Building a backyard observatory 25 years ago usually meant one of two things: Buy a dome or do it yourself from scratch. A simple “roll-off roof ” observatory was also an alternative.

Next decision: type and size. I built a big roll-off roof observatory in the mid-’80s. No one helped me, and I made major mistakes. I put the roof on swiveling casters. Don’t do that.

Our hacker [arrow] has made their own observatory! This particular video ... Obviously the coolest thing about this building is that the roof can be moved, but those telescope mounts look pretty ...

Raritan Valley Community College in Branchburg held a ceremony May 3 to mark the official opening of its new 3M Observatory. The $400,000 facility, which is located next to the College’s ...

The comet -- officially catalogued as 2014 Q2, or Q2 for short -- was discovered last year by amateur astronomer Terry Lovejoy from his roll-off roof observatory in Birkdale, Queensland ...

The Observatory consists of three main buildings: a house, in which students and members of the public may gather, a structure with a roll-off roof (housing a 14-inch telescope) and a 5-meter dome ...

The college observatory uses a wide roll-off roof that can be pulled back to reveal the cosmos to the stationary telescopes stored inside. But that doesn’t do much good if the sky is cloudy.

The nonprofit organization, which already attracts stargazers from near and far with its Roll-Off-Roof Observatory in Tupper Lake, hopes to bring even more people to its property with the ...

the Grundy Observatory has no dome. It has a roll-off roof — one of the few such constructions in the country — that opens up the entire building and provides a wider view of the night sky.

Six or eight nights a month, weather permitting, the Chandlers open the roll-off roof of their observatory and focus 25- and 30-inch reflecting telescopes on whatever objects are on their current ...