Population II Cepheid Project: M3

The table below gives standard magnitudes measured through B, V, and I filters for the standard stars used to calibrate our images of M3. Each star is indicated by both a letter which corresponds to the markers in the above picture and its Stetson identification number.

ID Stetson ID B Magnitude V Magnitude I Magnitude

A 681 14.152 N/A 11.379

B 683 14.181 12.739 11.210

C 815 14.560 13.298 12.004

D 841 14.850 13.854 12.737

E 798 14.59 13.311 12.042

F 840 15.012 13.993 12.862

The only Cepheid II in M3 is V154. Watch this space for light curves and color-magnitude diagrams!

SEDS Info for M3.

MAIN PAGE.

ID	Stetson ID	B Magnitude	V Magnitude	I Magnitude
A	681	14.152	N/A	11.379
B	683	14.181	12.739	11.210
C	815	14.560	13.298	12.004
D	841	14.850	13.854	12.737
E	798	14.59	13.311	12.042
F	840	15.012	13.993	12.862