[an error occurred while processing this directive]
Calvin Observatory
Home
Hours
Directions
Weather Forecast
Cool Images
Equipment
Publications
Observing Request
External Links
 
Related Links
Wildrik Botjes Planetarium
Physics & Astronomy Department

Astr111 Photography Projects, Fall 2009

Previous imageUp to Astr110 IndexNext image

Saturn Nebula, April Queitsch

saturn Nebula

The Saturn Nebula, also known as NGC 7009, is a planetary nebula. It was discovered by William Herschel in 1782. In 1840 Lord Rosse gave it the nick name of Saturn Nebula because of its slight resembalance to that of Saturn and its rings. What makes it a planetary nebula is that at the center lays a bright central star that is surrounded by ring-like projections. It lays 1,400 light years away in the constellation of Aquarius. It has a Magnitude of 8. It was also said to be one of nine rare celestial objects.

The picture seen above is distinctly green with two arm-like projections coming from each side.These could be a ring caused by some force. Looking more closely at the image a center star can be seen as well and appears blueish. The blue color is because it is a black body object meaning it gives of intense radiation. IE it's very hot. At the ends of the arms some redish-orange can be seen. Though the green gases, oxygen, are being floressed by the star dominate the color scheme, in the center there is also reds, yellows and oranges. From arm to arm it measures 0.34 light years across.

References:
Plotner, Tammy. "IYA "Live" Telescope Today NGC 7009" Universe Today. <http://www.universetoday.com/2009/09/23/iya-live-telescope-today-ngc-7009/>.

Frommert, Hartmut and Kronberg, Christine. "NGC 7009." Students for the Exploration and Development of Space. <http://seds.org/messier/Xtra/ngc/n7009.html>

Right Ascension (J2000) 21:04:2
Declination (J2000) -11:1934:00
Filters used blue(B), green(V), red(R), and clear(C)
Exposure time per filter 5x60 seconds in CBVR
Date observed

November 8, 2009 (CBVR)