1. A Study of the Correlation between Galactic Distance and Morphology Harry Gaebler and Rebecca Jensen- Clem

2. What is Redshift? -The distances to 30 different galaxies were computed before camp using redshift. -Redshift is the movement of spectral lines toward the red end of the spectrum as light from distant objects is stretched. -Redshift can be used to calculate the recessional velocity of objects. -After obtaining the recessional velocity of an object, one can calculate its distance using Hubble's Law.

4. Sa Galaxy Redshift Results -Galaxy Redshift Recessional V Distance -NGC 3368 Z=0.003 900 km/s 39 Mly -NGC 4594 Z=0.004 1200 km/s 52 Mly -NGC 3626 Z=0.004977 1493.1 km/s 65 Mly -NGC 2775 Z=0.0045 1350 km/s 59 Mly -NGC 488 Z=0.008 2400 km/s 104 Mly -NGC 3898 Z=0.003929 1178.1 km/s 51 Mly -NGC 3593 Z=0.002091 627.3 km/s 27 Mly -NGC 4698 Z=0.003359 1007.7 km/s 44 Mly -NGC 3281 Z=0.011475 3442.5 km/s 150 Mly -NGC 2639 Z=0.010854 3256.2 km/s 142 My -NGC 7217 Z=.003166 949.8 km/s 41 Mly

5. Sb Galaxy Redshift Results -Galaxy Redshift Recessional V Distance -NGC 5055 Z=0.0028 851.2 km/s 37 Mly -NGC 3627 Z=0.0027 810 km/s 35 Mly -NGC 3628 Z=0.00282 846 km/s 37 Mly -NGC 3031 Z=0.000997 299.1 km/s 13 Mly -NGC 891 Z=0.0018 540 km/s 23 Mly -NGC 224 Z=0.000192 57.6 km/s 2.5 Mly -NGC 2841 Z=0.002121 636.3 km/s 27.6 Mly -NGC 4419 Z=0.00399 1197 km/s 52 Mly -NGC 1589 Z=0.012672 3801.6 km/s 165 Mly

6. Sc Galaxy Redshift Results -Galaxy Redshift Recessional V Distance -NGC 598 Z=0.00023 69 km/s 3 Mly -NGC 5457 Z=0.00207 621 km/s 27 Mly -NGC 5194 Z=0.00238 714 km/s 31 Mly -NGC 628 Z=0.0023 690 km/s 30 Mly -NGC 5236 Z=0.00115 345 km/s 15 Mly -NGC 4321 Z=0.00524 1571 km/s 68 Mly -NGC 6946 Z=0.00015 45 km/s 19 Mly -NGC 4244 Z=0.0005 150 km/s 6.5 Mly -NGC 4631 Z=0.00192 576 km/s 25 Mly -NGC 173 Z=.014637 4391.1 km/s 191 Mly

7. Redshift Results for Galaxies >35 Mly

8. Redshift Results for Galaxies <35 Mly

9. Our Camp Observations We chose 4 different objects to observe with the CCD camera on the 61'' Kuiper Telescope -NGC 6946 (Sc) -NGC 7331 (Sb) -NGC 7604 (Sa) -NGC 7217 (Sa)

10. NGC 7217 (Sa)

11. NGC 7604 (Sa)

12. NGC 7331 (Sb)

13. NGC 6946 (Sc)

14. Photometry ~Adding up the brightnesses of the disk and the bulge gives the total brightness of the galaxy ~ IRAF was used to reduce the data ~Integration of the disk and bulge data was the final step before finding the distance

15. Finding the Distance -(f1)(d1)^2=(f2)(d2)^2 -We used known redshifts as one of the distances in the equation -Galaxy Calculated Distance Redshift Distance -6946 11 Mly 19 Mly -7331 59 Mly 34 Mly -7604 290 Mly 164 Mly -7217 23 Mly 41 Mly