14 February 2013

NGC 7129 in LRGB

-Telescope: William Optics FLT 110 with F/T focuser 3025 & Starizona usb motor focus
-Mount: Skywatcher EQ6 Skyscan pro
-Chip: Qhy 2Pro at -10c
-Guiding: TS finder 8x50 with Meade DSI I pro
-Filter wheel: Starlight Xpress usb 7x1.25
-Location: Mountain Parnonas, Pelloponisos,GR
Luminance: 37x300sec (bin 1x)
Baader RGB: 10x300sec in all filters (bin 1x)
Total: 335 min

-Programs I have used-
Maxim DL ,Photoshop CS5, The Sky6 ,Focusmax

Information about NGC 7129

NGC 7129 is a reflection nebula located 3,300 light years away in the constellation Cepheus. A young open cluster is responsible for illuminating the surrounding nebula.[2] A recent survey indicates the cluster contains more than 130 stars less than 1 million years old.[citation needed] NGC 7129 is located just half a degree from nearby cluster NGC 7142.

The nebula is rosebud-shaped; the young stars have blown a large, oddly shaped bubble in the molecular cloud that once surrounded them at their birth. The rosy pink color comes from glowing dust grains on the surface of the bubble being heated by the intense light from the young stars within. The ultra-violet and visible light produced by the young stars is absorbed by the surrounding dust grains. They are heated by this process and release the energy at longer infrared wavelengths as photographed by the Spitzer Space Telescope. The reddish colors in the false-colour infrared image suggest the distribution of hydrocarbon rich molecular material.[citation needed]

The much cooler molecular cloud outside the bubble is mostly invisible to Spitzer. However, three very young stars near the center of the nebula are sending jets of supersonic gas into the cloud. The collision of these jets heats carbon monoxide molecules in the nebula. This produces the complex nebulosity that appears like a stem of a rosebud.