25 February 2010

Jupiter Conjunction

Hubble Views New Dark Spot on Jupiter

From past few months the Giant planet had been our companion in the evening sky. We have observed the planet Jupiter, the moons, the bands on the planet, the great red spot, mutual eclipse of the Galilean moons, followed the shadows of the moons on the surface of planet.

During the Galilean Nights, conducted world wide last October, we showed the planet to thousands, who got the glimpse of the giant planet for the first time. In most of the outreach programs, Jupiter was the 'star' attraction.

Jupiter became difficult to observe in the late January, as the planet was very close to the Sun. When we say, the planet is close to Sun, we know that the planet is getting behind the Sun. In other words, the Earth, the Sun and the planet Jupiter forms a straight line. This is called Conjunction.

On February 28th Jupiter will reach, Conjunction. On this day the Planet will be at its maximum distance from the Earth. Jupiter will reach a distance of 89,45,96,040 kilometers from the Earth. When close to the Earth, the planet Jupiter can reach a distance of 59,09,12,100 kilometers.

We will have to wait till the first week of April to see the giant planet again. In April the planet can be seen in the morning sky.

24 February 2010

Astro News: Star-forming region NGC 346


NGC 346, the brightest star-forming region in the neighbouring Small Magellanic Cloud galaxy, some 210 000 light-years away from Earth. The light, wind and heat given off by massive stars have dispersed the glowing gas within and around this star cluster, forming a surrounding wispy nebular structure that looks like a cobweb. NGC 346 is located in the constellation Tucana (the Toucan) and spans approximately 200 light-years. This particular image was obtained using the Wide Field Imager instrument at the 2.2-metre MPG/ESO telescope at the La Silla Observatory in Chile. Images like this help astronomers chronicle star birth and evolution, while offering glimpses of how stellar development influences the appearance of the cosmic environment over time. This is an enhanced colour image based on three different broadband filters (B, V, R), as well as a narrowband filter (H-alpha, shown in blue).

The field of view is about 30 arcminutes wide.

Photo Credit: ESO

Annular Solar Eclipse 2010 video taken from Dhanushkodi

This video of ASE 2010 was taken by Prakash Subbanna, Vice president of ABAA from Dhanushkodi, Tamil Nadu.



20 February 2010

ABAA in News

ABAA's young and active member Akshay Kumar gave details of the Vesta's close approch and how to observe them through the print media. This came out in Time of India news paper helping general public to observe the bright minor planet. Here is the scaned version of the article. Good work Akshay.


18 February 2010

Annular Solar Eclipse as seen from Bangalore

Here is the Video of the Partial Solar eclipse taken by Anil. This was taken on 15th January 2010, as we know it was Annular eclipse and was visible in parts of Kerala and Tamil Nadu, but in Bangalore it was a partial eclipse. Good video Anil.


17 February 2010

Vesta photos taken yesterday

Vesta, the brightest asteroid has been quite bright nowadays. Yesterday was a great opportunity to identify Vesta since it was very close to a bright star Gamma-Lionis.
Many members of ABAA observed the asteroid. Here are some photos taken yesterday and a finder chart by heavens-above for comparison.

Finder Chart:



Narrow field image: (Canon 450D, ISO 1600, 10", 250mm, f/4)


©ABAA


Wide Field image:(Canon 450D, ISO 1600, 10", 55mm, f/5.6)


©ABAA

Photos were taken by Keerthi Kiran, member of ABAA.

16 February 2010

Vesta at its brightest today

Asteroid Vesta is the second most massive asteroid in the asteroid belt. It was discovered by the German astronomer Heinrich Wilhelm Olbers on March 29, 1807 and named after the Roman virgin goddess of home and hearth, Vesta.
Vesta's size and bright surface make it the brightest asteroid, and it is some times even visible to the naked eye from dark (non-light polluted) skies.
In 2007 May-June, Vesta was visible to the naked eye with a magnitude of 5.4
Today is the best day to see asteroid Vesta.
Today Asteroid Vesta will be at opposition as seen from earth (Vesta will be very close to earth).
Therefore it will be brighter than usual. It will be shining at a magnitude of 6.1
So, it will be easily visible with a binocular or a small telescope.
Moreover, the asteroid Vesta is located in a favorable position. It is located very near to Gamma-Leonis.
The finder chart generated using Stellarium looks like this.



Asteroid Vesta will be bright throughout this week and will be easy to find.
Please utilize this great opportunity and tell us what you saw.