night_exposure - Man Page

make a single exposure on a camera


night_exposure [-t time] [-s shutter on|off] [-b 1|2|3] [-o output]


The options are as follows:



  exposure time in seconds


  shutter state, on - open, off - close for dark frame


  select region by format: (x1,y1,x2,y2), default: full area


  binning, 1 - 1x1, 2 - 2x2, 3 - 3x3, default: 3


  select chip, I - imaging (default), T - tracking


  readout mode (see output of 'night_power info')


  name of an output file, default to nightview.fits


object's name


observer's name


  show progress indicator


 show progress indicator (on new line)


address:port internet address server, default: local connect

Use Ctrl-C to interrupt the exposure or download in progress.


Setting of environment variable NIGHTVIEW_HOST is equivalent to -host option.

Reporting Bugs


Not found except listed on

See Also

nightview(1). See the /usr/share/doc/nightview-doc directory for description. Homepage:


This manual page was written by F. Hroch <>, for the Debian GNU/Linux system (but may be used by others).


January 2021