Orpington Astronomical Society

Astronomy => Alerts! Questions? Discussions... => Topic started by: Whitters on May 09, 2006, 23:58:21

Title: A Comet Splits in Two
Post by: Whitters on May 09, 2006, 23:58:21
Space Weather News for April 22, 2006
http://spaceweather.com

COMET NEWS: Astronomers are now monitoring more than 30 fragments of dying comet 73P/Schwassmann-Wachmann 3, which is approaching Earth for a close encounter in mid-May. One of the brightest fragments, fragment B, is splitting in two in plain view of amateur astronomers using backyard telescopes.   Visit Spaceweather.com for pictures of the breakup, sky maps and more.

Take a look at this one
(http://spaceweather.com/swpod2006/08may06/seip1.jpg)
Title: A Comet Splits in Two
Post by: Whitters on May 09, 2006, 23:59:19
He has even got the 15mag spiral, what a wonderful picture. Where have all our clear skies gone?
Title: A Comet Splits in Two
Post by: Rick on May 10, 2006, 07:49:43
Wow! Great shot! Who took it?
Title: A Comet Splits in Two
Post by: Mike on May 10, 2006, 08:52:18
Awesome !! Would like to know the location and equipment used for that
Title: A Comet Splits in Two
Post by: JohnP on May 10, 2006, 15:46:56
Hi Mike, All,

Yes - the comet made a close approach to M57 a few nights ago - shame we were clouded out. Anyhow if you look at the image there is a webpage address from which you can get the following details...


 

  Object ................................... Comet 73P/Schwassmann-Wachmann 3
 Name .................................... meets the Ring Nebula (Messier 57)
 Date + Time .......................... May 8, 2006 / 0:00 - 3:00 UT
 Location ................................. Observatory Welzheim, near Stuttgart, Germany
 Optics .................................... 0.9 meter reflector @ f/6.7
 Tools ..................................... Lumicon Giant Easy Guider
 Medium ................................. SBIG STL 11000M with SBIG RGB filterset
 Exposure Time(s) ................... Comet:
Luminance: 20x 1 minute (2x2 Binning)
RGB color: 4x 1 minute (3x3 Binning) each color

Stars/Nebula:
RGB color: 5x 5 minutes (2x2 Binning) each color
 More Details ........................... Dark- and flatframe-corrected
 Mount .................................... -
 Guiding .................................. No guiding, but mount ran in 'Comet tracking mode' (star tracking for the background)
 Processing Details ................... MaxIm DL, PhotoShop,
 Notes ..................................... Co-Observer: Steffen Brückner

The galaxy IC 1296 (15.1 mag) is clearly visible between the comet head and the Ring Nebula.



Cheers,  John
Title: A Comet Splits in Two
Post by: Mike on May 10, 2006, 16:13:14
Optics .................................... 0.9 meter reflector @ f/6.7
Medium ................................. SBIG STL 11000M with SBIG RGB filterset

No wonder it's so fantastic !!

LOL !!    :lol:
Title: A Comet Splits in Two
Post by: JohnP on May 10, 2006, 16:15:48
Yep - I don't reckon you would class that image as 'Amateur...' :-)
Title: A Comet Splits in Two
Post by: Whitters on May 11, 2006, 07:25:55
HERE THEY COME: More than 60 fragments of dying comet 73P/Schwassmann-Wachmann 3 are racing toward Earth. There's no danger of a collision. At closest approach on May 12th through 16th, the mini-comets will be 6 million miles away.

That is close enough, however, for a marvelous view through backyard telescopes.  Many of the fragments are themselves crumbling, producing clouds of gas and dust mixed with boulder-sized debris. As some fragments fade, others brighten, surprising onlookers. It's an amazing display.

Visit http://spaceweather.com for sky maps, updates and images from around the world.
Title: A Comet Splits in Two
Post by: Rick on May 11, 2006, 13:03:25
Oh for a nice handy really dark sky. It should be quite a sight.
Title: A Comet Splits in Two
Post by: Tony G on May 11, 2006, 17:33:19
Hi
the garden session at Mike's tomorrow night is looking good for observing and maybe some nice images of the comet (i would be pleased just seeing it)

Tony G
Title: A Comet Splits in Two
Post by: Mike on May 11, 2006, 22:58:51
According to metcheck and the Met Office, all we are going to be observing is the bottom of our wine (or cider) glasses.
Title: A Comet Splits in Two
Post by: Whitters on May 13, 2006, 09:22:45
Mike,
Thanks again for a great evening
Title: A Comet Splits in Two
Post by: Delphine on May 17, 2006, 10:37:13
I can't beleive it.  I have just come back from a cruise in the Norwegian Fjords and saw this enormous star in the east and have only just found out what it was.  If I had known I would have taken a piccy of it.  How frustrating!!!!!!!!
Title: A Comet Splits in Two
Post by: Mike on May 17, 2006, 11:13:51
And now it's not visible till very early in the morning. It's moving fast ! Does anyone know if it will come around again in a few weeks/months ?
Title: A Comet Splits in Two
Post by: Rick on May 17, 2006, 11:54:15
See http://forum.orpington-astronomy.org.uk/index.php/topic,1755.0.html