ggsky is an extension for ggplot2 to draw
sky maps with:
coord_galactic())coord_equatorial())It includes custom coordinate systems and helper scales for longitude/latitude labels.
From GitHub:
remotes::install_github("uskovgs/ggsky") library(ggplot2)
library(ggsky)
N <- 100
df1 <- data.frame(
x = runif(N, 0, 360),
y = runif(N, -90, 90)
)
ggplot(df1, aes(x, y)) +
geom_point() +
coord_galactic() +
labs(title = "Galactic coordinate system")
ggplot(df1, aes(x, y)) +
geom_point() +
labs(title = "Equatorial coordinate system") +
coord_equatorial()
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