C/2023 E1 (ATLAS) 2023-Jul-11 Dan Bartlett

I wouldn't have posted my second night's effort of this comet however my sky conditions were superb this night (Comparing to the last two nights where the Jet streams and skyglow have reeked havoc on star sizes and depth of sky magnitude).

Even the single 120 second subs showed more of the "tail" than I have witnessed to date. I even think I'm seeing a "bowing" of the anti-sun tail away from the direction of cometary travel. There also seems to be a slight eccentricity to the coma, shortened on the forward directed side. All could be my imagination, your guess is as good as mine.

I've included the 85 stacked frames of comet "only" full scale image, which initiall made my jaw dropped when fist view on the computer screen once the integration routine completed.

Observational details:
Backyard setup
scope: C14 D = 356mm; fl =729mm; F# 2
camera: asi 2600mcP
exposure: 85 x120 sec
Seeing: 5/5
Transparency: 9/10
Observer: DEBartlett

Projection ............... Gnomonic
Projection origin ........ [1308.491379 1079.931945] px -> [RA: 17 11 31.614 Dec: +80 14 50.65]
Resolution ............... 1.921 arcsec/px
Rotation ................. -1.153 deg
Reference system ......... ICRS
Observation start time ... 2023-07-11 07:21:10 UTC
Observation end time ..... 2023-07-11 07:23:10 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 30 N 2357 m
Focal distance ........... 729.00 mm
Pixel size ............... 6.79 um
Field of view ............ 1d 23' 47.0" x 1d 9' 9.1"
Image center ............. RA: 17 11 31.613 Dec: +80 14 50.65 ex: -0.000078 px ey: -0.000043 px
Image bounds:
top-left .............. RA: 17 28 43.211 Dec: +80 48 41.66 ex: -0.000818 px ey: -0.002259 px
top-right ............. RA: 16 53 48.156 Dec: +80 46 55.63 ex: +0.000056 px ey: -0.002163 px
bottom-left ........... RA: 17 27 20.233 Dec: +79 39 41.19 ex: -0.002631 px ey: +0.001363 px
bottom-right .......... RA: 16 56 16.305 Dec: +79 38 06.99 ex: +0.000989 px ey: +0.001743 px