Planetary Nebula Minkowski 1-75
History
This planetary nebula was discovered in 1946 by the German-American astronomer Rudolph Minkowski. He detected objects with little or no continuous H-α spectrum on objective-prism survey plates obtained by W. C. Miller using the 10-inch telescope at Mount Wilson. Further examination of its appearance on direct photographs, taken at the Newtonian focus of the 60-inch or 100-inch telescope on Mount Wilson, revealed its nature as a planetary nebula. [397]
Physical Properties
| Designations | PN G068.8-00.0: M 1-75, PK 68-00.1, ARO 168, He 2- 454, VV 248, VV' 524 |
| Right Ascension (J2000.0) | 20h 04m 44s |
| Declination (J2000.0) | +31° 27' 26" |
| Dimensions | 14.6" (optical) |
| Radial Velocity | -9.0 ± 11.0 km/s |
| C-Star Designations | AG82 396 |
| C-Star Magnitude | B: >21. |
| Discoverer | MINKOWSKI 1946 |
Finder Chart
The planetary nebula Minkowski 1-75 is located in the constellation Cygnus. On 22 July it is in opposition to the Sun and culminates at local midnight.
