![HIPO Photometer Installed on SOFIA Telescope](https://www.nasa.gov/wp-content/uploads/2023/03/292275main_ED08-0296-14_full.jpg)
HIPO Photometer Installed on SOFIA Telescope
The SOFIA airborne observatory's 2.5-meter infrared telescope peers out from its cavity in the SOFIA rear fuselage during nighttime line operations testing.
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https://www.nasa.gov/image-detail/hipo-photometer-installed-sofia-telescope-2/
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