New Moon Discovered Around Neptune in Old Hubble Images
2013 07 16

By Nadia Drake | wired.com



Our blue and gassy outer planet Neptune hosted 13 known moons until today. Now, there are 14.

The new moon, known as S/2004 N1, is so small and faint that it escaped detection by NASA’s Voyager 2 spacecraft, which flew by Neptune in 1989.

Just 12 miles across, the moon orbits outside the planet’s ring system, carving a rut into space about 65,400 miles away from the ice giant. But S/2004 N1 is a little speed demon: It completes its 372,000-mile orbital journey in just 23 hours.

“This is a moon that never sits still long enough to get its picture taken,” said the SETI Institute’s ace moon-finder Mark Showalter, who discovered the moon while studying long-exposure, archival images taken by the Hubble Space Telescope. It’s one of a half-dozen moons Showalter has found, including Mab and Cupid around Uranus, Saturn’s shepherd moon Pan, and the two tiniest of Pluto’s moons, newly named Kerberos and Styx.

Does finding moons ever get boring? Nope. “It’s a rush,” Showalter said.

Showalter first spied something that could have been a new Neptunian moon on July 1. He’d been studying the planet’s rings, and thought to look a bit farther out. “There was this little dot sitting there,” he said. “It looked like it could be a moon.”

Because S/2004 N1 is so dim, Showalter needed some time to confirm the moon’s presence. After aligning and combining about 15 sets of Hubble images taken between 2004 and 2009, he determined that the dot was, in fact, a moon. Roughly 150 images helped him plot the satellite’s orbit. “You can’t see it in the individual images, but when you combine images, it turns up,” he said. “It turns up very consistently.”

Now, he says, he’d like to apply the same technique to long-exposure images of the other outer planets, and see if there might be more dim satellites playing hide-and-seek.

[...]

Read the full article at: www.wired.com






Related Articles


Latest News from our Front Page

VOTER FRAUD: Was the Scottish Independence Referendum Rigged to Fail?
2014 09 20
Was voter fraud committed during the Scottish Independence referendum? It has been confirmed that the names of 10 people were already crossed off a voter list prior them voting inside a polling station. According to reports, the Glasgow City Council confirmed that there were ten cases of suspected electoral fraud occurring at polling stations following the Scottish referendum vote on the 18th. ...
Scandinavians Split Over Syrian Influx
2014 09 20
This exemplifies the insanity of Scandinavia. The narrow victory of the left-leaning Social Democratic Party in Sweden’s elections last Sunday marked a broad shift in its politics. But a new coalition government is unlikely to reconsider one of the country’s most challenging policies: its response to the Syrian civil war. Sweden has taken an open-door approach to people fleeing the conflict, ...
The Israel lobby in United Kingdom - Who Runs Britain?
2014 09 20
Who runs British politics? Who in Britain supports all the wars the UK has been involved in? The Israel Lobby in the UK - Full Documentary By Peter Oborne from Dispatchees Links from Youtube: Zionist attack on western civilization Reed Douglas - The Controversery of Zion Source: youtube.com The cowardice at the heart of UK relationship with Israel Close friends and allies: Prime Minister David Cameron ...
Another Palestinian Mass Grave Discovered, Evidence of Massacre
2014 09 20
Another mass grave discovered, evidence of 1948 Judaic holocaust by bullets, knives and bludgeons against Palestinians. The Israeli military admits to have been surprised by the abilities of Palestinian resistance fighters during its recent war on the Gaza Strip. A top Israeli military official says he’s impressed by the training of Palestinian resistance fighters from Hamas and the Islamic Jihad groups. He ...
Russian Media to be owned by Russians
2014 09 20
Comment: Russian media by and for Russians? Wow, revolutionary! I guess they are stick of foreign oligarchs and zionist with dual citizenship. Duma seeks limits on foreign ownership of Russian media companies A group of opposition lawmakers have prepared a bill that orders Russian mass media companies to have at least 80 percent of their stock held by Russian investors. The bill is backed ...
More News »