a) Location of the Sun
b) Thin/thick disks, bulge, halo
c) Globular clusters
d) The Small Magellanic Cloud and the Large Magellanic Cloud
e) Sgr A* (black hole)
f) Location of Orion star forming region, and the nearest and furthest known open clusters to the Sun
g) Scale length and scale height
Nearest open cluster: Hyades (153ly)
Furthest open cluster: Berkeley 29 (15,000ly)
Sources:
http://galaxymap.org/drupal/node/171
http://www.space.com/25584-milky-way-structure-spiral-arms.html
https://en.wikipedia.org/wiki/Orion_Nebula
http://www.atlasoftheuniverse.com/milkyway.html
https://en.wikipedia.org/wiki/Milky_Way
http://www.ess.sunysb.edu/fwalter/AST101/images/mw-side.jpg
http://pages.uoregon.edu/jimbrau/BrauImNew/Chap23/6th/23_10Figure-F.jpg
https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Milky-way-edge-on.pdf/page1-945px-Milky-way-edge-on.pdf.jpg
http://astronomy.swin.edu.au/cms/cpg15x/albums/userpics/thickdisks1+0.jpg
http://www2.astro.psu.edu/users/cpalma/astro1h/Images/FG14_09.JPG
https://en.wikipedia.org/wiki/Hyades_(star_cluster)
http://www.univie.ac.at/webda/cgi-bin/ocl_page.cgi?dirname=be029
https://en.wikipedia.org/wiki/Galactic_coordinate_system
https://www.univie.ac.at/webda/cgi-bin/ocl_page.cgi?dirname=mel025
http://www.univie.ac.at/webda/cgi-bin/ocl_page.cgi?dirname=ngc1976
http://www.poyntsource.com/Richard/ngc_5694_escaping_globular.htm
https://en.wikipedia.org/wiki/Small_Magellanic_Cloud
https://en.wikipedia.org/wiki/Large_Magellanic_Cloud
It would be nice to see more labels of length scales for your drawings! And I want to read something about all these Milky Way structures you have illustrated!
ReplyDelete3