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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الملاحظات: 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.
المعلمات المدارية
نصف المحور الرئيسي
-17370.0 AU
الانحراف المركزي
1.0001
الأوج
2.255 AU
الحضيض
-34741.737 AU
الميل
120.74°
الدورة المدارية
— yr
العصر
2445755.5
اللانوية المتوسطة
0.0°
المعلمات الفيزيائية
القطر
— km
البياض
—
الكثافة
— g/cm³
دورة الدوران
— h
المقدار المطلق
—
جودة المدار
RMS
0.70105
رمز الحالة
—
معرف المدار
—
