Basic object information

Object name: PK 55+16.1 (Abell 46)
Object type: Planetary nebula
Magnitude: 15.6
Size: 1.1'x1.0'
Magnitude of central star: 15.1
Object classification: 3b(2)

Catalog information

RA (J2000.0): 18h 31m 18.0s
Dec (J2000.0): +26 56' 00"

Constellation: Lyra


Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 6/7.10.2005 21:45

Telescope: Newton 457/2280 mm

Magn: 183x

Filter: UHC

Field: 16'

NE Lim.mag: 6.7

Background sky: 2

Seeing: 2

Height: 44
Visuality: III
Weather: +8C

About 1.0' in diameter, slightly elliptical in NE-SW, 15 mag central star is visible without any trouble. Good contrast with UHC filter.