Discovering with SOHO: STEREO

In October this year we received some meteorite samples from Neatherd High School and Dereham 6th Form College Astronomy Club, Norfolk, UK. The Club also sent us the second edition of ‘Meteorites’ published by The Natural History Museum of the UK along with some astronomy posters.
This same school has a great website and has recently added a section about Solar Terrestrial Relations Observatory (STEREO) spacecraft. Visit http://astronomy.neatherd.org/SOS/SOHO/SOHOstereo.htm

This text from NASA’s official site for STEREO:

STEREO (Solar TErrestrial RElations Observatory) is the third mission in NASA’s
Solar Terrestrial Probes program (STP). This two-year mission will employ two nearly identical
space-based observatories – one ahead of Earth in its orbit, the other trailing
behind – to provide the first-ever stereoscopic measurements to study the Sun
and the nature of its coronal mass ejections, or CMEs.
STEREO’s scientific
objectives are to:
Understand the causes and mechanisms of coronal mass
ejection (CME) initiation.
Characterize the propagation of CMEs through the
heliosphere.
Discover the mechanisms and sites of energetic particle
acceleration in the low corona and the interplanetary medium.
Improve the
determination of the structure of the ambient solar wind.

We hope to put an article on this in coming issues of The Astral Journal pdf ezine.

New Sunspots

In the morning hour, when the sky is mostly covered with fog, or at sunset we can actually see the sunspot 923 with naked eyes. The first picture is my photoshop art where I have depicted the 923 exactly where I had seen with naked eyes, the viewfinder of my telescope and the telescope itself. I watched it for just a few seconds. If I had watched for a longer time I’d have damaged my eyes. WARNING: Don’t ever try watching the sun with/without any instrument without using a proper solar filter.

2nd picture from spaceweather.com

Do these newly appeared sunspots pose any threat for strong solar flares? (My answer is no.)

Astronomy vs. Astrology

Astrologers say Lagna is more reliable than traditional ‘zodiac horoscopes’.
Lagna is taken from start of the day. The lagna at sunrise is the constellation where the sun is supposed to be that time. Two hours later the constellation rising next to the first lagna of the day is taken as the next lagna. The lagna changes every two hours just like this. But if we are taking the reference point at sunrise and the constellation the sun resides in at the sunrise, then we are purely not using the right constellation. It is because no astrologers are updated with the precession of equinoxes. The calculation is again off by one constellation. So lagnas calculated for any time of the day is wrong. So how can the astrologers be so sure that when they are calculating lagnas they are making more accurate predictions?

Leonid Meteor Shower 2006

A meteor streaks past the Milky Way in this picture from November 26, 1998 picture of the Day by Jeff Medkeff . While the stars are hundreds to millions of light years away the meteor is just a space rock burning a few kilometers above the earth’s surface in the atmosphere.
November is the best time of the year for watching Meteors. Leonid Meteor shower peaks on 19th this month. Evening watchers: Its not the right time to watch but earthgrazers are good to look at. Morning watchers: Its in the mornings that most of the space rocks come into the way of Earth’s orbit to enter the atmosphere fast and more in number.
Some researchers state this year’s Leonid shower won’t be so good. Low meteor rate has been suggested. Keep watching untill 21st from 14th.

Mercury Transit 2006

Mercury transit of 2006 that occured in the night of 8-9 November was not visible from Nepal. Mercury transited the sun to now become a morning planet. It will rise at 6 on 11th of this month, 5:20 am on 16th, 4:59 on 24th/25th (Greatest elongation on 25th, 20 degress from the sun) and 5:06 on 30th.
You can see visibility map of the transit at http://www.nao.rl.ac.uk/nao/transit/M_2006/. Picture galleries of the transit can be found at the following sites:
SOHO website (NASA) Transit pictures and MPEG videos as seen from SOHO http://sohowww.nascom.nasa.gov/hotshots/2006_11_06/
SpaceWeather (NASA) http://spaceweather.com/eclipses/gallery_08nov06.htm
Animated Transit http://science.nasa.gov/headlines/y2006/20oct_transitofmercury.htm

Web-resources: LCROSS, Calendar & Pluto

Because the support site for The Astral Journal is not complete yet, I am posting the web-resource materials for some articles in this blog:

LCROSS: WATER ON THE MOON

LAUNCH DATE: OCTOBER 2008
MISSION: To search for water ice deposits on the Moon
The Astral Journal Oct-Nov 06 Page 4
AMES RESEARCH CENTER WEBSITE:
http://www.nasa.gov/centers/ames/home/index.html
LUNAR PROSPECTOR 1988 MOON MISSION: http://discovery.nasa.gov/prospector.html
LCROSS MISSION PICTURES: http://www.nasa.gov/centers/ames/multimedia/images/2006/lunarorbiter.html
CLEMENTINE MISSION: http://science.nasa.gov/headlines/y2005/14apr_moonwater.htm

SPACE CALENDAR

From JPL’s Space Calendar compiled and maintained by Ron Baalke
Click on the links for more info on the events listed
2006
Nov 08 – Mercury Transits the Sun
Nov 17 – Leonids Meteor Shower Peak
Dec 13 – Geminids Meteor Shower Peak
Dec 22 – Winter Solstice, 00:22 UT
Dec 22 – Ursids Meteor Shower Peak
Meteor Showers List:
http://csep10.phys.utk.edu/astr161/lect/meteors/shower_list.html

PLUTO RESEARCH

Go to Mike Brown’s website http://www.gps.caltech.edu/~mbrown/planetlila. He discovered the largest dwarf planet (Eris, also called Xena or 2003UB313).
Wikipedia article on new definition of the word ‘planet’: http://en.wikipedia.org/wiki/2006_definition_of_planet
More simplified article on new definition of ‘planets’ and Pluto’s planetary status will appear in the 2nd issue of The Astral Journal.

1st issue

October-November 2006 issue (full version) is now available for free download.
The support (and download) website of The Astral Journal is yet to be uploaded.

The Observation of Variable Stars
Types of Variable Stars
Why observe Variable Stars?
How to observe Variable Stars?
Written by Colin Henshaw

Do you still read your HOROSCOPE?
Why are the signs wrong?
Why do planets affect them?
Astronomy came first…
Written by Pradipta Shrestha

Sky Gazing
November 06 article by Kedar P Badu
MessierWatch
MoonMadness
TwilightPlanets
StarGazing

• ‘Da Cosmic Calendar
• LCROSS: Water On The Moon
• The Red Planet in History
• Important Dates
• Astro-Poetry
• Humor: Cosmic Trip Comics Strip
• Space Contest
• Astrophotography
• and more…

The freezine is published through:

• Kosmandu Astronomical Society’s official site
• The Cosmic Group: Kosmandu’s Yahoo! discussion group
• Astro Nepal: GASPO’s Astronomy discussion group