As A Collection Of Unproven Claims Or As A Storehouse Of Fresh Opportunities Will Depend Entirely On The Attitude Of The Reader. The Excursions Do Cover A Rather Wide Span Of Disciplines, And That May Lead To An Unfocused Overall Impression. My Hope Is Thereby To Attract A Broader Audience Than That Of A Single Discipline, And To Expose Them To Neighboring Disciplines. The Excursions All Do Have The Common Thread Of Optical Science Related To Astronomy.
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⚠️ WARNING (California Proposition 65):
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For more information, please visit www.P65Warnings.ca.gov.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.