An Atlas of the Universe - Changes
This is a record of most of the changes and new additions that have been made
to the website over the past few months.
- 22 Jul 2006
- I have replaced the Map of the Milkyway Galaxy
with a new version (1, 2).
- I also rewrote the section on The Shape of the Milky Way - The Evidence
- 16 May 2006
- I added a proper copyright statement to my website.
- 1 May 2006
- This website was translated into Turkish!.
- 16 Apr 2006
- I added a page about the Gamma Cygni Nebula.
(This was an unfinished page which has been sitting on my computer for the past
three years). :)
- 21 Dec 2004
- I also mapped the entire night-sky onto the sides of a
Oh, and I also changed the wallpaper(1, 2)
on this website.
- 21 Dec 2004
- I increased the number of stars within 250 light years to
260 000 and I doubled the number of stars within 5000 light years
to 600 million.
- I increased the number of stars within 500 000 light years
to 225 billion.
- I increased the number of galaxy groups within 100 million light years
to 200, but I decreased the number of stars to 200 trillion (2x1014).
- I increased the number of superclusters within 1 billion light years
to 100 and I increased the number of galaxy groups to 240 000, but I decreased the number
of stars to 250 000 trillion (2.5x1017).
- I also underestimated the number of stars and galaxies in the entire visible
universe (there is an enormous population of galaxies at very high redshifts):
In the visible universe there are 10 million superclusters,
25 billion galaxy groups, 350 billion large galaxies, 3.5 trillion dwarf galaxies and
30 billion trillion (3x1022) stars!
- 16 Sep 2003
Epsilon Indi is now known to be orbited by two brown dwarfs. I had to
change the description of the star and update the
list of the nearest stars.
- 6 Sep 2003
250 000 visitors have now visited this website.
- 23 Aug 2003
I added 3 more galaxy pictures to the bottom of the Maffei Group
page (and I also swapped the IC 342 picture with a better version).
I added 3 more galaxy pictures to bottom of the M81 Group page.
- 8 Aug 2003
I replaced the picture of NGC 55 on the Sculptor Group
page with a larger version, (and I added a picture of ESO 471-06).
I added 3 more galaxy pictures to bottom of the page about the
NGC 5128 Group.
- 26 Jul 2003
Joan Gironès translated this website into Catalan!
The Portuguese version of this
website also changed to a new address.
- 1 Jun 2003
I rewrote the Links page.
- 30 May 2003
The following pictures were all replaced with better versions:
2 May 2003
I reduced the size of the visible universe to 14 billion light years. :)
- 1 Mar 2003
I changed the table code on the index page to make it look better.
- 28 Feb 2003
The Polish version of this
webpage changed to a new address.
- 11 Feb 2003
I created a page about the
Eagle and Omega nebulae. (I also
combined these two nebulae together into a single page).
- 8 Feb 2003
A few supercluster links changed location:
- 30 Nov 2002
I added an all-sky plot of every star visible with the naked eye.
I also added an additional picture of the Shapley supercluster at the bottom of
- 11 Nov 2002
I added a much larger version of my map of
the Galaxy here.
And I replaced the image at the bottom-left of this page.
The previous picture was the wrong Pavo cluster!
- 14 August 2002
Hooray! 100 000 visitors. :)
- 14 July 2002
Ramiro Clavijo translated this web page into Spanish!
- 16 Jun 2002
I changed the Dark Nebulae page - I replaced
the map with a new version which includes southern
hemisphere objects. I changed the list next to it. I also added a second diagram
of molecular clouds.
And I replaced the picture of the Pipe Nebula with a better version.
I added a few extra dark nebulae to this map.
- 25 May 2002
I revised the list of The 200 Brightest Stars, especially the
star names and the spectral classes.
I also replaced the picture at the bottom of the page with a picture of Orion's belt.
- 18 April 2002
I added one more star (LP 656-38) to the maps [1, 2]
and list of stars within 20 light years.
There are now 110 stars within 20 light years in 79 star systems.
- 13 April 2002
This website was translated into Serbian!
- 4 March 2002
Norbert Rumiano translated this site into French!
I discovered how to create
coloured table borders :)
- 19 January 2002
I replaced the 250 Light Years map (and
this one) with an actual plot of the 1500 most luminous
stars within 250 light years, and I also rewrote the "About the Map" description, I
had to change my claim that the majority of the naked eye stars are within 250 light
years because it isn't actually true. :)
I also added a map of the Hyades star cluster.
- 24 November 2001
Redrew the Orion Arm and also added
an all-sky plot of the 25000 brightest, whitest stars.
Also created this Recent Changes page.
- 2 November 2001
Revised and redrew the other picture of The Galaxy.
- 1 November 2001
Added this diagram that zooms out from the Earth to the
- 13 October 2001
I redrew the Milky Way yet again to make it even more
accurate and incorporate new information about the shape of the central bar.
- 23 June 2001
Revised everything on superclusters. Redrew the 1 billion
light years map, rewrote all of the supercluster descriptions and revised the
list of the nearest superclusters.
- 15 June 2001
Hooray! 10000 hits on this page since last August.
- 6 May 2001
Added some nebulae and star cluster pictures.
- 6 April 2001
Added a map of all the naked eye stars within 50 light years.