Easter Egg: List Most Probable Constellations (ligo-skymap-constellations)

List most likely constellations for a localization.

Just for fun, and for public outreach purposes.

usage: ligo-skymap-constellations [-h] [--version]
                                  [-l CRITICAL|ERROR|WARNING|INFO|DEBUG|NOTSET]
                                  [-o OUT.dat]
                                  [INPUT.fits[.gz]]

Positional Arguments

INPUT.fits[.gz]

Input FITS file

Default: -

Named Arguments

--version

show program’s version number and exit

-l, --loglevel

Default: INFO

-o, --output

Name of output file

Default: -

To list the most probable constellations for GW170817:

$ curl -O https://dcc.ligo.org/public/0146/G1701985/001/bayestar.fits.gz
$ ligo-skymap-constellations bayestar.fits.gz

0.49372269756706605  Virgo
0.31327241872626527  Corvus
0.1806012308409065   Hydra
0.012273063139920255 Centaurus
7.33302173347542e-05 Lupus
2.0124397034626024e-05       Taurus
1.607777623406115e-05        Circinus
1.1847507101258453e-05       Leo Minor
4.801076976240868e-06        Apus
1.3453783636882628e-06       Auriga
1.1268223149776268e-06       Octans
1.0061694481116907e-06       Triangulum Australe
5.674617238901326e-07        Lynx
3.3689975342661287e-07       Leo
2.202701360022312e-08        Cetus
3.4858172839407564e-09       Eridanus
2.6653058899772474e-10       Tucana
2.0926237030447548e-10       Ursa Major
1.523794259929362e-11        Indus
1.1852612764294879e-11       Coma Berenices
3.7753942225276276e-12       Perseus
7.233182922297495e-14        Hydrus
1.8928276524970434e-15       Aries
1.806934635454502e-17        Pavo
1.0647849818860385e-17       Fornax
1.3310266267130931e-18       Norma
4.6320972661082874e-23       Cancer
4.0130685715837047e-23       Gemini
6.790291479923671e-25        Ara
3.7764700790357345e-25       Musca
2.639996865100319e-28        Phoenix
5.780653404806961e-31        Crater
1.808312000338703e-31        Chamaleon
7.113935406971093e-35        Sculptor
7.794034729999757e-40        Canis Major
3.002828370601988e-40        Orion
2.8836795827752243e-40       Vulpecula
1.2296371584055717e-40       Horologium
1.123897670645498e-40        Sagitta
9.996341027424896e-41        Libra
8.540285308176656e-41        Lyra
3.641656312609553e-41        Hercules
3.4677979351969684e-41       Pisces
3.2810345132622196e-41       Puppis
3.0667887873006756e-41       Aquila
2.2835674607055147e-41       Monoceros
7.913013196981244e-42        Cygnus
6.929615805137575e-42        Ophiucus
5.375566642109065e-42        Boötes
7.55551462044855e-43 Serpens
5.407878461019846e-44        Delphinus
1.1364378339902471e-44       Columba
7.819373074697878e-45        Canes Venatici
4.2105730126666225e-45       Lepus
1.9531486764615627e-45       Scutum
1.4708796040109254e-45       Pyxis
1.2704687538073003e-45       Camelopardalis
5.360929060573291e-46        Sagittarius
2.075911655160898e-46        Canis Minor
8.481094210479841e-48        Aquarius
7.705001075439435e-48        Mensa
5.103078925278023e-48        Capricornus
1.5173542236819764e-49       Microscopium
7.560358027520032e-50        Vela
6.946478828114356e-51        Draco
1.5475583515525288e-51       Corona Borealis
3.985453510500382e-52        Equuleus
3.939003447554475e-52        Crux
2.0358475122510653e-52       Pictor
1.2276558370479365e-52       Telescopium
5.423426832655179e-53        Scorpius
3.0014643319394047e-53       Triangulum
1.0712303738745325e-53       Pegasus
2.5770407860180895e-54       Carina
1.8380418856152116e-54       Corona Australis
6.490109434373655e-55        Caelum
2.582893153639923e-55        Grus
6.508267657854811e-56        Cepheus
6.978538846136061e-57        Andromeda
1.3501808258168752e-57       Sextans
8.473375548551851e-58        Ursa Minor
6.233211200719527e-59        Pisces Austrinus
3.756361457050049e-59        Cassiopeia
1.3653977982548696e-60       Dorado
1.1435513819465776e-60       Volans
6.268628976830198e-64        Reticulum
1.7967538027310186e-68       Lacerta
4.6830227320478515e-85       Antlia