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: Ahola, Joutseno, Finland
Date/Time: 19/20.8.2006 0:05

Telescope: Newton 110/805 mm

Magn: 217x

Filter:

Field: 14'

NE Lim.mag: 6.0

Background sky: 3

Seeing: 3

Height: 56
Visuality: I
Weather: +12C, northern lights

The first sketch of the season 06/07. Pretty bright annular nebula, N and S edges somewhat brighter, clearly elongated in E-W direction. A faint 12 mag star on the east side.