Canopus
After Sirius, brightest
Canopus is the second-brightest star in the night sky, located in the southern constellation Carina.
Visible primarily from the Southern Hemisphere, it served as an important navigation star for ancient sailors and remains a reference point for spacecraft orientation systems.
The star was named after a mythological Greek navigator who piloted the ship that carried Helen of Troy to Egypt.
Huge luminous evolved star
- luminosityIntrinsic brightness of source
- magnitudeSize or scale
- whiteAbsence of pigment
- F-typeJaguar sports car
photosphere · brightness · stellar wind · fusion · plasma · light-year · parsec · spectroscopy
Maritime angular measurement device
- celestial navigationLocation-finding via astronomical observation
- bearingPosture or orientation
- latitudeGeographic or personal freedom
- altitudeMeasured height above reference
horizon · meridian · nautical almanac · astrolabe · quadrant · seafaring · mariner · voyaging
Northeastern African nation
- AlexandriaEgyptian Mediterranean port
- PtolemyGreco-Egyptian astronomer, geographer
- OsirisEgyptian afterlife deity
- sunken cityUrban area beneath water
pharaohs · ancient port · Mediterranean · Greek · Roman · archaeology · underwater ruins · trade
Named pattern of celestial bodies
- Southern HemisphereEarth beneath the equator
- circumpolarAround the pole
- Alpha CentauriClosest star system
- CruxSouthern hemisphere constellation
Southern Cross · Magellanic Clouds · celestial equator · declination · visibility
Federal space exploration bureau
- attitude controlRegulating rotational position
- guidance systemDirection-maintaining technology
- probeThorough examination or tool
- Mars missionVoyage to fourth planet
Voyager · sensor · interplanetary · Apollo · orbital mechanics
supergiant
Huge luminous evolved star
- luminosityIntrinsic brightness of source
- magnitudeSize or scale
- whiteAbsence of pigment
F-type · photosphere · brightness · stellar wind · fusion · plasma · light-year · parsec · spectroscopy · astronomy
sextant
Maritime angular measurement device
- celestial navigationLocation-finding via astronomical observation
- bearingPosture or orientation
- latitudeGeographic or personal freedom
altitude · horizon · meridian · nautical almanac · astrolabe · quadrant · seafaring · mariner · voyaging · course
Egypt
Northeastern African nation
- AlexandriaEgyptian Mediterranean port
- PtolemyGreco-Egyptian astronomer, geographer
- OsirisEgyptian afterlife deity
sunken city · pharaohs · ancient port · Mediterranean · Greek · Roman · archaeology · underwater ruins · trade · papyrus
constellation
Named pattern of celestial bodies
- Southern HemisphereEarth beneath the equator
- circumpolarAround the pole
- Alpha CentauriClosest star system
Crux · Southern Cross · Magellanic Clouds · celestial equator · declination · visibility
NASA
Federal space exploration bureau
- attitude controlRegulating rotational position
- guidance systemDirection-maintaining technology
- probeThorough examination or tool
Mars mission · Voyager · sensor · interplanetary · Apollo · orbital mechanics
CanopusPolaris
Celestial north marker
North Star · Vega · Capella · Arcturus · Deneb