M51 Whirlpool

Name: M 51
Object type: Galaxy
Magnitude: 8.4
Constellation: Canes Venatici
Right Ascension: 13h 29m 55s
Declination: 47° 11' 45" N
Altitude: 53.9°
Azimuth: 69.8°

Observation details:
Observation time (UT): 10 Apr 2000 04:46
Duration: 10 min
Observer: RAH
Site: Pilot Rock OR
Seeing (Antoniadi scale): II: Slight undulations
Weather: Mostly clear, cold, 1st Q moon

Equipment details:
Instrument: 12.5" EL
Eyepiece: 17 Nagler
Barlow: Paracor
Magnification: 107x
Field of view: 0° 45'

Very large, two cores. Bridge is indistinct - hint of spiral arms in the main galaxy. The second looks attached only because the neb from each appears to merge.