Hubble Law Lab, the Short Version

NAME: ________________________________

Table 1: Data

Galaxy	Spectral Lines			Average z	Velocity	Size	Distance
ID	Ca K	Ca H	H	/	(km/s)	(mrad)	(Mpc)
NGC 1357
	z=	z=	z=
NGC 2276
	z=	z=	z=
NGC 2903
	z=	z=	z=
NGC 3627
	z=	z=	z=
NGC 4775
	z=	z=	z=
NGC 6181
	z=	z=	z=
NGC 6643
	z=	z=	z=
NGC 1832
	z=	z=	z=
NGC 5248
	z=	z=	z=
NGC 4631
	z=	z=	z=

Rest Wavelengths : H: 656.28 nm (6562.8 A) : CaH: 396.85 nm (3968.5 A) : CaK: 393.37 nm (3933.7 A)

A. H_o = ______________ +/- ______________ km/sec/Mpc

B. H_o = ___________________ /sec

C. Age = ___________________ sec = ___________________ years.

D. Age = ___________________ sec = ___________________ years.

E. The Universe is ________ times older than the sun.

---