... The star is associated with a luminous arc-shaped reflectionnebula. ... type F5Ia, associated with a bipolar reflectionnebula (the so-called Egg nebula ... object at the apex of the reflection variable [09396] cometary nebula NGC 2261 ...
... Nebula, The Glowing Eye of NGC6751, The Stingray Nebula, and The Eight Burst Nebula ... Ring Nebula, Butterfly Nebula M2-9, The Cat's Eye Nebula, and The Hourglass Nebula ...
... nebula itself and the surrounding dark-sky environment: objects such as the Orion ... as the Ring Nebula (M57), the Dumbbell Nebula (M27), and the Saturn Nebula (NGC7009 ...
... A couple of snacks ago, I talked about how the pulsar in the center of the Crab Nebula is helping the inner nebula expand . ... The Crab Nebula is one such supernova remnant, and the nebula we see is the what's left of the tremendous explosion that ...
... resemble shallow angle cones, and two reflections are required to provide good ... by an early observation of the Crab Nebula and pulsar taken as part of the HETG ... Figure 12 shows the zeroth-order image of the Crab Nebula. ...
... The light of the nebula itself is polarized (vibrating in a certain ordered way), again suggesting electrons of very high energy spiraling in a magnetic field, and the nebula also contains many bright filaments (picture), which might well be magnetic in ...
... The light of the nebula itself is polarized (vibrating in a certain ordered way), again suggesting electrons of very high energy spiraling in a magnetic field, and the nebula also contains many bright filaments (picture), which might well be magnetic in ...
... We note that the model nebula may also explain the IR-spectrum and K-magnitude of Cyg X-3 if one adds the He-star to excite the nebula with some IRexcess (in prep.) ...
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