Planetary Nebula IC 1454

IC 1454
IC 1454: Planetary Nebula in Cepheus. Section of DSS2 [147]


This planetary nebula was discovered on 9 August 1891 by the British astronomer William Frederick Denning using his 10 inch reflecting telescope in Bistol. [277] In 1895 J. L. E. Dreyer added the nebula as IC 1454 in his «Index Catalogue of Nebulae» and described it with: «very faint, small, star of 7m 4' following.» [314]

In 1955 the American astronomer George Ogden Abell identified the object as a planetary nebula during a survey on the photo plates of the «Palomar Observatory Sky Survey» (POSS) and listed it in his second publication of 1966 as Abell 81. Most of these 86 PNs discovered on the POSS photo plates are large and have a low surface brightness, which suggests that their stage of development is advanced. [331, 332]

IC 1454
IC 1454: Image taken with Hubble Space Telescope. © ESA/Hubble, NASA, Judy Schmidt [165]

Physical Properties

Simbad lists distances around 4200 pc. [145] SkySafari 6 lists a visual magnitude of 14.3. [149]

«Strasbourg-ESO Catalogue of Galactic Planetary Nebulae» Acker et al., 1992 [141]
DesignationsPN G117.5+18.9: IC 1454, PK 117+18.1, A55 67, A 81, ARO 376, VV' 568
Right Ascension (J2000.0)22h 42m 36s
Declination (J2000.0)+80° 26' 45"
Dimensions 28.5" (optical)
Expansion Velocity 46. km/s (O-III)
C-Star DesignationsAG82 446
C-Star Magnitude18.8 mag (B filter)
DiscovererABELL 1955

Finder Chart

The planetary nebula IC 1454 is located in the constellation Cepheus, which is from May through December best visible and high in the night sky. It can easily be found as it is on the western side of a conspicuous asterism of stars with 7th magnitude approximately between Errai (γ Cephei) and Polaris (α Ursae Minoris).

Chart Planetary Nebula IC 1454
Planetary Nebula IC 1454 in constellation Cepheus. Chart created using SkySafari 6 Pro and STScI Digitized Sky Survey. [149, 160]

More Objects Nearby (±15°)


141Strasbourg-ESO Catalogue of Galactic Planetary Nebulae; A. Acker, F. Ochsenbein, B. Stenholm, R. Tylenda, J. Marcout, C. Schohn; European Southern Observatory; ISBN 3-923524-41-2 (1992); (2021-02-18)
145SIMBAD astronomical database;
147Aladin Lite; (2020-12-23)
149SkySafari 6 Pro, Simulation Curriculum;
160The STScI Digitized Sky Survey;
165Flickr: Judy Schmidt; (2021-01-02)
277«Historische Deep-Sky Kataloge» von Dr. Wolfgang Steinicke; (2021-02-17)
314«Index Catalogue of Nebulæ found in the years 1888 to 1894, with Notes and Corrections to the New General Catalogue» Dreyer, J. L. E.; Memoirs of the Royal Astronomical Society, Vol. 51, p.185; 1895; Bibcode:1895MmRAS..51..185D
331«Globular Clusters and Planetary Nebulae Discovered on the National Geographic Society-Palomar Observatory Sky Survey» Abell, G. O.; Publications of the Astronomical Society of the Pacific, Vol. 67, No. 397, p.258-261, August 1955; DOI:10.1086/126815; Bibcode:1955PASP...67..258A
332«Properties of Some Old Planetary Nebulae» Abell, G. O.; Astrophysical Journal, vol. 144, p.259, April 1966; DOI:10.1086/148602; Bibcode:1966ApJ...144..259A