European satellite data will make 3D galaxy map possible

European satellite data will make 3D galaxy map possible

The data sent by the Gaia satellite of the European Space Agency (ESA) on the position, distances, and brightness of 1,7 billion stars helped the scientists create the largest Milky Way sky map.

As for UNIGE's specific role, this centres on the concept of "variability": studying data from over a half-million of the stars sent back by Gaia, the Swiss researchers will classify changes in the light emitted by the stars, as well as the shape of the light's trajectory.

The €750 ($920) million Gaia satellite's journey started in December 2013, and its first data release, which was based on just one year of observations, was published in 2016. The ESA plans more releases and expects to issue a final star catalog in the 2020s.

The star catalog comes from data collected by the ESA's Gaia satellite and it includes a mind-blowing 1.7 billion stars, most of which are measured with precision as to their positions and motions. "For some of the brightest stars in the survey, the level of precision equates to Earth-bound observers being able to spot a euro coin lying on the surface of the Moon", says the ESA.

Amazon starts delivering packages to auto boots
For its part, the Amazon Key in-car delivery service is an app-based method that utilizes a similar concept as the in-home method. Packages will be placed in cars parked in publicly accessible areas like a customer's home or workplace, and then secured.

Armed with these far more accurate measurements, astronomers can now differentiate between the parallax of stars - the apparent shift in the sky caused by Earth's yearly orbit around the sun - from their true movements relative to the galactic center. But at that time the map only had the brightness and location information of those stars.

That's not all. Gaia also observes objects in our Solar System, like the positions of more than 14,000 known asteroids. It covers stars in our home Milky Way Galaxy and beyond.

To place objects within our galaxy in a consistent frame of reference, Gaia peers into the distant universe at other galaxies, which do not appear to move across the sky because they are so far away. An even larger asteroid sample will be compiled in Gaia's future releases. On 25 April it released its second batch of data.

Over 450 scientists and engineers work on the Gaia project.

Related News:



Most liked

Mulvaney Tells Lobbyists to Pay Up to Diminish His CFPB
However, the budget director did claim he talked to his constituents regardless of the fact they had paid or not. No, no, no, you give Mick Mulvaney a hot mic at the ABA conference and he suddenly turns into Cardi B.

Sinclair Selling Off Stations To Land Tribune
Sinclair didn't list a potential sale of WPIX, the NY station that it earlier proposed divesting to satisfy regulators. The public will have a right to comment before the proposed deal is approved by the FCC.

Kimberly-Clark Corporation (KMB) Sets 12-Month Low at $100.03
The Fiduciary Financial Services Of The Southwest Inc holds 12,358 shares with $1.49 million value, down from 16,235 last quarter. Net income attributable to shareholders fell to $93 million, or 26 cents per share, from $563 million, or $1.57 per share.

Why I ordered withdrawal of $462m without NASS approval - President Buhari
This was paid directly to the treasury of the United States Government". The Pentagon previous year August notified the U.S.

Doctors found a "twisted" form of DNA in cells
In this case, the antibody was engineered so that it would attach itself to i-motifs but not to any other form of DNA. They also appear more in promoter regions , which are areas of DNA that control whether genes are switched on or off.

Ahead of summit, Pope Francis urges Koreas to have 'courage' for peace
Moon said the decision raised the possibility of making the inter-Korean and DPRK-U.S. summits a success. The 4-kilometer-wide DMZ separates the two Koreas nearly at the middle of the Korean Peninsula.

Credit Suisse Starts Last Year of Revamp With Rise in Profit
Credit Suisse said it had planned 2018 to be a year of acceleration in performance in its 12-quarter restructuring program. The group's wealth management business posted revenues of CHF1.4bn, up from CHF1.2bn, and rising profits.

Matt Kenseth returns to the NASCAR Cup Series with Roush-Fenway Racing
Kenseth's first outing in the No. 6 is forecasted for May 12 at Kansas Speedway , a track where he's won twice in his career. Kenseth rounded out the last five seasons driving the No. 20 Toyota for Joe Gibbs Racing , adding 15 of his 39 career win.

Windrush generation to get United Kingdom citizenship papers free
Rudd faced calls to resign and to stop acting as May's "human shield" over immigration. Officials are implementing regulations in the way she intended them to be implemented.

In Indonesia, a massive fire occurred at an oil well
Sutopo said the 250-meter (820-foot) -deep well was gushing when it ignited and many people were nearby trying to collect the oil. The fire was caused by an oil spill, that also set at least three houses ablaze, according to the UK's Daily Star.

Watch Port Authority Commissioner Telling Cops to 'Shut the F
This is the basis of the tough, systematic integrity reforms the Port Authority has implemented over the past year. Police Officer: "You may take your daughter now". "You may not tell me when to take my child", Turner said.

COSATU won't join in tomorrow's planned national strike
This was confirmed by SA Municipal Workers' Union spokesman Papikie Mohale, who said: "Work will continue as normal". The government says it held months of negotiations with unions and employers before the minimum wage was introduced.

Police investigating after pit bull attacks woman on NY train
Commuters declared that dog owner's pitbull refused to let go of woman's shoe. "Call the police", another one begs. The dog latched onto her". "What's happening in this video is disturbing and a clear violation of our rules".

Italian-Pakistani woman killed for honour in Pakistan
It is to be mentioned here that Sana Cheema was working as a driving instructor in Italy from where she was called to Pakistan. The trial in Shahid's case is still underway but her father died previous year , leaving only her ex-husband in the docks now.

Instagram rolls out batch uploads to Stories
Instagram Stories is probably one of the most popular ways that people are telling their stories on social media right now. Android has got the update and the iOS version of Instagram will receive the same update during the next few weeks.