bright.stars {UsingR} | R Documentation |
List of bright stars with Hipparcos catalog number
Description
List of bright stars with Hipparcos catalog number.
Usage
data(bright.stars)
Format
A data frame with 96 observations on the following 2 variables.
- name
Common name of star
- hip
HIP number for identification
Details
The source of star names goes back to the Greeks and Arabs. Few are modern. This is a list of 96 common stars.
Source
Form the Hipparcos website http://astro.estec.esa.nl/Hipparcos/ident6.html.
Examples
data(bright.stars)
all.names = paste(bright.stars$name, sep="", collapse="")
x = unlist(strsplit(tolower(all.names), ""))
letter.dist = sapply(letters, function(i) sum(x == i))
data(scrabble) # for frequency info
p = scrabble$frequency[1:26];p=p/sum(p)
chisq.test(letter.dist, p=p) # compare with English
[Package UsingR version 2.0-7 Index]