Gaia@home: Difference between revisions
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{{Infobox software | {{Infobox software | ||
| name = Gaia@home | | name = Gaia@home | ||
| logo = [email protected] | | logo = [email protected] | ||
| screenshot = | |||
| screenshot = | | caption = | ||
| caption = | |||
| status = Active | | status = Active | ||
| category = Astronomy | | category = Astronomy | ||
| compute = CPU | | compute = CPU | ||
| dependencies = | | dependencies = BOINC | ||
| author = Astronomical Observatory Institute, Faculty of Physics, Adam Mickiewicz University | | author = Astronomical Observatory Institute, Faculty of Physics, Adam Mickiewicz University | ||
| developer = Gaia@home project team | | developer = Gaia@home project team | ||
| released | | released = {{Start date and age|2019|08|21}} | ||
| completed | | completed = No | ||
| discontinued | | discontinued = | ||
| | | programming language = C, C++ | ||
| website = | | operating system = Linux, Windows, macOS | ||
| stats as of = {{Start date and age|2026|05|19}} | |||
| average performance = 6653.65 GigaFLOPS | |||
| active users = 199 | |||
| total users = 631 | |||
| active hosts = 579 | |||
| total hosts = 3609 | |||
| rac = | |||
| credit per day = | |||
| gpu performance = | |||
| cpu performance = | |||
| website = {{URL|https://gaiaathome.eu/}} | |||
| license = Free software | |||
}} | }} | ||
[http://gaiaathome.eu/gaiaathome/ '''''Gaia@home'''''] is a '''''[[wikipedia:Volunteer computing|volunteer distributed computing]]''''' project based on the | [http://gaiaathome.eu/gaiaathome/ '''''Gaia@home'''''] is a '''''[[wikipedia:Volunteer computing|volunteer distributed computing]]''''' project based on the BOINC middleware platform. The project was created by researchers from the Astronomical Observatory Institute at [[wikipedia:Adam Mickiewicz University in Poznań|Adam Mickiewicz University]] in Poland to support astronomical research using data from the [[wikipedia:Gaia (spacecraft)|Gaia]] space observatory mission operated by the [[wikipedia:European Space Agency|European Space Agency]] (ESA).<ref>{{cite web |url=http://gaiaathome.eu/gaiaathome/ |title=Gaia@home |publisher=Gaia@home |access-date=2026-05-18}}</ref> | ||
The project distributes computationally intensive astronomical calculations to volunteers around the world using the BOINC infrastructure. Gaia@home focuses primarily on celestial mechanics, stellar dynamics, and the study of long-period comets and stellar encounters with the Solar System.<ref>{{cite web |url=https://boinc.berkeley.edu/projects.php |title=BOINC Projects List |publisher=University of California, Berkeley |access-date=2026-05-18}}</ref> | The project distributes computationally intensive astronomical calculations to volunteers around the world using the BOINC infrastructure. Gaia@home focuses primarily on celestial mechanics, stellar dynamics, and the study of long-period comets and stellar encounters with the Solar System.<ref>{{cite web |url=https://boinc.berkeley.edu/projects.php |title=BOINC Projects List |publisher=University of California, Berkeley |access-date=2026-05-18}}</ref> | ||
== History == | == History == | ||
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== Scientific background == | == Scientific background == | ||
[[File:Gaia rotation.jpg|thumb|300x300px|The [[wikipedia:Gaia (spacecraft)|Gaia]] spacecraft operated by the European Space Agency collects astrometric data used by Gaia@home researchers.]] | |||
The [[wikipedia:Gaia (spacecraft)|Gaia]] mission is one of the most important astrometric missions ever conducted. Its measurements allow astronomers to determine precise positions, distances, and motions for stars throughout the Milky Way galaxy.<ref>{{cite web |url=https://www.esa.int/Science_Exploration/Space_Science/Gaia_overview |title=Gaia Overview |publisher=European Space Agency |access-date=2026-05-18}}</ref> | The [[wikipedia:Gaia (spacecraft)|Gaia]] mission is one of the most important astrometric missions ever conducted. Its measurements allow astronomers to determine precise positions, distances, and motions for stars throughout the Milky Way galaxy.<ref>{{cite web |url=https://www.esa.int/Science_Exploration/Space_Science/Gaia_overview |title=Gaia Overview |publisher=European Space Agency |access-date=2026-05-18}}</ref> | ||
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== Subprojects == | == Subprojects == | ||
[[File:Gaia2 1.png|thumb|The cloud of 13517 clones of the star Gliese 710 drawn according to the covariance matrix taken from the Gaia DR2 catalogue. This cloud is projected onto the maximum scatter plane X'Y', coordinates are expressed in parsecs. The red dot is the Sun position, the green dot is the star nominal position during an encounter and the orange cross is the centroid of the clone cloud. The blue dotted circle shows the approximate extend of the cometary Oort cloud. This star parameters are known with a good precision so the cloud of clones is rather compact..]] | |||
=== Long period comets === | === Long period comets === | ||
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Orbital changes of C/2002 T7 projected on its original orbit plane that described by five snapshots in CODE catalogue. Red line depicts the past motion of this comet while the blue line depicts its future evolution. Five epochs (snapshots) when orbital elements are recorded are marked: 1 - osculating heliocentric orbit near the centre of the observational interval (typically near the perihelion); 2 - original barycentric orbit recorded in the past at 250 au from the Sun; 3 - future barycentric orbit recorded in the future at 250 au from the Sun; 4 - previous orbit, recorded at the previous perihelion; 5 - next orbit, in this case recorded at the escape border at 120 000 au from the Sun, but for many other comets recorded in the next perihelion. | Orbital changes of C/2002 T7 projected on its original orbit plane that described by five snapshots in CODE catalogue. Red line depicts the past motion of this comet while the blue line depicts its future evolution. Five epochs (snapshots) when orbital elements are recorded are marked: 1 - osculating heliocentric orbit near the centre of the observational interval (typically near the perihelion); 2 - original barycentric orbit recorded in the past at 250 au from the Sun; 3 - future barycentric orbit recorded in the future at 250 au from the Sun; 4 - previous orbit, recorded at the previous perihelion; 5 - next orbit, in this case recorded at the escape border at 120 000 au from the Sun, but for many other comets recorded in the next perihelion. | ||
=== Stellar close approaches === | === Stellar close approaches === | ||
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The Gaia@home infrastructure has also been discussed within the BOINC community as a framework for additional astronomical and astrodynamics applications using Gaia datasets. The flexible BOINC architecture allows researchers to add new computational tasks as additional Gaia catalogues become available.<ref>{{cite web |url=https://boinc.berkeley.edu/ |title=BOINC |publisher=University of California, Berkeley |access-date=2026-05-18}}</ref> | The Gaia@home infrastructure has also been discussed within the BOINC community as a framework for additional astronomical and astrodynamics applications using Gaia datasets. The flexible BOINC architecture allows researchers to add new computational tasks as additional Gaia catalogues become available.<ref>{{cite web |url=https://boinc.berkeley.edu/ |title=BOINC |publisher=University of California, Berkeley |access-date=2026-05-18}}</ref> | ||
[[File:Gaia2 2.png|thumb|The cloud of 11327 clones of the star ALS 9243 drawn according to the covariance matrix taken from the Gaia DR2 catalogue. This cloud is projected onto the maximum scatter plane X'Y', coordinates are expressed in parsecs. The red dot is the Sun position, the green dot is the star nominal position during an encounter and the orange cross is the centroid of the clone cloud. The blue dotted circle shows the approximate extend of the cometary Oort cloud. This star parameters have the poor accuracy but the star must be studied in detail since it might have a large mass, even grater than 10 solar masses. Gliese 710 will pass the Sun even closer.]] | |||
== Software and infrastructure == | == Software and infrastructure == | ||
Gaia@home uses the [[BOINC]] middleware system developed at the [[wikipedia:University of California, Berkeley|University of California, Berkeley]]. BOINC enables volunteers to contribute unused CPU resources from personal computers to scientific research projects.<ref>{{cite journal | Gaia@home uses the [[Wikipedia:BOINC|BOINC]] middleware system developed at the [[wikipedia:University of California, Berkeley|University of California, Berkeley]]. BOINC enables volunteers to contribute unused CPU resources from personal computers to scientific research projects.<ref>{{cite journal | ||
|last1=Anderson | |last1=Anderson | ||
|first1=David P. | |first1=David P. | ||
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Volunteer participants attach the Gaia@home project to their BOINC clients and automatically download work units for processing. | Volunteer participants attach the Gaia@home project to their BOINC clients and automatically download work units for processing. | ||
== Scientific publications == | == Scientific publications == | ||
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== See also == | == See also == | ||
* [[wikipedia:BOINC]] | * [[wikipedia:BOINC|BOINC]] | ||
* [[wikipedia:Gaia (spacecraft)|Gaia spacecraft]] | * [[wikipedia:Gaia (spacecraft)|Gaia spacecraft]] | ||
* [[wikipedia:Oort cloud|Oort cloud]] | * [[wikipedia:Oort cloud|Oort cloud]] | ||