Tag Archives: Melotte 15

Heart Nebula

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The Heart NebulaIC 1805Sh2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes. The nebula is formed by plasmaof ionized hydrogen and free electrons.
The very brightest part of this nebula (the knot at the right) is separately classified as NGC 896, because it was the first part of this nebula to be discovered.
The nebula’s intense red output and its configuration are driven by the radiation emanating from a small group of stars near the nebula’s center. This open cluster of stars known as Melotte 15 contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun’s mass. The cluster used to contain a microquasar that was expelled millions of years ago.

Imaging telescopes or lenses: Takahashi FSQ-85EDX
Imaging cameras: Canon / CentralDS EOS 60D
Mounts: CGEM
Guiding telescopes or lenses: Borg 50 Achromat 50/250
Focal reducers: Takahashi .73X Reducer QE
Software: PixInsight, BinaryRivers BackyardEOS
Dates: Sept. 9, 2011
Frames: 15×480″
Integration: 2.0 hours

Author: Emanuele Todini
AstroPhotography of the day by SPONLI 19 Sep 2014

IC 1805: Light from the Heart

IC 1805
Image Credit & Copyright: César Blanco González

Sprawling across almost 200 light-years, emission nebula IC 1805 is a mix of glowing interstellar gas and dark dust clouds about 7,500 light-years away in the Perseus spiral arm of our galaxy. Stars were born in this region whose nickname, the Heart Nebula, derives from its Valentine’s-Day-appropriate shape. The clouds themselves are shaped by stellar winds and radiation from massive hot stars in the nebula’s newborn star cluster Melotte 15 about 1.5 million years young. This deep telescopic image maps the pervasive light of narrow emission lines from atoms in the nebula to a color palette made popular in Hubble images of star forming regions. The field of view spans about two degrees on the sky or four times the diameter of a full moon. The cosmic heart is found in the constellation of Cassiopeia, the boastful mythical Queen of Aethiopia.

NASA APOD 14-feb-2014

Melotte 15 in IC 1805

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The Heart NebulaIC 1805Sh2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes. The nebula is formed by plasma of ionizedhydrogen and free electrons.

The very brightest part of this nebula (the knot at the right) is separately classified as NGC 896, because it was the first part of this nebula to be discovered.

The nebula’s intense red output and its configuration are driven by the radiation emanating from a small group of stars near the nebula’s center. Thisopen cluster of stars known as Melotte 15 contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun’s mass. The cluster used to contain a microquasar that was expelled millions of years ago.

Imaging telescopes or lenses: TecnoSky Apo 70/420
Imaging cameras: Atik 314L+ Mono
Mounts: Skywatcher HEQ5 Pro
Guiding telescopes or lenses: TecnoSky Telescopio Guida 50/168
Guiding cameras: QHY5-II QHY-5 color
Software: Adobe Photoshop CS5 Photoshop CS5, Deep Sky Stacker 3.3.3 Beta 47
Resolution: 1329×954
Dates: Dec. 21, 2013
Frames:
Baader H-alpha 7nm : 8×900″ -10C bin 1×1
Baader OIII 1.25″ Filter: 8×900″ -10C bin 1×1
Integration: 4.0 hours
Darks: ~10
Bias: ~9

Autor: Domenico De Luca

28 December 2013

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Melotte 15 in the Heart

LRGBV6Melotte15_JWalker

Image Credit & Copyright: 
Jimmy Walker
Explanation: Cosmic clouds seem to form fantastic shapes in the central regions of emission nebula IC 1805. Of course, the clouds are sculpted by stellar winds and radiation from massive hot stars in the nebula’s newbornstar cluster, Melotte 15. About 1.5 million years young, the cluster stars are near the center of this colorful skyscape, along with dark dust clouds in silhouette. Dominated by emission from atomic hydrogen, the telescopic view spans about 30 light-years. But wider field images reveal that IC 1805’s simpler, overall outline suggests its popular name – The Heart Nebula. IC 1805 is located along the northern Milky Way, about 7,500 light years distant toward the constellation Cassiopeia.

APOD NASA 27-dec-13