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

Most Recent Daily Airborne

Airborne On ANN

Airborne On YouTube/Hi-Def/Mac Friendly

Monday

Airborne 01.26.15

Airborne 01.26.15

Tuesday

Airborne 01.27.15

Airborne 01.27.15

Wednesday

Airborne 01.28.15

Airborne 01.28.15

Thursday

Airborne 01.22.15

Airborne 01.22.15

Friday

Airborne 01.23.15

Airborne 01.23.15

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 01.27.15: USCG Rescue!, Two Eagles Over Pacific, UAV v White House

Also: Hartzell/Red Bull, GA Coalition, Aero-Calendar, Commemorative Air Force, Sarah Brightman To ISS, Hot Air Balloon Endurance Record The pilot of a single engine Cirrus SR22 air>[...]

Pipistrel Updates WattsUp Program

Gives Inside-The-Cockpit Look At The Prototype Electric Trainer Pipistrel on Monday released a video showing an inside-the-cockpit view of their new WattsUp electric trainer ... a >[...]

AD: Airbus Airplanes

AD NUMBER: 2014-26-08 PRODUCT: All Airbus Model A330-200, -200F, and -300 series airplanes.>[...]

ANN's Daily Aero-Linx (01.28.15)

The Google Lunar XPRIZE The Google Lunar XPRIZE consists of $30 million in prizes designed to inspire pioneers to do robotic space transport on a budget. Teams from around the worl>[...]

ANN's Daily Aero-Term (01.28.15): National Route Program (NRP)

A set of rules and procedures designed to increase the flexibility of user flight planning within published guidelines.>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2015 Web Development & Design by Pauli Systems, LC