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blueprint

DIY: Astronomy Projects & Guidance

8 Backyard Observatory Mistakes to Avoid

Here are a few potential problems that you might not see on your blueprints.

Choosing Your Astronomy Equipment

Binocular Basics: Glossary of Binocular Terms

Exit pupils. Eye relief. Image stabilization. What matters most for astronomers? Our expert explains it all.

outstanding collimation aid

DIY: Astronomy Projects & Guidance

Collimation Tools

Three tools are commonly used to collimate Newtonian reflectors.

Resources and Education

Freeware from Sky & Telescope

Handy — and free — observing and optics utilities.

Using Software

Resources and Education

Astronomy Software: Public Domain, Freeware, and Shareware

Dozens of free or inexpensive computer programs can aid your observing or simply allow you to explore the sky.

Resources and Education

BASICally Speaking

Suzanne Rich From a casual exploration of the new-upload libraries of online services, and seeing recent freeware and shareware offerings, there is no question that plenty of programmers are still hacking away in their dens and basements. Furthermore, the creators of these utilities are more imaginative than those nearly two…

Astrophotography: Tips & Techniques

Photographing the Transit of Venus

Here's how to capture your own keepsake portrait of this upcoming rare, historic, and first-in-a-lifetime event.

Pro-Am Collaboration

Oops! No Data!

It seems you submitted the Nearby-Supernova AstroAlert Report Form without filling in any of the data fields. Please click your browser's "Back" button, or follow the link below, and try again. Thanks for your interest in Sky & Telescope's AstroAlert!

Pro-Am Collaboration

Thank You!

Thank you for submitting your observing report to Sky & Telescope's AstroAlert service. If we have any questions about your data, we'll contact you by e-mail. Please note that at present we are interested only in reports following up a nearby-supernova alert. Observations in response to other types of alerts…

Pro-Am Collaboration

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It seems that you forgot to supply your old e-mail address, your new one, or both. Please click the "Back" button on your browser, or click the "Change E-mail Address" link below, and try again. Thank you! AstroAlert Main Page | Change E-mail Address

Pro-Am Collaboration

Oops! No Lists Selected

It seems you forgot to check any boxes on the AstroAlert change-of-address form. Please click the "Back" button on your browser, or click the "Change E-mail Address" link below, and try again. Thank you! AstroAlert Main Page | Change E-mail Address

Pro-Am Collaboration

Thanks for Checking!

Please remember to check your e-mail for a reply from our Majordomo listserv software. It will show you the AstroAlert lists to which you currently subscribe. AstroAlert Main Page | Subscribe | Unsubscribe

Pro-Am Collaboration

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Pro-Am Collaboration

Oops! Missing or Invalid E-mail Address

It seems that you forgot to supply an e-mail address or that the address you supplied is invalid. Please click the "Back" button on your browser, or click the "Unsubscribe from AstroAlert" link below, and try again. Thank you! AstroAlert Main Page | Unsubscribe from AstroAlert

Pro-Am Collaboration

Oops! Missing or Invalid E-mail Address

It seems that you forgot to supply an e-mail address or that the address you supplied is invalid. Please click the "Back" button on your browser, or click the "Subscribe to AstroAlert" link below, and try again. Thank you! AstroAlert Main Page | Subscribe to AstroAlert

Pro-Am Collaboration

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Pro-Am Collaboration

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It seems you forgot to check any boxes on the AstroAlert unsubscribe form. Please click the "Back" button on your browser, or click the "Unsubscribe from AstroAlert" link below, and try again. Thank you! Unsubscribe from AstroAlert

Pro-Am Collaboration

Results of Nearby-Supernova AstroAlert Test

Our February 2003 AstroAlert test went very well. Here we report on what we learned, thanks to the enthusiasm and dedication of the test's participants.

Pro-Am Collaboration

TEST - Possible Galactic Supernova!

In February 2003, Sky & Telescope and the SuperNova Early Warning System (SNEWS) conducted a test of the AstroAlert system. Here's what it looked like.

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