Q97017048
Sign in to saveAlso known as Caldwell 90, C 90
planetary nebula in the constellation of Carina
Astronomical data · SIMBAD
- Object type
- PN
- Spectral type
- [WO2]
- Distance
- 9,462 light-years
- Redshift
- z = 0.000060043339737081425
- Coordinates
- RA 140.3558° · Dec -58.3113°
via SIMBAD · CDS Strasbourg
Key facts
- Right ascension
- 09 21 25.38336
- Declination
- −58 ° 18 ′ 40.6167 ″
- Distance
- 7,270 ly (2,228 pc ) ly
- Apparent dimensions v
- 12″ , 43.3″ × 35.6″
- Constellation
- Carina
- Designations
- ESO 126-8, PN G278.1-05.9, Caldwell 90
via Wikipedia infobox
Wikidata facts
- Constellation
- Carina
- Distance from Earth
- 2228
- Image
- NGC 2867.jpg
Show 13 more facts
- radial velocity
- 18.0
- right ascension
- 140.35576398512270
- declination
- -58.31128241228210
- catalog code
- Gaia DR2 5300450617834879872
- epoch
- J2000.0
- spectral class
- [WC3]
- Commons category
- NGC 2867
- discoverer or inventor
- John Frederick William Herschel
- time of discovery or invention
- 1834-04-01
- apparent magnitude
- 15.0909
- parallax
- 0.1597
- right ascension component of proper motion
- -5.555
- declination component of proper motion
- 2.347
Sources (1)
via Wikidata · CC0
~2 min read
Encyclopedic overview
NGC 2867 (also known as Caldwell 90) is an elliptical Type II planetary nebula in the southern constellation of Carina, just over a degree to the NNW of the star Iota Carinae. It was discovered by John Herschel on April 1, 1834. Herschel initially thought he might have found a new planet, but on the following night he checked again and discovered it had not moved. The nebula is located at a distance of 7,270 light-years from the Sun.
The central star of the nebula is of spectral type WC3 and is in the process of evolving into a white dwarf, having previously shed the atmosphere that created the surrounding nebula. It is now a hydrogen deficient GW Vir variable that is undergoing non-radial pulsations with an amplitude of less than 0.3 in magnitude. The star has an estimated temperature of 165+18 −20 kK with 5% of the radius of the Sun and is radiating 1,400 times the Sun's luminosity.
Excerpted from Wikipedia’s “Q97017048” article, available under the CC BY-SA 4.0 licence.