---
name: "get-healpix"
section: "1"
platform: "linux"
package: "astrometry.net"
version: "0.97+dfsg-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/get-healpix"
---

# get-healpix(1)

Convert RA,DEC to Which healpix

## NAME

get-healpix - Convert RA,DEC to Which healpix

## SYNOPSIS

**get-healpix** \[*options*\] *ra* *dec*\
 **get-healpix** \[*options*\] *x* *y* *z*

## OPTIONS

- **-r**

  RA/DEC values in radians; default is in decimal degrees or H:M:S

- **-H** *healpix*

  take healpix number as input and print center as output.

- **-N** *n*

  Nside (default 1)

- **-n**

  Print neighbours

- **-R** *range*

  print healpixes within radius *range* in degrees

- **-p**

  Project position within healpix

If your values are negative, add "--" in between "-r" (if you're using it) and "ra" or "x".

## AUTHOR

The Astrometry.net team. Principal investigators are David W. Hogg (NYU) and Dustin Lang (CMU).

## SEE ALSO

http://astrometry.net