Color-magnitude diagram of star clusters

Worksheet for students

age of a globular cluster

(word file)

FITS data

globular cluster

NGC362 (age: 8.3 Gyr)

• HST WFPC2 data

• camera rotation angle: 141 degree

• calibrated (sky-level, [BV] level adjusted) 2.6MB each

B ( CCD#1, CCD#2, CCD#3, CCD#4),

V ( CCD#1, CCD#2, CCD#3, CCD#4)

Image of cluster

field of view: 30' x 30' (93kB, gif)

Excel macro for color-magnitude diagram

absolute magnitude, 

apparent magnitude  (sorry, in Japanese)

sample data (csv) [ B, V ]

Worksheet for students

main sequence stars of an open cluster

(word file)

FITS data

open cluster

M38 (NGC1912, age: 320 Myr)

• Kiso Obs. 2KCCD data

• calibrated (sky-level, [BV] level adjusted, trimmed) 

B, V 4MB each

Image of cluster

field of view: 

30'x30' (158kB gif),

60'x60' (165kB gif),

120'x120' (418kB png)

Excel macro for color-magnitude diagram

absolute magnitude, 

apparent magnitude  (sorry, in Japanese)

sample data (csv) [ B, V ]

sample result (gif) (absolute magnitude)

Worksheet for students

stellar evolution of clusters

(word file)

FITS data

Download data of both clusters