Astronomy Picture of the Day · September 1, 2004

An Inner Neptune for 55 Cancri

The Astronomy Picture of the Day for September 1, 2004 is “An Inner Neptune for 55 Cancri,” an image. It is credited to Illustration Credit: U. Texas , NSF , NASA. The original explanation runs about 153 words.

From the explanation

“Is our Solar System unique? The discovery of a Neptune -mass planet in an sub-Mercury orbit around nearby Sun -like star 55 Cancri , announced yesterday along with the discovery of other similar systems, gives a new indication that planetary systems as complex as our own Solar System likely exist elsewhere.”

— APOD editors, September 1, 2004

Read the full explanation on science.nasa.gov

At a glance

Date: September 1, 2004
Type: Image
Credit: Credit: Illustration Credit: U. Texas , NSF , NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 153 words

All of September 2004 → · 2004 by month → · Full archive since 1995 →

Topics in this entry

The Sun

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On this day: September 1 in other years

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Source

Astronomy Picture of the Day, September 1, 2004 — science.nasa.gov/image-article/apod-2004-september-1-an-inner-neptune-for-55-cancri

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.