Artificial satellites around the Earth are a new form of light
pollution. Those on low-earth orbits can be especially bright.
Companies plan to launch tens of thousands of such satellites, and our
view of the night sky, constellations and the Milky Way may be entirely
lost. Please sign the following petition, and share it with your friends (and
ask them to sign and share).
SpaceX satellites marching through the sky from Brazil,
late 2019. Note that the satellites are brighter than the brightest
stars. Photo by Egon Filter.
Petition
EN. Here is a
petition against spoiling the night sky. Please consider signing and
sharing it. Same thing in PDF version.
HUN. Itt a :
petíció magyarul. Kérlek írjad alá, osszad meg, és kérjed, hogy akik
megkapják, tegyék ugyanezt!
SpaceX decided to
paint one of their satellites black.
Yes, ONE of the satellites.
In my mind, this is a step in the right direction, but is the smallest
possible infinitesimal step. They could have painted all black, and
there are many other things one could do to eliminate their impact on
the night sky.
National Parks are the best places for observing the night sky,
as also stated in
this news release by the international dark sky association
.
Yet, the beauty of the night sky will be lost from these dark sky parks
once the sky is full of satellites.
Coverage by
Sky and Telescope.
Yet, the beauty of the night sky will be lost from these dark sky parks
once the sky is full of satellites.
Coverage by BBC , quoting OneWeb placing fewer
satellites and at higher elevations (1200km) on purpose, not to hurt
the night sky.
Article by Sir Martin Rees.
Quoting the best paragraph:
But we shouldn’t forget that it’s not just astronomers – a minority –
who care about this issue. The night sky, the “vault of heaven”, is the
one feature of our environment that has been shared, and wondered at,
by all humanity through the ages. We should deplore anything that
needlessly degrades its beauty and serenity, just as, more parochially,
we don’t want tinsel or phone masts in our national parks.
Some recent news
on the launch of another 60 SpaceX satellites on Jan 6, 2020.
Article in the
Atlantic,
with contribution from Kris Stanek, Ohio State University.
A new, objective (but somewhat soft)
IAU statement from 2020 February,
saying that "The IAU considers the consequences of satellite constellations
worrisome", and "A great deal of attention is also being given to the protection of the uncontaminated view of the night sky from dark places, which should be considered a non-renounceable world human
heritage."
SpaceX satellites crossing the sky as seen by the
Global Meteor Network
from Farra Observatory, Italy. Stars trail in the back from the lower
left to the upper right.
SpaceX satellites crossing the sky as seen by the
Global Meteor Network
from La Palma, Canary Islands. Stars trail in the back on arcs.
La Palma enjoys strong protection against light pollution, but
the law is not prepared for light pollution from space.
SpaceX satellites crossing the image of an astronomical camera at
Lowell Observatory.
SpaceX satellites crossing the image of an astronomical camera
from Hungary (credit Robert Fidrich).
SpaceX satellites on a suburban sky. Images by mars_stu@twitter.
SpaceX satellites on a suburban sky. Images by mars_stu@twitter.
SpaceX satellites on Dec 26, 2019. Photo by Mónika Landy-Gyebnár.
Please send you comments, photos, links to gbakos at astro.princeton.edu.