Statements (281)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:Giant
gptkb:star |
| gptkbp:age |
approximately 1 million years
around 1 million years |
| gptkbp:apparent_magnitude |
-1.7
-1.5 -12.0 approximately -1.5 approximately 6.8 |
| gptkbp:associated_person |
gptkb:NGC_3372
|
| gptkbp:average_temperature |
around 30,000 K
30,000 K approximately 30,000 K |
| gptkbp:brightness_peak |
reached peak brightness in 1843
|
| gptkbp:companion_star |
gptkb:Eta_Carinae_B
|
| gptkbp:constellation |
gptkb:Carina
|
| gptkbp:contains |
the Homunculus Nebula
|
| gptkbp:contains_star |
gptkb:Eta_Carinae_B
gptkb:Yes gptkb:true likely a massive star |
| gptkbp:cosmic_distance_scale |
important for measuring distances
used in cosmic distance scale studies |
| gptkbp:discovered_by |
gptkb:John_Herschel
1837 |
| gptkbp:discovery |
discovered in the 17th century
|
| gptkbp:discovery_year |
1837
|
| gptkbp:distance |
approximately 7,500 light-years
approximately 7500 light years measured using parallax methods |
| gptkbp:distance_from_earth |
approximately 7,500 light years
7,500 light years |
| gptkbp:emissions_standard |
strong emission lines in spectrum
|
| gptkbp:evolutionary_stage |
post-main sequence
|
| gptkbp:exhibition |
gptkb:John_Flamsteed
|
| gptkbp:has_astrophysical_model |
used in models of stellar evolution
|
| gptkbp:has_astrophysical_significance |
important for understanding star formation processes
|
| gptkbp:has_been_studied_since |
the 19th century
|
| gptkbp:has_binary_companion |
gptkb:Eta_Carinae_B
|
| gptkbp:has_brightness_variation |
gptkb:true
significant brightness variation |
| gptkbp:has_color |
B-V = -0.33
|
| gptkbp:has_component |
gptkb:Eta_Carinae_B
gptkb:Eta_Carinae_A gptkb:Yes |
| gptkbp:has_distance_measurement_method |
parallax
|
| gptkbp:has_ejecta |
massive outbursts
|
| gptkbp:has_high_energy_emission |
gptkb:Yes
gptkb:true |
| gptkbp:has_historical_significance |
noted by astronomers for centuries
noted in 19th century observations |
| gptkbp:has_luminosity |
5 million solar luminosities
approximately 5 million solar luminosities approximately 5 million times that of the Sun over 5 million times that of the Sun |
| gptkbp:has_mass_loss_rate |
high mass loss rate
|
| gptkbp:has_nebula |
gptkb:Homunculus_Nebula
|
| gptkbp:has_radius |
approximately 100 times that of the Sun
|
| gptkbp:has_research_focus |
stellar winds and mass loss
|
| gptkbp:has_significant_mass_loss |
during outbursts
|
| gptkbp:has_spectral_type |
O-type star
O2-3 If* O-type and B-type stars |
| gptkbp:has_spectroscopic_observation |
detailed spectroscopic studies
|
| gptkbp:has_spectroscopic_observations |
gptkb:Yes
gptkb:true |
| gptkbp:has_supernova |
gptkb:Yes
gptkb:true |
| gptkbp:has_variability_period |
irregular
5.5 years |
| gptkbp:has_variations |
gptkb:Luminous_Blue_Variable
due to eruptions irregular variability due to pulsations |
| gptkbp:hertzsprung-russell_diagram |
located in the upper left region
located in the upper left of the HR diagram |
| gptkbp:historical_significance |
one of the most massive stars known
notable in astronomy history |
| https://www.w3.org/2000/01/rdf-schema#label |
Eta Carinae
|
| gptkbp:hubble_observations |
imaged by Hubble Space Telescope
|
| gptkbp:is_a |
gptkb:Luminous_Blue_Variable
gptkb:Giant gptkb:hypergiant_star gptkb:star spectroscopic binary stellar nursery astrophysical phenomenon variable star system spectroscopic binary star luminous blue variable star massive binary star system massive star system massive binary system massive luminous star massive stellar remnant stellar object of interest supernova progenitor candidate luminous star system massive stellar object |
| gptkbp:is_a_subject_of |
many astronomical studies
|
| gptkbp:is_approximately |
7500 light years away from Earth
7500 light years away |
| gptkbp:is_associated_with |
massive star formation
star formation regions stellar winds stellar nurseries gamma-ray emissions massive star clusters massive star formation regions massive stellar winds the Eta Carinae star system the Homunculus Nebula's formation |
| gptkbp:is_considered |
a potential supernova candidate
one of the most massive stars known one of the most massive star systems known a prototype of Luminous Blue Variables a prototype for Luminous Blue Variables |
| gptkbp:is_considered_as |
prototype of luminous blue variables
|
| gptkbp:is_explored_in |
studied in various wavelengths
|
| gptkbp:is_in |
gptkb:the_Milky_Way_galaxy
gptkb:Milky_Way_galaxy the list of most luminous stars the Milky Way's star-forming region |
| gptkbp:is_involved_in |
massive star formation
stellar evolution studies massive star evolution |
| gptkbp:is_known_for |
gptkb:Great_Eruption
its complex structure extreme luminosity its variability in brightness its irregular light curve its massive outbursts massive outbursts its extreme brightness fluctuations its dramatic outbursts its complex light curve its extreme brightness its outbursts its unique spectral characteristics |
| gptkbp:is_located_at |
right ascension 10h 45m 3s
declination -59° 41' 4" declination -59° 41' 4'' right ascension 10h 45m 3.2s |
| gptkbp:is_located_in |
gptkb:Carina_constellation
gptkb:the_Milky_Way_galaxy |
| gptkbp:is_monitored_by |
various observatories
changes in brightness |
| gptkbp:is_noted_for |
its complex structure
|
| gptkbp:is_observed_in |
gptkb:Hubble_Space_Telescope
various telescopes infrared wavelengths multiple wavelengths various wavelengths including infrared and radio |
| gptkbp:is_one_of |
most massive stars known
|
| gptkbp:is_part_of |
gptkb:Carina_Nebula
gptkb:Eta_Carinae_Nebula gptkb:Carina_constellation gptkb:the_Milky_Way_galaxy gptkb:Carina-Sagittarius_Arm gptkb:star gptkb:Milky_Way_galaxy Giant Molecular Cloud the local group of stars the Carina constellation the Carina-Sagittarius Arm the Milky Way's star-forming regions a binary system the Milky Way's stellar population the Carina Nebula the Carina Nebula complex the Milky Way's Carina spiral arm the larger Carina Nebula complex the Carina constellation's notable stars the Carina Nebula's structure |
| gptkbp:is_studied_for |
stellar dynamics
stellar evolution stellar winds its role in galactic ecology its outflowing material its role in the evolution of massive stars its mass loss rates |
| gptkbp:is_studied_in |
gptkb:Hubble_Space_Telescope
astrophysics astronomers worldwide its role in stellar evolution |
| gptkbp:is_surrounded_by |
gptkb:Homunculus_Nebula
gptkb:Carina_Nebula nebulae dust clouds dense gas and dust |
| gptkbp:is_visible_from |
Southern Hemisphere
naked eye southern hemisphere the infrared spectrum with the naked eye southern hemisphere night sky |
| gptkbp:last_eruption |
19th century eruption
|
| gptkbp:light_curve |
irregular light curve
|
| gptkbp:light_echo |
light echoes observed from eruptions
|
| gptkbp:light_variability |
exhibits light variability over years
|
| gptkbp:light_years |
7,500 light-years away from Earth
|
| gptkbp:lighting |
gptkb:true
visible to the naked eye high variability irregular light curve varies significantly over time detectable X-ray emissions |
| gptkbp:located_in |
gptkb:Carina_constellation
|
| gptkbp:location |
southern hemisphere
|
| gptkbp:mass |
approximately 100 times that of the Sun
100 solar masses approximately 100 solar masses over 100 solar masses |
| gptkbp:mass_loss_rate |
high mass loss rate
|
| gptkbp:massive_star |
yes
one of the most massive stars in the Milky Way |
| gptkbp:massive_star_binaries |
example of massive star binaries
|
| gptkbp:massive_star_evolution |
key example of massive star evolution
|
| gptkbp:massive_stellar_explosion |
potential supernova candidate
|
| gptkbp:nebula |
surrounded by the Homunculus Nebula
|
| gptkbp:notable_event |
gptkb:Great_Eruption_of_1843
gptkb:Great_Eruption_of_1840s Great Eruption in the 19th century |
| gptkbp:notable_feature |
gptkb:Great_Eruption
extensive stellar wind |
| gptkbp:notable_for |
being one of the most massive star systems known
|
| gptkbp:observational_challenges |
difficult to observe due to brightness fluctuations
|
| gptkbp:observational_data |
variable star observations
observed by Hubble Space Telescope |
| gptkbp:observational_period |
monitored for over a century
|
| gptkbp:observed_variability |
observed variability in brightness
|
| gptkbp:orbital_period |
not well defined due to variability
|
| gptkbp:photography |
various space telescopes
|
| gptkbp:photometric_study |
extensive photometric studies conducted
|
| gptkbp:photometric_variability |
exhibits photometric variability
|
| gptkbp:research |
observed with ground-based telescopes
studied through spectroscopy spectroscopic studies reveal composition |
| gptkbp:research_importance |
important for understanding massive star evolution
|
| gptkbp:research_interest |
subject of ongoing research
|
| gptkbp:significance |
one of the most massive stars known
|
| gptkbp:sparked |
gptkb:multiple_times
multiple times in the past |
| gptkbp:stellar_activity |
high stellar activity
|
| gptkbp:stellar_chemistry |
unique chemical composition studied
|
| gptkbp:stellar_class |
massive and luminous stars
|
| gptkbp:stellar_classification |
LBV (Luminous Blue Variable)
|
| gptkbp:stellar_ejecta |
produces significant stellar ejecta
ejecta from past eruptions observed |
| gptkbp:stellar_environment |
complex stellar environment
|
| gptkbp:stellar_evolution |
in a late stage of evolution
rapidly evolving star |
| gptkbp:stellar_exploration |
target for future stellar exploration missions
|
| gptkbp:stellar_formation |
formed in a star-forming region
|
| gptkbp:stellar_interaction |
interacting with surrounding gas and dust
|
| gptkbp:stellar_lifetime |
short stellar lifetime expected
|
| gptkbp:stellar_mass_loss |
significant mass loss over time
significant mass loss during eruptions |
| gptkbp:stellar_morphology |
complex morphology observed in images
|
| gptkbp:stellar_nursery |
part of a stellar nursery
|
| gptkbp:stellar_phenomena |
exhibits various stellar phenomena
|
| gptkbp:stellar_physics |
important for studies in stellar physics
|
| gptkbp:stellar_population |
part of a young stellar population
part of a rich stellar population |
| gptkbp:stellar_system |
gptkb:star
part of a binary system |
| gptkbp:stellar_wind |
strong stellar wind
strong stellar wind observed |
| gptkbp:stellar_wind_speed |
up to 3,000 km/s
|
| gptkbp:stellar_wind_strength |
strong stellar wind observed
|
| gptkbp:storage |
extensive photometric data available
|
| gptkbp:takeoff_distance |
ejects material into space
|
| gptkbp:type |
gptkb:Luminous_Blue_Variable
gptkb:star luminous blue variable |
| gptkbp:type_of |
luminous blue variable
massive star system |
| gptkbp:variability |
highly variable
|
| gptkbp:variable_star |
yes
|
| gptkbp:bfsParent |
gptkb:Carina_Nebula
|
| gptkbp:bfsLayer |
4
|