NGC 2261

GPTKB entity

Statements (51)
Predicate Object
gptkbp:instance_of gptkb:nebula
gptkbp:age young stellar object
gptkbp:apparent_magnitude 12.8
gptkbp:associated_with gptkb:R_Monocerotis
star formation regions
gptkbp:capacity silicate and carbonaceous materials
gptkbp:collaborations involves multiple observatories
gptkbp:collects gptkb:Hubble_Space_Telescope
gptkbp:community_engagement featured in astronomy outreach programs
gptkbp:composed_of interstellar dust and gas
gptkbp:constellation irregular
gptkbp:coordinates RA 6h 41m 30s, Dec -8° 44' 00"
gptkbp:cultural_references mentioned in astronomy literature.
gptkbp:declination -08° 44' 00"
gptkbp:depicted_in best in winter months
gptkbp:discovered_by gptkb:William_Herschel
gptkbp:distance approximately 2,500 light years
via parallax method
gptkbp:emissions_standard present in spectrum
gptkbp:exhibition gptkb:New_General_Catalogue
gptkbp:first_appearance 1783
gptkbp:future_plans ongoing studies on variability
gptkbp:has_spectral_type B-type star
gptkbp:historical_significance one of the first variable nebulae discovered
https://www.w3.org/2000/01/rdf-schema#label NGC 2261
gptkbp:impact affects nebula shape
gptkbp:is_known_for gptkb:Herschel's_Variable_Nebula
gptkbp:is_observed_in amateur astronomers
gptkbp:lighting magnitude 12.0
caused by changes in the star's brightness
visibility affected by urban areas
gptkbp:located_in constellation Monoceros
gptkbp:notable_feature Hubble Space Telescope images
gptkbp:notable_work studies on variable stars
gptkbp:photography infrared observations
first captured on photographic plates in 1880s
noted in observations
gptkbp:research used to analyze chemical composition
requires telescope for visibility
extensively studied since discovery
gptkbp:research_focus study of star formation
gptkbp:research_interest understanding nebula dynamics
gptkbp:right_ascension 06h 41m 00s
gptkbp:size approximately 2.5 arcminutes
approximately 1.5 arcminutes
gptkbp:sound observed in surrounding areas
gptkbp:storage used to measure brightness changes
gptkbp:type gptkb:nebula
gptkbp:year_created 1783
gptkbp:bfsParent gptkb:Monoceros
gptkbp:bfsLayer 5