NGC 6790 (PK 37-6.1) Planetary Nebula in Aquila

Located at: RA 19 hours 22 minutes 57 seconds, Dec +01 degrees 30 minutes 54 seconds

Size: 7.0" Magnitude: 10.2 photographic Class: 2

North is up

West to the right

Telescope:

 14.5" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -15c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 16.67 minutes (200 x 0.0833 minute {5 seconds} subs), 08/3/2016; seeing 1.8-3.6 FWHM per CCDStack

Processing:

CCDStack 2.92.6001.26126, Photoshop CS5.1

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes: Still taking advantage of the southern objects before the moon moves into the southern skies (see B 316 and Parsamian 21) ... This NGC planetary nebula is a challenge to record at my focal length/seeing conditions ... the nebulosity is small (7 seconds), and the central start is bright (11.1 according to Megastar). Even with 5 second subs, it looks stellar (see one 5 second sub).

View 200% crop. See the CDS image/data.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 6790
NGC 6790 = PK 37-6.1 = PN G037.8-06.3
19 22 56.9 +01 30 47
V = 10.7;  Size 10"x5"

17.5": at 82x, very bright, stellar, surprisingly prominent, estimate V = 10.0.  
Blinks well with an OIII filter.  At 280x appears very bright and a very small 
but definite disc about 5" diameter is visible with a bluish color.  A mag 11.5 
star lies 35" W.

13": bright, just non-stellar 220x, estimate 10.0, easy blinker with OIII.  A 
mag 11 star is 30" W.  Forms the E vertex of a thin rhombus of mag 10 stars.

- by Steve Gottlieb