Basic object information
Name: M 57
Popular name: Ring Nebula
Type of object: Planetary nebula
Magnitude: 9.4
Size: 1.4'x1.0'
Magnitude of central star: 15.8
Object classification: 4(3)
Description: Ring neb,B,pL,cE
Notes: Ring Nebula;central* var 14 to 16 mag;PK63+13.1

Catalog position for epoch J2000.0

Right ascension: 18h 53m 33.4s
Declination: +33 01' 48"

Constellation: Lyra

Observer: Iiro Sairanen
Obs. place: Lakasenpelto, Imatra, Finland
Date/Time: 9/10.10.2009 0:15

Telescope: Galileoscope 50/500 mm

Magn: 143x

Filter:

Field: 34'

NE Lim.mag: 6.2

Background sky: 5 (19.4)

Seeing: 3

Height: 32
Visuality: II
Weather: -3C, 67% Moon in Taurus

Elliptical haze which is clearly darker in the middle with averted vision.