Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1805
Getting plate-solving status, please wait...
Heart Nebula (Ha) - 12/5/2010, 


Heart Nebula (Ha) - 12/5/2010
Powered byPixInsight

Heart Nebula (Ha) - 12/5/2010

Technical card

Imaging telescopes or lenses: Stellarvue SV105

Imaging cameras: QHYCCD QHY9M

Mounts: Takahashi EM-200 Temma2

Guiding telescopes or lenses: Orion ST 80

Software: PHD guiding  ·  Sequence Generator Pro  ·  PixInsight  ·  Nebulosity

Filters: Ha

Dates:Dec. 4, 2010

Frames:Ha: 10x1200" -15C bin 1x1

Integration: 3.3 hours

Avg. Moon age: 28.24 days

Avg. Moon phase: 1.89%

Basic astrometry details

Astrometry.net job: 118078

RA center: 2h 34' 46"

DEC center: +61° 29' 42"

Pixel scale: 2.369 arcsec/pixel

Orientation: 91.519 degrees

Field radius: 0.745 degrees

Resolution: 620x388


This image shows the core (center) of the heart nebula near the top center of the image. Here you will find an open cluster of stars that were born from the massive amounts of hydrogen (red) gas surrounding them. Several of these stars are 50 times more massive than our own sun. Coincidentally, the "heart" nebula is in the constellation Cassiopeia "The vain and boastful queen". In addition to the red hydrogen gas, you will notice some striking contrast in the black dust clouds that are scattered throughout the frame (most prominently toward the bottom).

This cluster of stars is only about 1.5 million years old (in contrast with our Sun's age of 5 billion years). Though you can't see it here, this emission nebula covers some 5 times the distance of the full moon (as perceived by us)...

Located in Cassiopeia, this nebula is some 7,500 light years distant.


Sky plot

Sky plot


Heart Nebula (Ha) - 12/5/2010,