pablo_blake
Giacobini-Zinner
Comet 21P/Giacobini-Zinner passing through the foot of Gemini. After what seemed like weeks of clouds, some morning clearing finally occurred.
Discovered in 1900, comet 21P/Giacobini–Zinner is a periodic comet with an orbital period of 6.6 years and an estimated diameter of 2km. With a minimum orbit intersection distance of 0.035 AU, it's classified as a potentially hazardous object.
Two open clusters (M35 and NGC 2158) and a super nova remnant (IC 443) are also visible in the field of view. 21P approx. mag 7.1.
20180916 - 4:20-4:59 AM EDT
Nikon D5500
300mmmED MF f/4.5 @ f/4.5
38 x 60s exposures, 800iso
iOptron SkyGuider Pro
----------------------
Regim Sig1.6 - stars aligned
__with overlayed comet from
Regim Sig1.6 - comet aligned
---------------------
AffinityPhoto stretch and overlay
Full frame - 33% reduction
Size:3.88 x 2.58 deg
wirtanen.astro.umd.edu/46P/46P_status.shtml
RG_21P_sig16_AP_c33r90q
Giacobini-Zinner
Comet 21P/Giacobini-Zinner passing through the foot of Gemini. After what seemed like weeks of clouds, some morning clearing finally occurred.
Discovered in 1900, comet 21P/Giacobini–Zinner is a periodic comet with an orbital period of 6.6 years and an estimated diameter of 2km. With a minimum orbit intersection distance of 0.035 AU, it's classified as a potentially hazardous object.
Two open clusters (M35 and NGC 2158) and a super nova remnant (IC 443) are also visible in the field of view. 21P approx. mag 7.1.
20180916 - 4:20-4:59 AM EDT
Nikon D5500
300mmmED MF f/4.5 @ f/4.5
38 x 60s exposures, 800iso
iOptron SkyGuider Pro
----------------------
Regim Sig1.6 - stars aligned
__with overlayed comet from
Regim Sig1.6 - comet aligned
---------------------
AffinityPhoto stretch and overlay
Full frame - 33% reduction
Size:3.88 x 2.58 deg
wirtanen.astro.umd.edu/46P/46P_status.shtml
RG_21P_sig16_AP_c33r90q