Statements (174)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:galaxy
gptkb:star |
| gptkbp:apparent_magnitude |
8.4
|
| gptkbp:body_shape |
gptkb:active_galactic_nucleus
yes active star formation cigar-shaped |
| gptkbp:composed_of |
varied metallicity
|
| gptkbp:conducts_research_on |
galactic dynamics
|
| gptkbp:contains |
young stars
young massive stars |
| gptkbp:contains_star |
gptkb:M81
gptkb:M81_Group gptkb:spiral_galaxy numerous many globular clusters 10 times that of the Milky Way numerous young star clusters 10 solar masses per year superbubbles active star formation history numerous star formation regions |
| gptkbp:coordinates |
l = 140.0°, b = 60.0°
|
| gptkbp:declination |
+69° 40' 47"
|
| gptkbp:diameter |
approximately 11,000 light years
11,000 light years approximately 37,000 light-years 37,000 light-years |
| gptkbp:discovered_by |
gptkb:Hermann_von_Helmholtz
gptkb:William_Herschel |
| gptkbp:distance_from_earth |
12 million light-years
12 million light years |
| gptkbp:exhibition |
gptkb:Messier_catalog
|
| gptkbp:exhibits |
strong infrared emission
|
| gptkbp:features |
strong infrared emissions
|
| gptkbp:has |
gptkb:interstellar_medium
supernovae star clusters a complex structure high surface brightness HII regions outflows of gas a prominent dust lane a variety of stellar populations a prominent central bulge a complex star formation history a high luminosity in the infrared spectrum a high metallicity in its star-forming regions a high rate of star formation activity a high rate of supernova explosions a large number of blue supergiants a significant amount of dust and gas a significant amount of molecular gas a significant amount of stellar mass loss a significant population of Wolf-Rayet stars a unique morphology due to interactions with M81 a unique star formation environment numerous star-forming regions a high concentration of star formation in its central region |
| gptkbp:has_active_region |
central region
|
| gptkbp:has_active_star_formation |
gptkb:true
|
| gptkbp:has_color |
gptkb:blue
B-V = 0.5 B-V = 0.8 B-V: 0.5 |
| gptkbp:has_companion |
gptkb:M81
|
| gptkbp:has_dust_lane |
prominent dust lane
|
| gptkbp:has_feature |
prominent dust lane
|
| gptkbp:has_features |
gptkb:galaxy
cylindrical shape cigar-shaped |
| gptkbp:has_galactic_interaction |
with M81
|
| gptkbp:has_gravitational_effects |
on nearby galaxies
|
| gptkbp:has_historical_significance |
notable for supernova observations
|
| gptkbp:has_luminosity |
approximately 100 times that of the Milky Way
|
| gptkbp:has_relationship_with |
gptkb:M81_galaxy
|
| gptkbp:has_spectral_type |
SAB(rs)bc
Sbc S0 IBm |
| gptkbp:has_supernova |
gptkb:SN_2014_J
|
| https://www.w3.org/2000/01/rdf-schema#label |
M82
|
| gptkbp:interacts_with |
gptkb:M81
|
| gptkbp:is |
a galaxy that has been observed in various wavelengths
one of the brightest galaxies in the sky a site of intense star formation a popular target for astronomers a galaxy that contributes to our understanding of cosmic evolution a target for studying the effects of galactic winds a subject of interest for studying galaxy interactions a galaxy that has been extensively mapped in radio frequencies a galaxy with a high star formation efficiency a key object in understanding starburst phenomena a member of the M81 group of galaxies a prototype of starburst galaxies a subject of many astrophysical studies an example of a galaxy undergoing rapid evolution edge-on galaxy often compared to the Milky Way in studies often referred to as the Cigar Galaxy often studied in relation to galaxy evolution a galaxy that has undergone significant morphological changes visible in both optical and radio wavelengths a galaxy that exhibits signs of gravitational interactions a galaxy that provides insights into the lifecycle of galaxies. |
| gptkbp:is_affected_by |
tidal interactions
interactions with M81 |
| gptkbp:is_associated_with |
cosmic rays
starburst activity |
| gptkbp:is_in |
gptkb:Northern_Hemisphere
|
| gptkbp:is_known_for |
its elongated shape
intense star formation starburst phenomenon |
| gptkbp:is_located_at |
Declination +69° 40′ 47″
Right Ascension 9h 55m 52.8s RA 9h 55m 52s, Dec +69° 40′ 47″ |
| gptkbp:is_located_near |
gptkb:M81
|
| gptkbp:is_observed_in |
gptkb:Hubble_Space_Telescope
Hubble Space Telescope images radio wavelengths infrared wavelengths observed in infrared |
| gptkbp:is_part_of |
gptkb:Laniakea_Supercluster
gptkb:M81-M82_system gptkb:M81_group gptkb:M81_Group gptkb:M81_group_of_galaxies gptkb:Local_Group gptkb:Local_Group_of_galaxies large scale structure of the universe M81 constellation |
| gptkbp:is_studied_for |
gptkb:cosmology
galaxy evolution |
| gptkbp:is_studied_in |
gptkb:astronomy
astrophysics |
| gptkbp:is_used_in |
galaxy formation studies
|
| gptkbp:is_visible_from |
yes
optical wavelengths with binoculars with small telescopes |
| gptkbp:known_as |
gptkb:Cigar_Galaxy
|
| gptkbp:lighting |
magnitude 8.4
detected high surface brightness |
| gptkbp:located_in |
constellation Ursa Major
Ursa Major constellation |
| gptkbp:location |
Ursa Major constellation
|
| gptkbp:mass |
1.5 x 10^11 solar masses
approximately 100 billion solar masses approximately 10 billion solar masses about 100 billion solar masses 3.5 x 10^10 solar masses |
| gptkbp:notable_feature |
high rate of star formation
high surface brightness cigar shape |
| gptkbp:notable_galaxies |
gptkb:Irr
IB(s)0 IBm |
| gptkbp:orbital_period |
with M81
|
| gptkbp:part_of |
gptkb:M81_Group
|
| gptkbp:population_density |
high star density
|
| gptkbp:previous_name |
gptkb:NGC_3034
|
| gptkbp:redshift |
0.00068
0.0006 |
| gptkbp:research |
available
|
| gptkbp:research_importance |
important for understanding starburst galaxies.
|
| gptkbp:right_ascension |
9h 55m 52.4s
|
| gptkbp:scientific_classification |
gptkb:galaxy
IB(s)0 |
| gptkbp:type |
gptkb:galaxy
gptkb:spiral_galaxy |
| gptkbp:bfsParent |
gptkb:galaxy
gptkb:Draco |
| gptkbp:bfsLayer |
4
|