J 320* (PK 190-17.1) Planetary Nebula in Orion

Located at: RA 05 hours 05 minutes 34 seconds, Dec +10 degrees 42 minutes 23 seconds

Size: 26" x 14" Magnitude: 12.9 photographic Class: 2+4

North is up

West to the right


 14.5" f5 Newtonian reflector


  ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56


Lumicon Red filter, 16.67 minutes (100 x 0.167 minute {10 seconds} subs), 02/3/2015; seeing 1.8-3.7 FWHM per CCDStack


CCDStack 2.86.5496.24001, Photoshop CS5.1


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

Notes: * Shot this little planetary while waiting for the moon to clear NGC 2371/72.

See the CDS image/data. My short total exposure barley shows the two faint N-S extensions shown in the POSSII/F image ...

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.