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Kemble's Cascade (NGC 1502)
Kelsey Kaemingk

Previous imageUp to Astr110 IndexNext imageKemble's Cascade Star Cluster

Kemble’s Cascade NGC 1502 is found within the circumpolar constellation Camelopardalis. It was discovered by, and is named after Father Lucian Kemble, an amateur astronomer. Kemble’s Cascade is actually a long chain of stars that seems to be flowing out of the open cluster (NCG 1502) at its eastern tip. Open clusters are groups of stars all of similar distances from earth. These stars were formed at nearly the same time and therefore are of similar ages. However, the stars within an open cluster differ in size, making them ideal for astronomers to observe the life cycles of stars with different masses. NGC 1502 contains approximately 45 bright stars, about 3,000 light years away, and is visible to anyone with a good pair of binoculars.

This photo features NGC 1502, made up of many bright blue stars. A blue color such as this suggests high heat, meaning that these are young, high mass stars. There is also a large redder star located farther to the right. As this star is so luminous and large, it implies an older star nearing its red giant phase. This photo is about 12 light years by 18 light years.


Nemiroff, Robert and Jerry Bonnell. "Kemble's Cascade." Astronomy Picture of the Day. 2010 Jan. 28. Accessed 3 Dec. 2010. <>

Dibon-Smith, Richard. "NGC 1502 ." Web. 6 Dec. 2010. <>.

Frommert, Hartmut, and Christine Kronberg. "Open Star Clusters." Students for the Exploration and Development of Space. Accessed 3 Dec. 2010. <>.

Right Ascension (J2000) 04:07:42
Declination (J2000) +62:20:00
Filters used B (Blue), C (Clear), R (Red), V (Green)
Exposure time per filter B, V, and R (60s); C (300s)
Date observed




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