J 900* (PK 194+2.1) Planetary Nebula in Gemini

Located at: RA 06 hours 25 minutes 57 seconds, Dec +17 degrees 47 minutes 26 seconds

Size: 9.0" Magnitude: 12.4 photographic Class: 3b+2

North is up

West to the right


 14.5" f5 Newtonian reflector


 ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56


Lumicon Red filter, 30 minutes (180 x 0.167 minute {10 seconds} subs), 03/27/2014; seeing 2.4-3.6 FWHM per CCDStack


CCDStack 2.77.5159.19820, Photoshop CS5.1


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

Notes:* I'm trying to image objects that I can finish in one evening, as the next several days have clouds/rain in the forecast.

Image/Data from CDS Aladin previewer.

View 200% crop.

* J = Jonckheere

Jonckheere R., 1962, general catalogue of 3350 faint double stars, observed from 1906 to 1962. Edit. Observatoire de Marseille. Ref. for these objects are collected p. 7 and in the Index, which gives J2000 coordinates. Nebulae, Novae are listed p. 418. For double *, use IDS Nomenclature. Nos 320, 475, 900 are PN.