There's More Around Uranus Than You Thought | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

AMA Drone Report

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday

Airborne-Thursday

Airborne-Friday

Airborne On ANN

ADR 01.23.17

Airborne 01.23.17

Airborne 01.24.17

Airborne 01.18.17

Airborne 01.19.17

Airborne 01.20.17

Airborne Hi-Def On YouTube

ADR 01.23.17

Airborne 01.23.17

Airborne 01.24.17

Airborne 01.18.17

Airborne 01.19.17

Airborne 01.20.17

Sun, Sep 28, 2003

There's More Around Uranus Than You Thought

Two More Moons Discovered by Hubble

Thanks to the Hubble's great eyes, we can now add two more moons to those known to be orbiting Uranus. The two most recently-discovered rocks, each just eight or ten miles in their major dimension (they're believed to be irregularly-shaped), can now join the ten 'official' moons discovered by Voyager in 1986, and the five we knew about before that.

Being able to see something that small, from a distance of about 1,700,000,000 miles away, attests to the Hubble's design and subsequent repairs.

The new satellites have cute names: S/2003 U 1 and S/2003 U 2; U1 is the bigger of the two. U1's orbit is between that of Puck and the big moon Miranda. It's a fast little fella, circling the big planet in just 22 hours and 9 minutes, at an altitude of 60,000 miles.

The smaller U2, with an orbit near Belinda's (46,400 miles up from the surface), also wastes no time -- its cycle is just under 15 hours.

The two tiny moons have dark surfaces -- with a reflectance equivalent to blacktop -- and were hard to detect. Their brightness is about one forty-millionth that of the parent planet's.

How many moons does Uranus have? There's five big ones, and 13 little ones... that we know about. The jury's still out on the 'final' number -- but Hubble is showing that even the tiniest rocks are becoming visible. [Saturn has 17 known moons; it's currently #2 in the count --ed.]

FMI: www.nasa.gov

Advertisement

More News

Airborne 01.23.17: PMA Approval Breakthrough, PBoR in Legal Ruling, R44 Cadet

Also: DJI Phantom 4, SpaceX Launch Vid, BasicMed AC, Rolls-Royce, Next F-35A Base, UAV Perched Ldg, K-MAX A proposed new compliance pathway for Parts Manufacturer Approval for manu>[...]

AMA Drone Report 01.23.17: AMA Expo West, Propel Star Wars Drones, Lily Folds

Also: Ready Made RC FPV Fest, ERAU Offering Drone Course, Second Drone Advisory Committee Meeting AMA Expo West was quite a transition for the ANN crew... who went from the insanit>[...]

Airborne 01.23.17: PMA Approval Breakthrough, PBoR in Legal Ruling, R44 Cadet

Also: DJI Phantom 4, SpaceX Launch Vid, BasicMed AC, Rolls-Royce, Next F-35A Base, UAV Perched Ldg, K-MAX A proposed new compliance pathway for Parts Manufacturer Approval for manu>[...]

Air Force COS Goldfein Addresses Priorities For The 21st Century

Outlines His Perspective For The Future Of American Air Power Air Force Chief of Staff Gen. David L. Goldfein outlined his perspective on the future of American airpower and how Ai>[...]

AeroSports Update: FAI World Glider Championship Results

The 34th FAI World Gliding Championships In Australia Ends On A High A hard two-week battle in Australian skies sees three new FAI Gliding World Champions win gold. Three new FAI G>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2017 Web Development & Design by Pauli Systems, LC