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Photographer:

Mike Olason

Location of Photo:

Tucson, Arizona

Date/Time of photo:

2 October 2021, 0737 UT

Equipment:

11" SCT and STF-8300M

Description:

Asteroid (248370) 2005 QN173 is now also known as Periodic Comet 433P after it developed a coma and tail this summer. The comet should get fainter this fall after brightening to around magnitude 18 this summer. The tail in this gif/image is at least 0.05 degrees long, earlier this summer the tail was reported to be 0.17 degrees long.