Provided by: xscreensaver-gl-extra_5.45+dfsg1-2ubuntu1_amd64 

NAME
deepstars - screen saver.
SYNOPSIS
deepstars [-display host:display.screen] [-visual visual] [-window] [-root] [-delay number] [-speed
number] [-smear number]
DESCRIPTION
A long exposure of the night sky, showing star paths as vapor trails.
OPTIONS
-visual visual
Specify which visual to use. Legal values are the name of a visual class, or the id number
(decimal or hex) of a specific visual.
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
-delay number
Per-frame delay, in microseconds. Default: 30000 (0.03 seconds).
-speed number
Animation speed. 2.0 means twice as fast, 0.5 means half as fast.
-smear number
How long the vapor trails should be. 2.0 means twice as long, 0.5 means half as long.
ENVIRONMENT
DISPLAY to get the default host and display number.
XENVIRONMENT
to get the name of a resource file that overrides the global resources stored in the
RESOURCE_MANAGER property.
SEE ALSO
X(1), xscreensaver(1)
COPYRIGHT
Copyright © 2019 by Jamie Zawinski. Permission to use, copy, modify, distribute, and sell this software
and its documentation for any purpose is hereby granted without fee, provided that the above copyright
notice appear in all copies and that both that copyright notice and this permission notice appear in
supporting documentation. No representations are made about the suitability of this software for any
purpose. It is provided "as is" without express or implied warranty.
AUTHOR
Jamie Zawinski.
X Version 11 5.45 (08-Dec-2020) deepstars(6x)