Comet Halley

Feedback
2010-08-01
2014-10-03
  • Robin Rowland
    Robin Rowland
    2010-08-01

    I am wondering if there is a plug-in that can track Comet Halley? For current
    astronomers it won't be back for another 50 or so years, :- ) but it's
    regularity should make it easy ( I hope) to track if there isn't a current
    plug-in,

    My interest is as an author, since I'd like to use Stellarium to help build a
    story built around Halley''s return around 2517 or so, and as seen from
    various parts of the world. Such a plugin could also be used for historical
    appearances. in the past (say over Hastings in 1066 as seen in the
    tapestry???)

    I know from other posts that people who contribute are busy, but it would be
    great if someone could create this over the next few months (since my writing
    project will take at least until the spring)

    I really like the program and when I move from Toronto to northern BC in the
    next few weeks when skies are sometimes clear, I certainly will use it when I
    do start more regular stargazing

    Robin Rowland

     
  • barrykgerdes
    barrykgerdes
    2010-08-01

    Hi Robin

    Halley's comet data has been supplied a number of times:

    In your stellarium/data folder there is a file called ssystem.ini. You can
    edit it with a text editor
    Look at the format for other comets and add this data

    name = P/Halley
    parent = Sun
    radius = 100
    oblateness = 0.0
    halo = false
    color = 1.0,1.0,1.0
    tex_halo = star16x16.png
    tex_map = nomap.png
    coord_func = comet_orbit
    orbit_TimeAtPericenter = 2446470.959
    orbit_PericenterDistance = .5871
    orbit_Eccentricity = 0.967277
    orbit_ArgOfPericenter = 111.8466
    orbit_AscendingNode = 58.1434
    orbit_Inclination = 162.23
    lighting = false
    albedo = 1
    sidereal_period = 27403

    Be careful with syntax. An error could cause stellarium to not start.

    Barry

     
  • Michael
    Michael
    2010-08-12

    Hi Barry,

    I added your Halley data, too. I used copy and paste and I saved the
    ssystem.ini file. When I start stellarium and open the search field to put
    Halley in the field: nothing happened, that is after typing h I got several
    stars etc. to choose but not Halley. After typing the additional letters al
    the field to choose from remains empty. So I must have done something wrong,
    but what?

    Michael

     
  • barrykgerdes
    barrykgerdes
    2010-08-12

    Hi Michael
    You need to search by the name you have given the comet.
    The second line in the data is the name. In this case P/Halley
    A search for P/Halley will find it.

    Barry

     
  • Michael
    Michael
    2010-08-13

    Hi Barry,

    thanks again, it does work. Do you have any hint where to find similar data
    for Swift-Tuttle?

    Michael

     
  • Michael
    Michael
    2010-08-13

    How can I find the IAU names of stars, polaris, e.g. in order to feed the
    Horizon database?

    Michael

     
  • Bogdan Marinov
    Bogdan Marinov
    2010-08-13

    I'm not sure I understand your question. HORIZONS is a database of solar
    system objects. You can't find any stars with it.

     
  • Michael
    Michael
    2010-08-13

    Oh, I'm sorry, I missed that.
    But anyway; is there any online-catalogue for stars that one can find the
    (IAU) name and declination/right ascension?

     
  • Bogdan Marinov
    Bogdan Marinov
    2010-08-14

    I don't know whether the IAU uses some standardized star names. You can use
    the SIMBAD database - it recognizes many different star designations:
    http://simbad.u-strasbg.fr/simbad/

    Stellarium uses implicit search in SIMBAD if you have an internet connection.
    It only centres the view at the returned coordinates, though.

     

  • Anonymous
    2013-09-24

    Hi Barry,
    I am using Stellarium 0.12.3 win32 on my Windows 7 32 bit PC. I want to add Halley's comet in Stellarium. Can you help me do so? I need this urgently for my project. I need to record observations.
    Palash

     
  • barrykgerdes
    barrykgerdes
    2013-09-24

    You will need to add the orbit parameters to the ssystem.ini file as described earlier in this thread.

    Barry

     

  • Anonymous
    2014-10-02

    If you're doing this with more modern versions of Stellarium, first copy ssystem.ini to your local stellarium directory.

    cp /usr/share/stellarium/data/ssystem.ini ~/.stellarium/data/

    and then do pretty much what the other Barry suggests, but add "[halley]" to it:

    [halley]
    name = Halley
    parent = Sun
    radius = 100
    oblateness = 0.0
    halo = false
    color = 1.0,1.0,1.0
    tex_halo = star16x16.png
    tex_map = nomap.png
    coord_func = comet_orbit
    orbit_TimeAtPericenter = 2446470.959
    orbit_PericenterDistance = .5871
    orbit_Eccentricity = 0.967277
    orbit_ArgOfPericenter = 111.8466
    orbit_AscendingNode = 58.1434
    orbit_Inclination = 162.23
    lighting = false
    albedo = 1
    sidereal_period = 27403

    See also: https://github.com/barrycarter/bcapps/blob/master/ASTRO/ssystem.ini#L691

     


Anonymous


Cancel   Add attachments