California Nebula
E491030
The California Nebula is a large, faint emission nebula in the constellation Perseus, named for its resemblance in shape to the U.S. state of California and known as a popular target for astrophotography.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
deep-sky object ⓘ emission nebula ⓘ |
| alsoKnownAs |
NGC 1499
NERFINISHED
ⓘ
Sharpless 2-220 NERFINISHED ⓘ |
| angularSize | about 2.5 degrees ⓘ |
| apparentMagnitudeV | 5.0 ⓘ |
| belongsTo | Local Spiral Arm NERFINISHED ⓘ |
| bestObservedIn |
autumn
ⓘ
winter ⓘ |
| bestSeenFrom | Northern Hemisphere NERFINISHED ⓘ |
| catalog |
New General Catalogue
NERFINISHED
ⓘ
Sharpless catalog NERFINISHED ⓘ |
| catalogNumber |
NGC 1499
NERFINISHED
ⓘ
Sh2-220 NERFINISHED ⓘ |
| constellation | Perseus NERFINISHED ⓘ |
| contains |
interstellar dust
ⓘ
ionized hydrogen gas ⓘ |
| coordinateSystem | equatorial coordinates ⓘ |
| declination | +36° 25′ ⓘ |
| discoveredBy | Edward Emerson Barnard NERFINISHED ⓘ |
| discoveryYear | 1884 ⓘ |
| distanceFromEarth |
about 1,000 light-years
ⓘ
about 320 parsecs ⓘ |
| dominantEmissionLine |
H-alpha
ⓘ
ionized hydrogen ⓘ |
| emissionMechanism | recombination of ionized hydrogen ⓘ |
| galacticArm | Orion Arm NERFINISHED ⓘ |
| hasColor | reddish ⓘ |
| ionizingStar | Xi Persei NERFINISHED ⓘ |
| ionizingStarType | O-type star ⓘ |
| locatedIn | Milky Way ⓘ |
| namedAfter | U.S. state of California NERFINISHED ⓘ |
| nearbyConstellation | Auriga NERFINISHED ⓘ |
| observability |
faint to the naked eye
ⓘ
requires dark skies ⓘ requires long-exposure imaging ⓘ |
| observedWith |
hydrogen-alpha filters
ⓘ
telephoto lenses ⓘ wide-field telescopes ⓘ |
| partOf | Perseus molecular cloud complex NERFINISHED ⓘ |
| popularFor | astrophotography ⓘ |
| rightAscension | 04h 03m ⓘ |
| shapeResembles | outline of California ⓘ |
| skyLocation | near star Xi Persei ⓘ |
| spectralType | emission nebula spectrum ⓘ |
| typeOfNebula | diffuse nebula ⓘ |
| visibleIn |
narrowband H-alpha imaging
ⓘ
optical wavelengths ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
NGC 1499