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ServiAstro is the website for public outreach on astronomy of the Astronomy and Meteorology Department (DAM) of the University of Barcelona.

It offers information about the past and future astronomical events visible from Catalonia. Also about the most important ones, no matter the geographical visibility. In some especially outstanding cases, such as planetary transits or Solar and Lunar eclipses, ServiAstro offers live webcasts which can be enjoyed anytime, thanks to our permanent galleries.

Furthermore, ServiAstro publish the public outreach activities carried out by the (DAM). Visitors will find a compilation of astronomical ephemerides, tools for astronomical calculations, news, answers to frequently asked questions and links to lots of other websites about astronomy, organized in sections.

Lovejoy comet

mxim mxim

Lovejoy magnificent, 22 January 2015,
Comet Lovejoy is still on the way to the perihelion of its orbit, which will take place on 30 January. Although at this time is moving away from Earth, it continues being an object visible to the naked eye (magnitude around 4) due its high activity.

From an astronomical perspective these days we are living the most spectacular moments that the comet can offer. Moving from state of hibernation to a frenetic activity due to increased solar radiation. This activity is visible on its comma and on the tail. + info: Article "cometa Lovejoy" from Miquel Serra Ricart, IAC astrophysicist on the blog Va Lctea s/n.

Time-lapses of comet C/2014 Q2 (Lovejoy) observed on 2015 January 13-14-15 from Teide Observatory.





NameExoWorlds: An IAU World wide Contest to name Exoplanets and their Host Stars

mxim For the first time, in response to the public’s increased interest in being part of discoveries in astronomy, the International Astronomical Union (IAU) is organizing a worldwide contest to give popular names to selected exoplanets along with their host stars. The proposed names will be submitted by astronomy clubs and non-profit organisations interested in astronomy, and votes will be cast by the public from across the world through the web platform NameExoWorlds.
Spanish Blog

Picture of the day




mxim One second more in 2015, 21 January,
The International Earth Rotation and Reference System Service (IERS), announced that on June 30th will add a second to our clock time (UTC) to adjust it with the Solar Time (UT). This Time difference corresponds to the variability of the terrestrial rotation.
Monography about the Time mesurement

mxim Getting to know Rosetta's comet, 22 January,
Rosetta is revealing its host comet as having a remarkable array of surface features and with many processes contributing to its activity, painting a complex picture of its evolution.
Web about Rosetta on serviastro

mxim Asteroid to fly by Earth safely on January 26, 15 January,
An asteroid, designated 2004 BL86, will safely pass about three times the distance of Earth to the moon on January 26. From its reflected brightness, astronomers estimate that the asteroid is about a third of a mile (0.5 kilometers) in size. The flyby of 2004 BL86 will be the closest by any known space rock this large until asteroid 1999 AN10 flies past Earth in 2027.

mxim Where did all the stars go?, 7 January,
Some of the stars appear to be missing in this intriguing new ESO image. But the black gap in this glitteringly beautiful starfield is not really a gap, but rather a region of space clogged with gas and dust. This dark cloud is called LDN 483 — for Lynds Dark Nebula 483. Such clouds are the birthplaces of future stars.

mxim Chasms and cliffs on Mars, 7 January,
Although Mars is a very alien planet, some aspects of its geology are surprisingly familiar. This Mars Express image shows a snippet of a region of Mars filled with cliffs, trenches, faults, giant plateaus and volcanoes.

mxim NASA’s Kepler Marks 1,000th Exoplanet Discovery, Uncovers More Small Worlds in Habitable Zones, 6 January,
Of the more than 1,000 verified planets found by NASA's Kepler Space Telescope, eight are less than twice Earth-size and in their stars' habitable zone. All eight orbit stars cooler and smaller than our sun. The search continues for Earth-size habitable zone worlds around sun-like stars.

mxim NASA’s Kepler Marks 1,000th Exoplanet Discovery, Uncovers More Small Worlds in Habitable Zones, 5 January,
Astronomers have observed the largest X-ray flare ever detected from the supermassive black hole at the center of the Milky Way galaxy. This event, detected by NASA’s Chandra X-ray Observatory, raises questions about the behavior of this giant black hole and its surrounding environment.





Comet Lovejoy brightens, 28 December,
Comet Lovejoy (C/2014 Q2) has been a naked-eye object for the observers from the Southern Hemisphere. In recent days has been seen from southerly latitudes in the Northern Hemisphere. And soon, it’ll be high in Northern Hemisphere skies!

The path of the comet can be seen in the map


Physics Photo Contest International Year of light

The "Catalan Society of Physics", has announced the list of the 6 awarded images

mxim New Horizons wakes up on Pluto's doorstep, 7 December,
After a voyage of nearly nine years and three billion miles —the farthest any space mission has ever traveled to reach its primary target – NASA’s New Horizons spacecraft came out of hibernation on Dec. 6th for its long-awaited 2015 encounter with the Pluto system.


International Conference outreach Activities
Gaia Team from UB have organized outreach activities to secundary school students, and general public.

  • Guided visit to the exhibition" Mil milions d'ulls per a mil milions d'estrelles".On the ground floor of the Sciences courtyard of the Historical Building
  • Talk: "Gaia i l'odissea galctica". Paranimf of the Historical Building.
  • Date:2 December 2014
  • Hour: 18:00-19:30
The activities are part of the International Conference "The Milky Way unravelled by Gaia" that is going to be held in the UB Historic Building.
More deails: here

mxim Geminid Meteor Shower, 1 December,
Earth is entering a stream of gravelly debris from "rock comet" 3200 Phaethon, source of the annual Geminid meteor shower. On the night of Nov. 30-Dec. 1, NASA's network of all-sky cameras detected three Geminid fireballs over the USA (see the image). This specimen from the desert southwest was clearly visible despite the glare from the waxing gibbous Moon. Meteor sightings will increase in the nights ahead as Earth plunges deeper into the debris stream. Forecasters expect peak rates to occur on Dec. 13-14, when dark-sky observers in both hemispheres could see as many as 120 meteors per hour.


mxim Spooky Alignment of Quasars Across Billions of Light-years, 19 November,
New observations with ESO’s Very Large Telescope (VLT) in Chile have revealed alignments over the largest structures ever discovered in the Universe. A European research team has found that the rotation axes of the central supermassive black holes in a sample of quasars are parallel to each other over distances of billions of light-years. The team has also found that the rotation axes of these quasars tend to be aligned with the vast structures in the cosmic web in which they reside.

Rosetta continues into its full science phase , 21 November,
With the Philae lander’s mission complete, Rosetta will now continue its own extraordinary exploration, orbiting Comet 67P/Churymov–Gerasimenko during the coming year as the enigmatic body arcs ever closer to our Sun.

Rosetta's web on Serviastro

mxim Mars Spacecraft Reveal Comet Flyby Effects on Martian Atmosphere, 7 November,
Two NASA and one European spacecraft that obtained the first up-close observations of a comet flyby of Mars on Oct. 19, have gathered new information about the basic properties of the comet’s nucleus and directly detected the effects on the Martian atmosphere.

mxim Black hole gamma-ray lightning, 6 November,
The MAGIC telescopes at La Palma have recorded the fastest gamma-ray flares seen to date, produced in the vicinity of a super-massive black hole. The scientists explain this phenomenon by a mechanism similar to that producing lightning in a storm. This result, with an important Spanish contribution, is published today in Science.

mxim Revolutionary ALMA Image Reveals Planetary Genesis, 6 November,
This new image from ALMA, the Atacama Large Millimeter/submillimeter Array, reveals extraordinarily fine detail that has never been seen before in the planet-forming disc around a young star. These are the first observations that have used ALMA in its near-final configuration and the sharpest pictures ever made at submillimetre wavelengths. The new results are an enormous step forward in the observation of how protoplanetary discs develop and how planets form.

mxim NASA Rocket Experiment Finds the Universe Brighter Than We Thought, 6 November,
A NASA sounding rocket experiment has detected a surprising surplus of infrared light in the dark space between galaxies, a diffuse cosmic glow as bright as all known galaxies combined. The glow is thought to be from orphaned stars flung out of galaxies.

mxim VLTI Detects Exozodiacal Light, 3 November,
By using the full power of the Very Large Telescope Interferometer an international team of astronomers has discovered exozodiacal light close to the habitable zones around nine nearby stars. This light is starlight reflected from dust created as the result of collisions between asteroids, and the evaporation of comets. The presence of such large amounts of dust in the inner regions around some stars may pose an obstacle to the direct imaging of Earth-like planets in the future.