search
Get Started
search
OAO-2 - Spacecraft
zoom_in Click to enlarge

OAO-2

description OAO-2 Overview

OAO-2 (Orbiting Astronomical Observatory 2), launched in December 1968, was NASA's first successful space-based ultraviolet observatory. The spacecraft carried multiple telescopes to observe the universe in ultraviolet wavelengths blocked by Earth's atmosphere. It provided critical early UV observations of stars, nebulae, and galaxies, proving the viability of extraterrestrial astronomy. The mission operated successfully for roughly four years, laying the groundwork for future orbital telescopes.

help OAO-2 FAQ

What was the primary scientific purpose of the OAO-2 satellite?

OAO-2, launched by NASA in 1968, was the first successful space-based ultraviolet telescope. It was designed to observe stars and nebulae in UV wavelengths that are normally blocked by Earth's atmosphere.

When was NASA's OAO-2 launched?

The satellite was successfully launched into orbit in December 1968. It was originally nicknamed Stargazer before receiving its official OAO-2 designation.

What were the major discoveries of the OAO-2 mission?

The satellite provided early ultraviolet observations of hundreds of stars and nebulae. It also discovered that comets are surrounded by huge clouds of hydrogen gas.

Was OAO-2 the first satellite in the Orbiting Astronomical Observatory program?

No, its predecessor, OAO-1, was launched earlier in 1966 but suffered a battery failure shortly after reaching orbit. OAO-2 was the first mission in the program to successfully conduct science.

Reviews & Comments

Write a Review

rate_review

Be the first to review

Share your thoughts with the community and help others make better decisions.

Save to your list

Save your favorites and follow how their scores change over time.

Save favorites
Track changes
Compare scores

Already have an account? Sign in

Compare Items

See how they stack up against each other

Comparing
VS
Select 1 more item to compare