Planetary Nebula Minkowski 4-17

Minkowski 4-17
Minkowski 4-17: Planetary nebula (PK 79+5.1) in Cygnus; 500 mm Cassegrain 5800 mm f/11.4; SBIG STL11K; 30+3*10 min LRGB; Bernese Highlands; © 2005 Radek Chromik


The planetary nebula Minkowski 4-17 (M 4-17, PK 79+5.1) was discovered in 1948 by the German-American astronomer Rudolph Minkowski. He also contributed to the creation of the National Geographic Society - Palomar Observatory Sky Survey (POSS). The fourth list of planetary nebulae discovered by Minkowski (M 4-1 to M 4-18) was only introduced by Perek and Kohoutek in 1965. In the original list they were not numbered. [145]

Physical Properties

The distance from M 4-17 is about 4.1 kpc (13'400 light years) and the radius 0.66 pc (2.15 light years). [339]

«Strasbourg-ESO Catalogue of Galactic Planetary Nebulae» Acker et al., 1992 [141]
DesignationsPN G079.6+05.8: M 4-17, PK 79+05.1, ARO 346
Right Ascension (J2000.0)20h 09m 02s
Declination (J2000.0)+43° 43' 46"
Dimensions 15.2" (optical)
Radial Velocity-26.0 km/s ± 25.0 km/s
DiscovererMINKOWSKI 1948

Finder Chart

The planetary nebula Minkowski 4-17 (PK 79 + 5.1) is located in the constellation Cygnus. The best time to watch is April to November, when it is highest at night.

Finder Chart Planetary Nebula Minkowski 4-17
Planetary Nebula Minkowski 4-17 in constellation Cygnus. Charts created using SkySafari 6 Pro and STScI Digitized Sky Survey. Limiting magnitudes: Constellation chart ~6.5 mag, DSS2 close-ups ~20 mag. [149, 160]

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