---
name: "wcs-rd2xy"
section: "1"
platform: "linux"
package: "astrometry.net"
version: "0.97+dfsg-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/wcs-rd2xy"
---

# wcs-rd2xy(1)

Convert lists of pixel from (RA,Dec) to (x,y) positions.

## NAME

wcs-rd2xy - Convert lists of pixel from (RA,Dec) to (x,y) positions.

## SYNOPSIS

**wcs-rd2xy** \[options\] **-w** *file*

## OPTIONS

- **-w** *file*

  WCS input file

- **-e** *extension*

  FITS HDU number to read WCS from (default 0 = primary)

- **-i** *file*

  rdls input file

- **-o** *file*

  xyls output file

- **-f** *index*

  rdls field index (default: all)

- **-R** *name*

  RA column name

- **-D** *name*

  DEC column name

- **-t**

  Just use TAN projection, even if SIP extension exists

- **-L**

  Force using WCSlib rather than Astrometry.net routines

- **-r** *ra* **-d** *ra*

  Specify a single point (in deg) to convert (printed to stdout)

- **-v**

  \+verbose

## AUTHOR

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

## SEE ALSO

http://astrometry.net