NGC 1999 (IC 427/428) Bright Nebula in Orion

Located at: RA 05 hours 36 minutes 14 seconds, Dec -06 degrees 39 minutes 00 seconds

Size: 21.5' x 18' Magnitude: -- Class: Emission

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,  900 minutes (90 x 10 minute subs), 02/13/14/15/16/17/2015; seeing 2.5-5.0 FWHM per CCDStack

Processing:

CCDStack 2.86.5502.25507, Photoshop CS5.1

Location:

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

Notes: * Situated just under M 42 ... often overlooked. Could use more (clear) time, but I must be moving on ... NGC 1788 and NGC 1999 where image consecutively. Due to the sort transit times, I had to image both objects quite low to the horizon, resulting in soft seeing (~5 arc seconds) for some images.

Added two more nights (16/17) to this field, but could not get a problem free run. Both the nights had fog or high thin clouds.

From the NGC/IC Project:

Contemporary Visual Observation(s) for NGC 1999
NGC 1999 = LBN 979 = Ced 55i = PP 34
05 36 25.3 -06 42 57
Size 2x2

17.5" (2/22/03): remarkable, bright 2' reflection nebula surrounding mag 10.5 
V380 Orionis (emission-line star).  At 220x, a prominent, curving dark patch or 
globule wraps around the star along the west side.  Two of the brightest Herbig-
Haro objects are close south, with HH2 4.3' due south and fainter HH1 2.5' SSW.

17.5" (2/8/90): bright, high surface brightness emission nebula surrounding a 
mag 10 star, round, about 2' diameter.  There is a prominent curved irregular 
dark patch or globule along the west side of the central star which is striking 
at high power.  The nebulosity is weakest on the SE side of star.  Easily takes 
220x-280x.

13": a curving dark lane is visible west of the central star with faint 
nebulosity west of the gap.

8": small circular nebulosity surrounds a mag 10 star.

- by Steve Gottlieb