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Jan 17 14

AAAD General Body Meet

by vidur

Greetings AAAD Members,

I congratulate all of you as AAAD today celebrates its 2nd anniversary as a registered body.

This is to bring to notice all annual members (2013-2014) and all life members that in the governing body meeting held at the Nehru Planetarium on January 11, 2014 it was decided that AAAD will hold its Annual General Body Meeting on Sunday, February 16th 2014 at 12 noon.

We request all members to send the agendas they wish to be addressed at the GBM on and cc

The account details and transaction details for 2012-2013(previous financial year) will be available with the treasurer of AAAD Mr. Vishnu Rethinam during the GBM if any present members are interested in knowing the details they may approach him.

All members are requested to be there for the meeting. The GBM can last long as some important decisions are to be made. All members are requested to keep their afternoons free on the 16th february.

All members who wish to make donations to AAAD are also welcome to do so during the GBM.

Please carry your id cards for this meeting

Raghu Kalra
General Secretary AAAD

Jan 4 14

Physicists Look for Evidence of time travellers on the internet

by vidur

Physicists R. Nemiroff (of APOD fame) and his student Teresa Wilson, recently published their results of a grand internet search to look for evidence of time travelers. In a nutshell they were looking for ‘time traveler activity’ over the internet, say a timer traveler used his time machine to move back in time and say…send an email, or put information online about world events that just happened way before it actually did. Time travel to the future is allowed by special relativity, however there is much debate if we can actually go back in time.

The search as you may have expected didn’t turn out much …. but made for a pretty good story.

To read more you can download their preprint paper here

Nov 3 13

Watch today’s Hybrid Solar Eclipse Live Courtesy Slooh

by Anindya Roy

Sep 22 13

Happy Equinox

by vidur

The Autumn equinox happens today Sept 22nd at 2044 UTC. This moment marks the official end of summer in the Northern hemisphere and hopefully New Delhi too! Hopefully the weather gods will get the memo too. The autumn equinox marks the time of equal length days and nights. From now on nights will become longer than days in the northern hemisphere. Hopefully that would mean that mortals can sleep a bit more.

Clear Skies

Jun 5 13

Tonight’s Sky- June 2013

by vidur

Apr 29 13

Saturn at its best Opposition

by vidur

Greetings Fellow Astronuts

Its a great time to go under the stars and look for Saturn. Today on April 28th the planet makes its closest pass to earth in all of 2013. Finding Saturn is easy. Just look south for a bright magnitude 0 star due west of Spica in Virgo.

Happy Hunting!

Mar 25 13

XKCD: Starlight

by vidur

Mar 22 13

Tonight’s Sky, March 2013

by vidur

Mar 14 13

Website Update…

by vidur

Dear Astronuts

We’re back. This time running WordPress 3.5. Which means…better user experience, security and flexibility. In the next few days we will be restoring links from the old drupal system as pages and links will be slowly restored. We will also improve the looks from this crummy default theme!

Clear Skies




Aug 4 12

NASA to land on Mars, Indian Amateurs Astronomers collaborate in celebration

by vidur

The Amateur Astronomers Association Delhi (AAAD) in collaboration with National Aeronautics and Space Administration (NASA) and Nehru Planetarium is organising a public Mars watch to celebrate the landing of NASA’s Curiosity Rover in the Gale Crater on Mars.

AAAD is setting up a number of telescopes in the lawns of Nehru Planetarium on August 5, 2012 , 7PM onwards to observe Mars and to celebrate the human endeavor to reach our neighboring planet Mars. This observation is open to general public. A live webcast of this observation at New Delhi will be available on NASA’s website

Getting Curiosity to the surface of Mars will not be easy. During a critical period lasting 7 minutes, the MSL spacecraft carrying Curiosity must slow down from about 13,200 mph (about 5,900 meters per second) to allow the rover to land on the surface at about 1.7 mph (three-fourths of a meter per second). For the landing to succeed, hundreds of events will need to go right, many with split-second timing. All are controlled autonomously by the spacecraft.

In the first several weeks after landing, JPL mission controllers will put the rover through a series of checkouts and activities to characterize its performance on Mars while gradually ramping up scientific investigations. Curiosity then will begin investigating whether an area with a wet history inside Mars’ Gale Crater ever has offered an environment favorable for microbial life.

The mission is managed by JPL for NASA’s Science Mission Directorate in Washington. Curiosity was designed, developed and assembled at JPL.

Mission Facts:

Time of Mars landing: 05:31 Aug. 6 Universal Time plus or minus a minute. This is Earth-received time, which includes one-way light time for radio signal to reach Earth from Mars. The landing will be at about 3 p.m. local time at the Mars landing site.
Landing site: 4.6 degrees south latitude, 137.4 degrees east longitude, near base of Mount Sharp inside Gale Crater
Earth–Mars distance on landing day: 248 million kilometers
One-way radio transit time, Mars to Earth, on landing day: 13.8 minutes
Total distance of travel, Earth to Mars: 567 million kilometers
Primary mission: One Martian year (98 weeks)
Expected near-surface atmospheric temperatures at landing site during primary mission: minus 90 C to zero C

For Further Info:
+91-9990224091, Raghu Kalra