Basic object information

Object name: PK 64+ 5.1
Popular name: Campbell's Hydrogen Star
Object type: Planetary nebula
Magnitude: 9.6
Size: 5.0"
Magnitude of central star: 10.0
Object classification: 4
Description: vF,S

Catalog information

RA (J2000.0): 19h 34m 48.0s
Dec (J2000.0): +30 31' 00"

Constellation: Cygnus


Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 1/2.9.2005 23:45

Telescope: Newton 406/1830 mm

Magn: 292x

Filter: UHC

Field: 10'

NE Lim.mag: 6.8

Background sky: 2

Seeing: 2

Height: 54
Visuality: III
Weather: +9C

Campbell's hydrogen star. Very small roundish haze around 10 mag star. Best visible with an UHC.