Technical facts about this news release:
| About the Object |
| Object Name: |
HD 209458 |
| Object Description: |
Host Star to Transiting Planet HD 209458b |
| Position (J2000): |
R.A. 22h 03m 10.8s
Dec. +18° 53' 04.0'' |
| Constellation: |
Pegasus |
| Distance From Earth: |
46 parsecs (150 light-years) |
|
| Object Name: |
HD 209458b |
| Object Description: |
Extrasolar Planet Transiting HD 209458
Jupiter-like Planet with Detected Atmosphere |
| Orbital Period: |
3.5 days |
| Distance Above Star's Surface: |
4 million miles (6.4 million kilometers) |
| Estimated Mass: |
0.7 times Jupiter's mass
220 times the Earth's mass |
| Maximum Temperature: |
2000 degrees Fahrenheit (1100 degrees Celsius) |
|
| About the Data |
| Data Description: |
These data are from the HST archived proposal 9064. The science team is composed A. Vidal-Madjar, A. Lecavelier des Etangs and J.-M. Désert (Institut d'Astrophysique de Paris, CNRS, France), G. Ballester (University of Arizona), R. Ferlet and G. Hébrard (Institut d'Astrophysique de Paris, France), and M. Mayor (Geneve Observatory, Switzerland). |
| Instrument: |
STIS |
| Exposure Date(s): |
August 11, 2001; September 7/14/15, 2001; October 30, 2001 |
| Exposure Time: |
7 hours |
| Filters: |
G140M (1150-1700 Å), G430L (2900-5700 Å), E140M (1150-1700 Å) |
|
| About the Image |
| Release Credit: |
ESA, A. Vidal-Madjar (Institut d'Astrophysique de Paris, CNRS, France) and NASA |
| Release Date: |
March 12, 2003 2:00 pm (EST)/20:00 (CET) |
|
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