HRstars: Star data useful for drawing a Hertzsprung-Russell diagram.

In GDAdata: Datasets for the Book Graphical Data Analysis with R

Description

Hertzsprung-Russell diagrams plot star luminosity (brightness) against temperature (colour). The first one was drawn just over 100 years ago. The dataset is the Yale Trigonometric Parallax Dataset and this version can be found on the webpage of the Astronomy Department of Case Western Reserve University.

Usage

data(HRstars)

Format

A data frame with 6220 observations on the following 5 variables.

ID

star ID number

V

apparent V magnitude

BV

observed B-V color

Para

observed parallax (in arcsec)

Uncert

uncertainty in parallax (in milliarcsec)

Source

http://burro.astr.cwru.edu/Academics/Astr221/HW/HW5/HW5.html

Examples

data(HRstars, package="GDAdata")
with(HRstars, hist(BV))
with(HRstars, hist(V))

Example output

GDAdata documentation built on May 2, 2019, 5:11 a.m.