IRAS
The Infrared Astronomical Satellite (IRAS) was the first space telescope to perform a survey of the entire night sky at infrared wavelengths. Launched on 25 January 1983, its mission lasted ten months. The telescope was a joint project of the United States (NASA), the Netherlands (NIVR), and the United Kingdom (SERC). Over 250,000 infrared sources were observed at 12, 25, 60, and 100 micrometer wavelengths.
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Beobachtungen: 35
The Infrared Astronomical Satellite (IRAS) was the first space telescope to perform a survey of the entire night sky at infrared wavelengths. Launched on 25 January 1983, its mission lasted ten months. The telescope was a joint project of the United States (NASA), the Netherlands (NIVR), and the United Kingdom (SERC). Over 250,000 infrared sources were observed at 12, 25, 60, and 100 micrometer wavelengths.
Bahnparameter
Halbachse
-17370.0 AU
Exzentrizität
1.0001
Perihel
2.255 AU
Aphel
-34741.737 AU
Inklination
120.74°
Umlaufzeit
— yr
Äon
2445755.5
Mittlere Anomalie
0.0°
Physikalische Parameter
Durchmesser
— km
Albedo
—
Dichte
— g/cm³
Rotationszeit
— h
Absolute Helligkeit
—
Bahnqualität
RMS
0.70105
Zustandscode
—
Bahn-ID
—
