Iiro's DeepSky Sketches

Name: NGC 6751Other name: PK 29-5.1
RA: 19h 5.9m DEC: -6° 0'
Constellation: AQL
Type: Planetary nebula
Magnitude: 12
Size: 20''
Surface brightness: 9.2
Brightest star: 13
Classification: 3
Description: pB,S
Notes: Annular
Observer: Iiro Sairanen
Location: Ahola, Joutseno, Finland
Date: 19/20.8.2006 0:35
Instrument: Catadioptric 300/3000 mm
Magnification: 600xFilter: UHC
Field: 7'Seeing: 3
Background sky: 3NE lim mag: 6
Visuality: IIHeight: 18°
Weather: +12°C, northern lights
Description: Pretty bright oval (SW-NE) planetary in southern Aquila. Due low height and smoke from the forest fires in Russia the planetary was much harder than expected. It appears as an oval haze in 12'' Meade LX 200 with Baader Hyperion 5 mm and UHC-filter. The center is clearly brighter which may inform of 13.8 mag central star. Actually I picked it up few times. No colour, UHC improves the contrast.
Updated: 28.8.2006 20:52