Category Archives: Astronomy News

Astronomy News, REMOTE SENSORS

Very long range sensors detect…

  • A wrinkle in time: Gravity Waves prove Einstein right!
  • Water on Pluto
  • The sky this week-naked eye observing
  • Blast from black hole in a galaxy far, far away
  • Antarctic fungi survive martian conditions on ISS

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BHsim-600Gravity Waves Detected:  LIGO scientists have announced the direct detection of gravitational waves, a discovery that won’t just open a new window on the cosmos — it’ll smash the door wide open. Read more in Sky and Telescope, lots of pictures, graphs, diagrams….Also read more from Astronomy Magazine, though I found the format of the page rather strange.

Water on Pluto: Data from NASA’s New Horizons spacecraft point to more prevalent water ice on Pluto’s surface than previously thought.  Read More from Astronomy Magazine

The sky this week:  Check out the winter constellations, most of the observations mentioned in this article are visible to the naked eye. The winter hexagon is easily picked, even in light polluted skies of Montreal.  From Sky and Tel.  Printable star chart for February can be found here.

Blast from black hole in a galaxy far, far away:  The Pictor A Galaxy contains a supermassive black hole at its center, and a huge amount of gravitational energy is released as material swirls toward the event horizon. From Astronomy Magazine, read more.

Antarctic fungi survive martian conditions on ISS: Antarctica’s McMurdo Dry Valleys are the most Mars-like place on Earth. They make up one of the driest and most hostile environments on our planet, where strong winds scour away even snow and ice.  Read about ISS experiment.

Astronomy News

Very Long Range Sensors: Astronomy

 

Robot looks up

  • Increasing Chance of Solar flares
  • Intensifying Cosmic Rays
  • Edge of Space Thanks
  • The 5 planets in pre-dawn sky
  • Hunting for Exoplanets at Proxima Centauri

     

From http://spaceweather.com/

INCREASING CHANCE OF FLARES: NOAA forecasters have boosted the odds of an M-class flare today to 25%. The probable source would be sunspot AR2488, which has developed an unstable ‘beta-gamma’ magnetic field with pent-up energy for strong explosions. Any M-flares today could produce minor shortwave radio blackouts.

INTENSIFYING COSMIC RAYS: For the past year, neutron monitors around the Arctic Circle have sensed an increasing intensity of cosmic rays. Polar latitudes are a good place to make such measurements, because Earth’s magnetic field funnels and concentrates cosmic radiation there. Turns out, Earth’s poles aren’t the only place cosmic rays are intensifying. Spaceweather.com and the students of Earth to Sky Calculus have been launching helium balloons to the stratosphere to measure radiation, and they find the same trend over California. Read more: http://spaceweather.com/

HEY, THANKS! The cosmic ray research of Earth to Sky Calculus is 100% crowd-funded. The latest flight on Jan. 24th was sponsored by ABC affiliate KOMO TV of Seattle, Washington. KOMO’s donation of $500 paid for all the supplies necessary to get the high-altitude balloon off the ground. To say “thanks”, we flew their logo to the edge of space.

THE GREAT NAKED-EYE PLANET SHOW: The mainstream media is buzzing with news about astronomy: From now until Feb. 20th, anyone who wakes up before sunrise can see Mercury, Venus, Mars, Saturn and Jupiter all at once, no telescope required. These are the five brightest planets, and they are a beautiful sight lined up from east to west in the predawn sky. Click for observing chart.

From Sky and Telescope:

Hunting for Planets Around Proxima Centauri

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The Pale Red Dot Initiative has begun its search for exoplanets orbiting the nearest star to Earth besides the Sun. – See more

Astronomy News

Long Range Sensors: Astronomy

  • CERN discovery: Faster than the speed of light?
  • Signs of second largest black hole in the Milky Way
  • Planet 9 ?
  • In a Galaxy far, far away, a black hole is eating it live

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  • CERN discovery:  Faster than the speed of light? “It is a tiny difference,” said Ereditato, who also works at Berne University in Switzerland, “but conceptually it is incredibly important. The finding is so startling that, for the moment, everybody should be very prudent.”  Read More.
  • Signs of second largest black hole in the Milky Way:  Astronomers using the Nobeyama 45-meter radio telescope have detected signs of an invisible black hole with a mass of 100,000 times the mass of the Sun around the center of the Milky Way. The team assumes that this possible “intermediate mass” black hole is a key to understanding the birth of the supermassive black holes located in the centers of galaxies. Read More
  • Planet 9: Does a massive, extremely distant planet orbit the Sun? A new analysis of distant solar-system orbits argues that it should exist.  Read More
  • Most luminous galaxy is ripping itself apart: …it has the highest power output of any galaxy in the universe, and it would appear to shine the brightest if all galaxies were at the same distance from us. The new study reveals that this galaxy is also expelling tremendously turbulent gas — a phenomenon never seen before in an object of this kind…This galaxy is an example of a rare class of objects called Hot, Dust-Obscured Galaxies or Hot DOGs, which are powerful galaxies with supermassive black holes in their centers. Only 1 out of every 3,000 galaxies that WISE has observed is in this category.

Astronomy News

Looking up! Observing highlights Jan 22-30

From Sky and Telescope, the observing highlights for this coming week. If the sky is clear on Sunday evening, after the club supper, we’ll see if we can pick out the winter hexagon.  Google for Winter Hexagon to see several images, some with all the stars and constellations labelled.

Start with brilliant Sirius at its bottom. Going clockwise from there, march through Procyon, Pollux and Castor, Capella high up, Aldebaran over to Capella’s right, down to Rigel in Orion’s foot, and back to Sirius.

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In the meantime, you will find the sky charts and diagrams on this page really useful and interesting. There are 5 planets visible in the pre-dawn sky, a full moon on the 23rd (good time to see the rays from Tycho, binoculars will suffice) and on the 27th, Jupiter is just above the moon.

Astronomy News

Ninth Planet found??

From this morning’s Montreal Gazette:

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ninth

Astronomy News

Comet approaching, CME sideswiping Earth

From: http://spaceweather.com
“COMET CATALINA (C/2013 US10) Robot looks upis making its closest approach to Earth, only 67 million miles away. The beautiful green comet is only barely visible to the naked eye, but it is an easy target for backyard telescopes and digital cameras as it passes through the handle of the Big Dipper.

This is Comet Catalina’s first visit to the inner solar system–and its last. The comet’s close encounter with the sun in mid-November has placed it on a slingshot trajectory toward interstellar space. Enjoy it now. Once it recedes from Earth, we may never see it again
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Visit Spaceweather.com for photos and finder charts.

MINOR STORM WARNING: NOAA forecasters say there is a 45% chance of minor geomagnetic storms on Jan. 19th when a CME is expected to sideswipe Earth’s magnetic field. Aurora alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).”

Astronomy News

NASA suspends InSight mission to Mars

Unable to fix a leak with the mission’s main science instrument in time to make the 2016 launch window, NASA must wait two years to try again.

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“The JPL and CNES teams and their partners have made a heroic effort to prepare the InSight instrument, but have run out of time given the celestial mechanics of a launch to Mars,” said JPL Director Charles Elachi. “It is more important to do it right than take an unacceptable risk.”
Read more from the Astronomy website.
Read more from Sky and Telescope.
Or if you are really, really into Mars missions, pop over to the NASA site.

Astronomy News

BIG SUNSPOT ERUPTS

From http://spaceweather.com/

After several days of pent-up quiet, big sunspot AR2473 erupted on Dec. 28th (12:49 UT), producing a slow but powerful M1.9-class solar flare. NASA’s Solar Dynamics Observatory recorded the blast’s extreme ultraviolet glow:

Sun
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For more than an hour, UV radiation from the flare bathed the top of Earth’s atmosphere, ionizing atoms and molecules. This, in turn, disrupted the normal propagation of shortwave radio signals on the dayside of our planet. A NOAA blackout map shows the affected area. Ham radio operators, mariners and aviators in South America, Africa and the south Atlantic Ocean may have noticed fades and blackouts of transmissions below 20 MHz.

The slow explosion also produced a coronal mass ejection (CME). Images from the Solar and Heliospheric Obseratory (SOHO) show a ragged, full-halo CME heading almost directly toward Earth.

The storm cloud will likely reach our planet on Dec. 31st, possibly triggering the first geomagnetic storm of the New Year. NOAA analysts are modelling this CME now; stay tuned for refined forecasts later today when they release their storm track.

Sunspot AR2374 has an unstable ‘beta-gamma’ magnetic field that could explode again in the hours ahead. NOAA forecasters estimate a 55% chance of additional M-class flares and a 10% chance of X-flares on Dec. 28th.

Astronomy News

Looking up!

Robot looks upNew findings from New Horizons shape understanding of Pluto and its moons

Among the highlights of a recent meeting are insights into Pluto’s geology and composition as well as new details about the unexpected haze in Pluto’s atmosphere and its interaction with the solar wind.  Read more, see fabulous montage of images on Astronomy Magazine’s website.

Cassini closes in on Enceladus one last time
NASA’s Saturn-orbiting Cassini spacecraft makes its final close flyby of the ocean-bearing moon Enceladus on December 19.

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enceladus_final
A thrilling chapter in the exploration of the solar system will soon conclude, as NASA’s Saturn-orbiting Cassini spacecraft makes its final close flyby of the ocean-bearing moon Enceladus. Cassini is scheduled to fly past Enceladus at a distance of 3,106 miles (4,999 kilometers) on Saturday, Dec. 19, at 9:49 a.m. PST (12:49 p.m. EST).

Although the spacecraft will continue to observe Enceladus during the remainder of its mission (through September 2017), it will be from much greater distances — at closest, more than four times farther away than the Dec. 19 encounter.

The upcoming flyby will focus on measuring how much heat is coming through the ice from the moon’s interior — an important consideration for understanding what is driving the plume of gas and icy particles that sprays continuously from an ocean below the surface.  Read more from the Astronomy website.

Astronomy News, Montreal Area Event / Convention

RASC Montreal Centre, free public event

Weather permitting, this should be a good showing of the Geminids.  There will be no moon in the sky!  — Cathy

This coming Sunday, Dec. 13th the Montreal Centre will be hosting an evening to the Geminids Meteor Shower.

Date: Sunday, December 13th (Rain/Cloud Date for Observing Only: Monday Dec. 14th)
Time: 8PM
Place: Conservation Centre, Morgan Arboretum, Ste-Anne-de-Belelvue

We will have a short presentation before heading outdoors to enjoy the BIG SHOW! (Sunday only)
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Bring a chair, warm blankets, parkas, etc… Coffee will be available.

This is a free public event, however donations are appreciated to help present these public outreach events.

Hoping for clear skies,

Morrie, President
RASC Montreal Centre