Proposed features/Observatory

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Instrument designed for the observation of remote objects by the collection of electromagnetic radiation.

Telescope / Observatory
Status: Proposed (under way)
Proposed by: Bass
Tagging: man_made=telescope / landuse=observatory
Applies to: nodes / areas
Definition: A building/place containing a telescope for observing objects
Rendered as: Radio Dish proposal Observatory Dome proposal
Drafted on:
Proposed on: 2008-03-23

Proposal-update:2008-04-24 Bass, 2008-09-18 Bass, 2009-09-08 Bass

An observatory with an optical telescope

Proposal

From http://en.wikipedia.org/wiki/Observatory

An observatory is a location used for observing terrestrial and/or celestial events. Astronomy, climatology/meteorology, geology, oceanography and volcanology are examples of disciplines for which observatories have been constructed. Historically, observatories were as simple as containing an astronomical sextant (for measuring the distance between stars) or Stonehenge (which has some alignments on astronomical phenomena).


From http://en.wikipedia.org/wiki/Telescope

A telescope is an instrument designed for the observation of remote objects by the collection of electromagnetic radiation. The first known practically functioning telescopes were invented in the Netherlands at the beginning of the 17th century. "Telescopes" can refer to a whole range of instruments operating in most regions of the electromagnetic spectrum.


This tag should cover all size ranges: from small, school/non-profit 'neighbourhood' observatories (Volkssternwarte) to large scale multi telescope scientific installations.

Rationale

  • Observatories are significant buildings often built on exposed places and therefore could help in navigation.
  • There's one in my neighbourhood i want to tag.

Examples

Definition

  • An observatory site Area contains none/one/multiple telescopes Node.
    • Observatory sites could also be marked with a node only when the mapper is lazy or has no better information available.
    • Of course it's allowed to tag the Arecibo telescope as an area :D
  • There are observatories with only one individual telescope (usually a smaller dome / private one) where a landuse=observatory tag is not appropriate.
  • There are observatory sites without any telescope (e.g. meteorological station).


Tagging

Simple tagging

Node telescope Observatory dome 32x32.svg Astronomical observatory b06.svg Astronomical observatory05.svg

 man_made=telescope
 name=

Node radio telescope Radio telescope 32x32 bw.svg

 man_made=radio telescope
 name=


Area observatory

 landuse=observatory
 name=

Node observatory

  • man_made=observatory

Conflicts with man_made=telescope! Should be avoided, see Problematic tagging variants

Makes only really sense if there is no scope at all at the observatory site and one is unable to map the area.

Advanced telescope tagging

Node telescope properties

 telescope:diameter=                      specify a number in meters, eg: 12.3
 operator=
 access=private|public|amateur            defaults to 'private'
 telescope:type=optical                   defaults to 'optical'
 telescope:type=radio
 telescope:type=gamma                     gamma-ray astronomy, e.g. MAGIC telescope
 telescope:type=radar                     radar astronomy
 telescope:type=infrared                  infrared astronomy, e.g. IRTF on Mauna Kea
 telescope:type=x-ray
 telescope:type=

Of course, if needed, even more exact tagging is always allowed:

 telescope:spectrum=                      wavelength, e.g. 9.9583745μm-12.0000000μm
 telescope:type=gravitational
 telescope:usage=seti
 telescope:usage=espionage
 telescope:usage=echelon
 telescope:usage=onyx
 telescope:usage=

Advanced observatory tagging

Area (Node) observatory properties

 observatory:type=astronomical            this is mostly the case and therefore default
 observatory:type=meteorological
 observatory:type=volcanological
 observatory:type=geological
 observatory:type=gravitational
 observatory:type=neutrino
 observatory:type=espionage
 observatory:type=
 operator=
 access=private|public                    defaults to 'private'

Problematic/Unusual tagging variants

  • Node man_made=observatory
    • Conflicts with man_made=telescope.
    • Used for small telescopes, one building (observatory), one scope.
    • Sometimes used, when a mapper quickly adds a POI. Problematic if more information gets added.
    • It is always better to add a Area landuse=observatory, even it is on the building containing Node man_made=telescope.
    • Totally reasonable for meteorological stations, where there is no scope.
  • Area man_made=telescope
    • Yeah, Arecibo deserves it :D
  • Area landuse=telescope
    • You Arecibo guys can tag the way you like!
    • Should not be used for installations like the One Hectare Telescope. This one reserved for Arecibo :D
  • Area man_made=observatory
    • Simply wrong, use landuse=observatory


Rendered As

Icons (proposed)

  • a radio dish: Radio Dish proposal
  • observatory dome icon: Observatory Dome proposal

Areas (proposed)

Observatory graphical view.jpg

The area should not be blue, a gray like other landuses is better.

Existing sites in OSM

Discussion

Discussion moved to the discussion page.

JOSM Presets

JOSM presets for observatories are available via the built-in function by downloading the preset file.

Voting

not open yet