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: 5/6.9.1999 23:10

Telescope: TAL-1 N110/805mm

Magn: 162x


Field: 15'

NE Lim.mag: 5,2

Background sky: 4

Seeing: 2

Weather: +12C

Ellipsin muotoinen rengas. Näkyy helposti renkaana.