Reflections from Heaven

LDN899

Dark Nebula in Cygnus

RA:20h 23m 49s Dec: +42° 39' 45" ~Size - 5.6'

Click on image for a mouse over starless & color version

This 6 panel mosaic of LDN899 also captures other objects including NGC6914 reflection nebula, LBN270, LBN273, LBN274, LBN279, LDN897 & LDN900.

The starless version on the next page better displays the structure and also enhances what looks like a dusty ghost emerging.

Location & Date	Backyard, Abbott Observatory- Long Island, NY, September/October 2021
Telescope	TMB130SS F/7 APO, Moonlite focuser, Losmandy G11 Gemini Image scale 1.54 arcsec/pixel
Camera	SBIG ST-10XME Baader Ha R G B filters CCD temp -10°C
Exposures	Ha 18x10m Red-6x5m Green -6x5m Blue-6x5m Bin 1x1 per each mosaic panel
Planning & Acquisition	Image mosaic planning - Sequence Generator Pro Image acquisition - Sequence Generator & PHD2 (guiding)
Processing	CCDStack - calibration, debloom Astro Pixel Porocessor - normalize, stacking, mosaic assembly Adobe Photoshop - Ha+RGB Color processing, Noise reduction, JPEG conversion This is a 6 panel mosaic

30 minute exposure in Blue

There was rotator position slippage during these frames

30 minute exposure in Green

30 minute exposure in Red

180 minute exposure in Ha

Click here for full color version