Basic object information
Name: IC 4634
Type of object: Planetary nebula
Magnitude: 12.0
Size: 20.0"x10.0"
Magnitude of central star: 17.0
Object classification: 2a(3)
Description: eS,B
Notes: Pale blue disk 10" across--Hartung

Catalog position for epoch J2000.0
Right ascension: 17h 01m 33.7s
Declination: -21 49' 31"

Constellation: Ophiuchus

Observer: Iiro Sairanen
Obs. place: Base del Teide (2280m above sea level), Tenerife, Spain
Date/Time: 18/19.4.2004 1:35

Telescope: Newton 110/805mm

Magn: 107x


Field: 28'

NE Lim.mag: 7,0

Background sky: 2

Seeing: 3

Height: 17
Visuality: III

Weather: +9˚C, dry and good

A stellar planetary nebula which is visible with averted vision. No colour.