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






Airborne On ANN

Airborne 10.17.16

Airborne 10.18.16

Airborne 10.19.16

Airborne 10.20.16

Airborne 10.21.16

Airborne Hi-Def On YouTube

Airborne 10.17.16

Airborne 10.18.16

Airborne 10.19.16

Airborne 10.20.16

Airborne 10.21.16

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.]



More News

Airborne 10.21.16: NIMBYs Out Of Control, SMO Evictions On Hold, New Race Class

Also: CVR/FDR Expansion, Focusing On Santa Monica, NASAO Boss, GE9X Engine, 1000th H-60M, Verizon Drones, New LAS ATC A Transportation Safety Board of Canada team is currently inve>[...]

Aero-News: Quote of the Day (10.23.16)

Aero-News Quote of the Day "Think of this transition as changing an engine on a plane when it's inflight. Rolling out STARS in our nation's busiest airspaces, without disrupting ai>[...]

ANN's Daily Aero-Linx (10.23.16)

Aero Linx: The Society of United States Air Force Flight Surgeons (SoUSAFFS) SoUSAFFS was established in 1960 to more specifically support the USAF FS than AsMA at large could. Sin>[...]

ANN's Daily Aero-Term (10.23.16): Final Approach Point

Final Approach Point The point, applicable only to a nonprecision approach with no depicted FAF (such as an on airport VOR), where the aircraft is established inbound on the final >[...]

ANN FAQ: Q&A 101

A Few Questions AND Answers To Help You Get MORE Out of ANN!>[...]

blog comments powered by Disqus





© 2007 - 2016 Web Development & Design by Pauli Systems, LC