Quasars are extremely bright objects located at the core of active galaxies. Quasar 3C 273 was discovered in 1963 by Marten Schmidt and is located over 2 billion light years away. Pictures taken by the Hubble Space Telescope show 3C 273 emitting two jets of ionized gas. It has a redshift of 0.157, indicating it is moving away from Earth at over 655,000 miles per second.

1. Quasar
3C 273

2. What is a Quasar
• Quasi-stellar-object short: Quasar
• is the core of an active galaxy
• in visible light: looks like a star (brightest objects)
• 10^12 times brighter than the sun
• it emits two jets of ionised GAAAAAAAS
• very bright
• characteristic spectra
• very bride emission lines

4. 3C 273
• discovered 1963
• by Marten Schmidt
• no star
• 2.100.000.000 lightyears
• redshift: 0,157
• mag: 12,85

5. 3C 273

6. Pictures of 3C 273 taken with the Hubble Space Telescope

7. Quasar 3C 273

12. •759,6 - 656,26 = 103,34 (Difference)
•103,34 : 656,26 = 0,157468077 (divided through
the normal wavelength)
•0,157468077 x 299792,458 = 47207,74176 km/s
(multiplied with the speed of light)
•47207,74176 km/s : 72 = 655,66308 Mpsc
(divided through the Hubble constant)
•655,66308 Mpsc x 3,26 Mil Lj = 2137461641 =
2,137461641 bil Lj (multiplied with Lj`s)

13. • 759,6  2137461641 = 2,137461641 bil Lj
759,6  2137461641 = 2,137461641 bil Lj

14. • 563,1 – 486,13 = 76,97  2149190292 Lj = 2,149190292 bil Lj

15. • 563,1  2149190292 Lj = 2,149190292 bil Lj
563,1  2149190292 Lj = 2,149190292 bil Lj

16. Our calculation: H-alpha 2,137 billion Lj
H-beta 2,149 billion Lj
Differenz between Results: 0,2 %
Calculation from astronoms: 2,436 bil Lj und 2,351 bil Lj

17. • 563 / 1,157 = 486,6 nm  H-β
443,3 / 1,175 = 383,1 nm  H-η

18. Transition of 3→2 4→2 5→2 6→2 7→2 8→2 9→2 →2
Name H-α H-β H-γ H-δ H-ε H-ζ H-η
Wavelength
(nm)
656,2 486,1 434 410,1 397,0 388,8 383.5 364,6

19. • 474,4 / 1,157 = 410,02 nm = H-δ
503,4 / 1,157 = 434 nm = H-γ

20. • 448 / 1,157 = 387,2 nm = H-ζ
458,9 / 1,157 = 396,6 nm = H-ε

21. Quasar and star

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