Bubble Nebula and M52
Characteristics:
Magnitude: about 7.0
Distance: 11,000 light years
RA: 23h 20m 42s
Dec: 61 degrees 12' 00"
Position Angle: +273 degrees
Description:
The Bubble Nebula is one of only a
few "bubbles" identified in the night sky, and it forms a photogenic
partner with the open cluster M52, seen in the lower left. It is
an unusual planetary nebula named for the surrounding bubble that is
seen in the upper right portion of the photograph above, caused by gas
ejected from a massive central star. The rate of ejected gas is
so brisk that it "runs into" the wall of the surrounding nebula, thus
creating a boundary of higher density gas that forms the outer shell of
the bubble. More information about this process may be found here.
Photographic
Details:
Dates of image acquistion: September 19, 20, and 21, 2020
Scope:
Takahashi
FSQ106 at f5 on the Takahashi NJP
Mount
Autoguider: SBIG ST-402
with
60mm guidescope, focal length 227mm
Camera: SX814 with
Starlight Xpress 5 position USB filter wheel
Filters: Baader
Ha, Baader RGB filters
Exposures: Total
exposure 21 hours
Post-processing:
Calibrated, aligned and
stacked in Maxim, followed
by DDP
in ImagesPlus (IP). Further
processing in Photoshop CS (16
bit format)
Please
note: Graphics on this website
may not be reproduced without author permission.
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