News Release Archive:

News Release 394 of 1051

November 15, 2007 09:00 AM (EST)

News Release Number: STScI-2007-40

Hubble Zooms In on Heart of Mystery Comet

Technical facts about this news release:

About the Object
Object Name: Comet 17P/Holmes
Object Description: Periodic Comet in our Solar System
Position (J2000)
(on November 4, 2007):
R.A. 03h 42m
Dec. +50° 37'
Constellation: Perseus
Orbital Properties: Comet 17P/Holmes has the following orbital values:
Aphelion distance: 5.2 Astronomical Units
Perihelion distance: 2.1 Astronomical Units
Semi-major axis: 3.6 Astronomical Units
Distance: On November 4, 2007, Comet 17P/Holmes was 1.62 Astronomical Units from the Earth, and 2.48 Astronomical Units from the Sun.
About the HST Data
Data Description: The Hubble image was created from HST data from proposal 11418: H. Weaver (Johns Hopkins University/Applied Physics Laboratory), C. Lisse (University of Maryland), P. Lamy (Space Astronomy Laboratory, Marseille), I. Toth (Hungarian Academy of Sciences), W. Reach and J. Vaubaillon (California Institute of Technology), and M. Mutchler (STScI).
Instrument: WFPC2
Exposure Date(s): November 4, 2007
Filters: F555W (V) and F675W (R)
About the Ground-based Observations
Data Description: The ground-based image of Comet 17P/Holmes was taken November 1, 2007, by astrophotographer Alan Dyer. The observations were made in southern Alberta, Canada with a 105mm apochromatic refractor at f/5 with a Canon 20Da camera at ISO400. Field is about 2.5 x 1.5 degrees.
About this Image
Image Credit: NASA, ESA, H. Weaver (Johns Hopkins University/Applied Physics Lab), and A. Dyer
Release Date: November 15, 2007
Orientation: Hubble Image of Comet Holmes - November 4, 2007