|
June 27 2010 21:33 UTC | Views: 204 | Comments: 1
Posted by: Kochava in Sky Safari Slideshow
1) John William Draper as a young man (1835)
picture credit: Smithsonian Institute
2) Daguerreotype Image of the Moon by J.A. Whipple, Harvard University, 1852
(John Draper's original daguerreotype of the moon was lost in a fire)
image credit: University of Virginia
3) Daguerreotype Image of Solar Spectrum by John Draper, 1840 image shows both the visible spectrum and part of the ultraviolet
picture credit: Smithsonian Institute
4) Henry Draper with his telescope
picture credit: Wikipedia
5) Henry Draper as an army surgeon in the Civil War, 1862
picture credit: Hastings-on-Hudson Historical Society
6) Photograph of the Moon by Henry Draper, 1863
image credit: Smithsonian Institute
7) Portrait of Anna Draper, 1888, by John White Alexander
picture credit: http://www.museumsyndicate.com/
8) Wet-plate Photography (the Collodion Process)
picture credits: PBS and http://www.collodion.org/
9) Solar Spectrum with Absorption Lines
picture credit: Wikipedia
10) How an Absorption Spectrum Works picture credit: Wikipedia
11) Henry Draper's Observatory in Hastings-on-Hudson, NY, 1880
picture credit: Hastings-on-Hudson Historical Society
12) Venus Transit Photographed in 1882 by US Naval Observatory expedition
(pictures from 1874 expeditions did not survive)
image credit: US Naval Observatory
13) Venus transit 2004
image credit: Slooh; imaged by Derek Hirons
14) Drawing (based on photographs) of the 1878 Solar Eclipse
picture credit: Wikipedia and "Total Eclipses of the Sun" by Mabel Loomis Todd
15) Orion Nebula photographed by Henry Draper
image credits: Harvard College Observatory and American Institute of Physics (1880 image);
Open Door Website http://www.saburchill.com/ (1882 image)
 |
 |
1880 photo
|
1882 photo
|
<><>
16) Modern Photo of Orion Nebula
Amateur Astronomy Picture of the Day for Feb 9, 2010
Image credit: John Love and Donald Waid
17) Drawing of Orion Nebula as it appears visually
picture credit: Jeremy Perez http://www.perezmedia.net/beltofvenus
18) Spectral Class Mnemonics:
Oven Baked Apples From Grandma’s Kitchen – Mmmm!
|
“Oh Boy Another F’s Gonna Kill Me.”
“Only Boring Astronomers Find Gratification Knowing Mnemonics!”
“Oh Be A Fine Girl, Kiss Me!”
“Only Boys Accepting Feminism Get Kissed Meaningfully!”
19) Spectral Classes and Examples
|
Spectral
class
|
Color
|
Surface Temperature
(K)
|
Examples –
main sequence
|
Examples –
giants
|
O
|
Blue
|
30,000 - 50,000
|
Theta-1C Orionis (in Trapezium, in Orion nebula)
|
Alnitak and Mintaka (in Orion’s belt)
|
|
B
|
Blue-white
|
10,000 - 30,000
|
Spica, Regulus, brighter Pleiades (Taygeta, Asterope)
|
Rigel, brighter Pleiades (Alcyone, Electra, Maia)
|
|
A
|
White
|
7500 - 10,000
|
Vega, Sirius, Altair
|
Deneb
|
|
F
|
Yellow-white
|
6000 - 7500
|
Procyon
|
Canopus, Mirfak (Alpha Persei), Polaris
|
|
G
|
Yellow
|
5000 - 6000
|
Sun, Alpha Centauri A
|
Capella
|
|
K
|
Orange
|
3500 – 5000
|
Alsafi (Sigma Draconis), Keid (Omicron-2 Eridani)
|
Arcturus, Aldebaran
|
|
M
|
Red
|
2000 – 3500
|
Barnard’s star, Proxima Centauri
|
Betelgeuse, Antares
|
Share Skylog Sky Safari
Del.icio.us |
Digg |
Technorati |
Blinklist |
Furl |
reddit |
Tweet This |
Facebook
|
