2022e3 20230210 2052 dbartlett

Closeup of Comet C/2022 E3 (ZTF), The Arrow Points at Mars, 2023-02-10

Here is my souvenir of Mars and the Green Comet.   Only 30 x 30 seconds out of 226 subs were good enough to be used for this stacked image.  Although the comet was still estimated to be 10 arc minutes closer  by the time of moonrise, the high clouds tend to over brighten Mars leaving most of my images unusable for stacking. 

???????From my side of the Earth's viewpoint, this image centers on the moment where the nucleus of Comet C/2022 E3 (ZTF) is 1º 17' from Mars. 

Dan

Observational details:
Backyard setup
scope: C11 RASA D = 279mm; fl =618mm; F# 2.2
camera: asi 6200mcP
exposure: 30 x30 sec
Seeing: 3/5
Transparency: 4/10
Observer: DEBartlett
Location: June Lake, California, USA

Image details:
WCS transformation ....... Linear
Projection ............... Gnomonic
Projection origin ........ [2345.033770 1562.457192] px -> [RA:  4 47 06.208  Dec: +25 32 12.17]
Resolution ............... 2.510 arcsec/px
Rotation ................. -0.003 deg
Reference system ......... ICRS
Observation start time ... 2023-02-11 04:52:17 UTC
Observation end time ..... 2023-02-11 04:52:47 UTC
Geodetic coordinates ..... 119 04 46 W  37 46 51 N  2360 m
Focal distance ........... 618.06 mm
Pixel size ............... 7.52 um
Field of view ............ 3d 16' 10.2" x 2d 10' 42.6"
Image center ............. RA:  4 47 06.214  Dec: +25 32 12.07
Image bounds:
   top-left .............. RA:  4 54 24.865  Dec: +26 36 51.24
   top-right ............. RA:  4 39 47.482  Dec: +26 36 49.80
   bottom-left ........... RA:  4 54 17.056  Dec: +24 26 14.13
   bottom-right .......... RA:  4 39 55.456  Dec: +24 26 12.72