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

# astrometry-engine(1)

Identify where a list of stars is on the sky

## NAME

astrometry-engine - Identify where a list of stars is on the sky

## SYNOPSIS

**astrometry-engine** \[options\] *file* \[...\]

## DESCRIPTION

This does the actual work of identifying where the list of stars is on the sky. It is run by solve-field.

## OPTIONS

- **-h**, **--help**

  Print help

- **-v**, **--verbose**

  Be verbose

- **-c**, **--config** *file*

  Use this config file (default: "/etc/astrometry.cfg"); "none" for no config file

- **-d**, **--base-dir** *dir*

  Set base directory of all output filenames.

- **-C**, **--cancel** *file*

  Quit solving if this file appears

- **-s**, **--solved** *file*

  Write to this file when a field is solved

- **-E**, **--to-stderr**

  Send log message to stderr

- **-f**, **--inputs-from** *file*

  Read input filenames from the given file, "-" for stdin

- **-i**, **--index** *file(s)*

  Use the given index files (in addition to any specified in the config file); put in quotes to use wildcards, eg: "**-i** 'index-\*.fits'"

- **-p**, **--in-parallel**

  Run the index files in parallel

- **-D**, **--data-log** file *file*

  Log data to the given filename

## AUTHOR

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

## SEE ALSO

http://astrometry.net