InputEnter a date, location and
celestial position to compute
it's rise/transit/set
and culmination data.
DateEnter or pick a date
or use one of the buttons
to set date.
Enter or pick a date.
Set date to today's date.
Set date to culmination date.
Julian DateJulian date for given date,
can be overwritten with custom value.
LatitudeLatitude (in decimal °, southern: negative)
of a terrestrial location.
Enter latitude (in decimal °, southern: negative)
of your or another location or press
the button to use browser coordinates.
Press the button to use browser coordinates
for your location.
LongitudeLongitude (in decimal °, eastern: negative)
of a terrestrial location.
Enter longitude (in decimal °, eastern: negative)
of your or another location or press
the button to use browser coordinates.
Right AscensionRight ascension (in decimal hours)
of a celestial coordinate.
Enter right ascension (in decimal hours)
of a celestial coordinate or
select an object from catalog.
DeclinationDeclination (in decimal °, southern: negative)
of a celestial coordinate.
Enter declination (in decimal °, southern: negative)
of a celestial coordinate or
select an object from catalog.
Compute rise/transit/set times
and culmination date.
FilterFilters can be set to shrink
the selection lists.
TypeInclude only selected object type(s).
DeclinationExclude objects below declination
at the given date at 0:00.
 °Enter declination between 0 and 90°.
BrightnessExclude objects of lower brightness
(higher mag class).
 magEnter magnitude between 0 and 15 mag.
SizeExclude smaller objects than size
(major axis in arc minutes).
 'Enter value between 0 and 200 arc minutes.
Reset all filters.
SelectionSelect an object from
Messier, NGC or IC catalogs.
MessierClick to open, scroll down
and select an entry from Messier catalog.
List content changes, if you apply a filter.
NGCClick to open, scroll down
and select an entry from NGC catalog.
List content changes, if you apply a filter.
ICClick to open, scroll down
and select an entry from IC catalog.
List content changes, if you apply a filter.
Selected ObjectDetail data of object selected
from Messier, NGC or IC catalog.
NameCatalog ID(s) of selected object.
Common NameIf exists, common name
of selected object.
TypeType of selected object.
See type filter for existing types.
Right AscensionRight Ascension (hh:mm:ss.ms) of selected object.
DeclinationDeclination angle (dd:mm:ss.ms) of selected object.
ConstellationConstellation and hemisphere(s), where selected object is located. Constellation map in equirectangular projection:
User:Cmglee, CC BY-SA 3.0, via Wikimedia Commons
0 h3 h6 h9 h12 h15 h18 h21 h+90°+60°+30°0°-30°-60°-90°Right ascensionDeclinationeclipticAndromedaAntliaApusAquariusAquilaAraAriesAurigaBoötesCaelumCamelopardalisCancerCanesVenaticiCanisMajorCanisMinorCapricornusCarinaCassiopeiaCentaurusCepheus - CepheusCetusChamaeleonCircinusColumbaComaBerenicesCoronaAustrinaCoronaBorealisCorvusCraterCruxCygnusDelphinusDoradoDracoEquuleusEridanusFornaxGeminiGrusHerculesHorologiumHydraHydrusIndusLacertaLeoLeoMinorLepusLibraLupusLynxLyraMensaMicroscopiumMonocerosMuscaNormaOctansOphiuchusOrionPavoPegasusPerseusPhoenixPictorPisces PiscesPiscisAustrinusPuppisPyxisReticulumSagittaSagittariusScorpiusSculptorScutumSerpens(Caput)Serpens(Cauda)SextansTaurusTelescopiumTriangulumTriangulumAustraleTucana TucanaUrsaMajorUrsaMinorVelaVirgoVolansVulpeculaAndromedaAntliaApusAquariusAquilaAraAriesAurigaBoötesCaelumCamelopardalisCancerCanesVenaticiCanisMajorCanisMinorCapricornusCarinaCassiopeiaCentaurusCepheus - CepheusCetusChamaeleonCircinusColumbaComaBerenicesCoronaAustrinaCoronaBorealisCorvusCraterCruxCygnusDelphinusDoradoDracoEquuleusEridanusFornaxGeminiGrusHerculesHorologiumHydraHydrusIndusLacertaLeoLeoMinorLepusLibraLupusLynxLyraMensaMicroscopiumMonocerosMuscaNormaOctansOphiuchusOrionPavoPegasusPerseusPhoenixPictorPisces PiscesPiscisAustrinusPuppisPyxisReticulumSagittaSagittariusScorpiusSculptorScutumSerpens(Caput)Serpens(Cauda)SextansTaurusTelescopiumTriangulumTriangulumAustraleTucana TucanaUrsaMajorUrsaMinorVelaVirgoVolansVulpeculaAndromedaAntliaApusAquariusAquilaAraAriesAurigaBoötesCaelumCamelopardalisCancerCanesVenaticiCanisMajorCanisMinorCapricornusCarinaCassiopeiaCentaurusCepheus - CepheusCetusChamaeleonCircinusColumbaComaBerenicesCoronaAustrinaCoronaBorealisCorvusCraterCruxCygnusDelphinusDoradoDracoEquuleusEridanusFornaxGeminiGrusHerculesHorologiumHydraHydrusIndusLacertaLeoLeoMinorLepusLibraLupusLynxLyraMensaMicroscopiumMonocerosMuscaNormaOctansOphiuchusOrionPavoPegasusPerseusPhoenixPictorPisces PiscesPiscisAustrinusPuppisPyxisReticulumSagittaSagittariusScorpiusSculptorScutumSerpens(Caput)Serpens(Cauda)SextansTaurusTelescopiumTriangulumTriangulumAustraleTucana TucanaUrsaMajorUrsaMinorVelaVirgoVolansVulpeculaAndromedaAntliaApusAquariusAquilaAraAriesAurigaBoötesCaelumCamelopardalisCancerCanesVenaticiCanisMajorCanisMinorCapricornusCarinaCassiopeiaCentaurusCepheus - CepheusCetusChamaeleonCircinusColumbaComaBerenicesCoronaAustrinaCoronaBorealisCorvusCraterCruxCygnusDelphinusDoradoDracoEquuleusEridanusFornaxGeminiGrusHerculesHorologiumHydraHydrusIndusLacertaLeoLeoMinorLepusLibraLupusLynxLyraMensaMicroscopiumMonocerosMuscaNormaOctansOphiuchusOrionPavoPegasusPerseusPhoenixPictorPisces PiscesPiscisAustrinusPuppisPyxisReticulumSagittaSagittariusScorpiusSculptorScutumSerpens(Caput)Serpens(Cauda)SextansTaurusTelescopiumTriangulumTriangulumAustraleTucana TucanaUrsaMajorUrsaMinorVelaVirgoVolansVulpeculaAndromedaAntliaApusAquariusAquilaAraAriesAurigaBoötesCaelumCamelopardalisCancerCanesVenaticiCanisMajorCanisMinorCapricornusCarinaCassiopeiaCentaurusCepheus - CepheusCetusChamaeleonCircinusColumbaComaBerenicesCoronaAustrinaCoronaBorealisCorvusCraterCruxCygnusDelphinusDoradoDracoEquuleusEridanusFornaxGeminiGrusHerculesHorologiumHydraHydrusIndusLacertaLeoLeoMinorLepusLibraLupusLynxLyraMensaMicroscopiumMonocerosMuscaNormaOctansOphiuchusOrionPavoPegasusPerseusPhoenixPictorPisces PiscesPiscisAustrinusPuppisPyxisReticulumSagittaSagittariusScorpiusSculptorScutumSerpens(Caput)Serpens(Cauda)SextansTaurusTelescopiumTriangulumTriangulumAustraleTucana TucanaUrsaMajorUrsaMinorVelaVirgoVolansVulpeculaAndromedaAntliaApusAquariusAquilaAraAriesAurigaBoötesCaelumCamelopardalisCancerCanesVenaticiCanisMajorCanisMinorCapricornusCarinaCassiopeiaCentaurusCepheus - CepheusCetusChamaeleonCircinusColumbaComaBerenicesCoronaAustrinaCoronaBorealisCorvusCraterCruxCygnusDelphinusDoradoDracoEquuleusEridanusFornaxGeminiGrusHerculesHorologiumHydraHydrusIndusLacertaLeoLeoMinorLepusLibraLupusLynxLyraMensaMicroscopiumMonocerosMuscaNormaOctansOphiuchusOrionPavoPegasusPerseusPhoenixPictorPisces PiscesPiscisAustrinusPuppisPyxisReticulumSagittaSagittariusScorpiusSculptorScutumSerpens(Caput)Serpens(Cauda)SextansTaurusTelescopiumTriangulumTriangulumAustraleTucana TucanaUrsaMajorUrsaMinorVelaVirgoVolansVulpecula
SizeIf applicable, size (in arc minutes)
of the selected object,
major x minor axis.
MagnitudeIf available, magnitude (in mag)
of the selected object,
v=visual, b=b-band.
Hubble ClassIf applicable, hubble classification of a galaxy.
(credit: ESO, Zooniverse)
IdentifiersIf available, other identifiers of an object.
Rise, Transit and SetCurrent time zone is used, DST adjustment might be required.
Press 'Compute' to update.
RiseLocal rise time at given date.
Circumpolar objects will neither rise nor set.
TransitLocal transit time (highest southern
position) at given date.
Transit DeclinationDeclination at transit time.
SetLocal set time at given date.
Circumpolar objects will neither rise nor set.
CulminationDate and highest position at 0:00 during the year.
Press 'Compute' to update.
DateDate of highest position at 0:00 during the year.
Right AscensionRight Ascension (in hours) for highest position at 0:00 during the year.
DeclinationHighest declination angle (in °) at 0:00 during the year.
AcknowledgementsCelestial program to compute rise, transit, set and culmination of a catalog object by Holger Zimmermann.

Sincerely thanks for following valuable sources of data, information and algorithms goes to:
  • Wikimedia: constellation map (https://commons.wikimedia.org/wiki/File:Constellations,_equirectangular_plot.svg)
  • ESO: Hubble fork (https://supernova.eso.org/exhibition/images/1015_fork-1920/)