PX269 Galaxies 7.5 CATs; ~18 lectures; follows from PX268 Stars Dr Peter Wheatley...

PX269 Galaxies

PX269 Galaxies

7.5 CATs; ~18 lectures; follows from PX268 Stars

Dr Peter Wheatley

[email protected] Office: PS009

PX269 Galaxies

Books

PX269 Galaxies

Books II

PX269 Galaxies

Books III

PX269 GalaxiesWei-Hao WangUniversity of Hawaii

PX269 Galaxies

Galileo Galilei

1609

PX269 Galaxies

Cassini probe

Galileo’s sketch

PX269 Galaxies

Europa Io Ganymede Callisto

Kurt Friedrich

SIDEREAL MESSENGERunfolding great and very wonderful sightsand displaying to the gaze of everyone,but especially philosophers and astronomers,the things that were observed byGALILEO GALILEI,Florentine patricianand public mathematician of the University of Padua,with the help of a spyglass lately devised by him,about the face of the Moon, countless fixed stars,the Milky Way, nebulous stars,but especially aboutfour planetsflying around the star of Jupiter at unequal intervalsand periods with wonderful swiftness;which, unknown by anyone until this day,the first author detected recentlyand decided to nameMEDICEAN STARS

The Starry Messenger, Galileo Galilei 1610

PX269 Galaxies

Milky Way

Wei-Hao WangUniversity of Hawaii

PX269 Galaxies


PX269 Galaxies

1750s

Thomas Wright

Immanuel Kant

Rich Townsend, UCL

PX269 Galaxies


PX269 Galaxies

Charles Messier

Andromeda Galaxy = M31 = NGC 224

PX269 Galaxies

Henrietta Swan Leavitt

Log Period [d]

Magnitude

PX269 Galaxies

Edwin Hubble

100-inch Mt Wilson telescope

PX269 Galaxies

PX269 Galaxies

Hubble Deep Field

1,000,000 sec exposure

Seeing 100 billion times fainter than human eye…

…and half way back to the beginning of time.

M87

an elliptical galaxy

CFHT

PX269 Galaxies

NGC 2768

An elliptical galaxy

M 51 the Whirlpool Galaxy

NGC 1300 a barred spiral galaxy

Dust extinction in the Sombrero Galaxy = M 104

NGC 1427A

a dwarf irregular galaxy

http://heritage.stsci.edu/2005/09/index.html

Herschel, 1785

PX269 Galaxies

Globular cluster 47 Tuc, 2MASS


Extinction in plane of Milky Way

NGC 891, showing extinction Adam Block

PX269 Galaxies

NGC 6744, Milky Way-like galaxy Capella Observatory

PX269 Galaxies NGC 6744, HI, Ryder et al 1999


HII regions

Mike Fleenor

PX269 Galaxies NGC 6744, HI, Ryder et al 1999

PX269 Galaxies

21cm map of Milky Way

PX269 Galaxies Molecular clouds

PX269 GalaxiesInterstellar reddening

PX269 Galaxies

Philip Perkins

Pleiades open cluster

PX269 GalaxiesCFHT 2MASS

NGC 891 Optical Infra-red

PX269 Galaxies

COBE/DIRBE near infrared image of whole sky

PX269 Galaxies

Galactic co-ordinates

PX269 Galaxies

HI map of whole sky

PX269 Galaxies

21 cm line profile along one line of sight

PX269 Galaxies

PX269 Galaxies

Rotation curve of Milky Way

PX269 Galaxies

PX269 Galaxies

First detection of a gravitational microlensing event

Alcock et al 1993

PX269 Galaxies

Discovery of a 5 Earth mass planet

Beaulieu et al 2006

PX269 Galaxies 7.5 CATs; ~18 lectures; follows from PX268 Stars Dr Peter Wheatley...

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