10p 20260803 dbartlett

Project Notes:
 

    Moonlight still persistent. 
    Broad dust tail sweeping upper right from the 2 o'clock pos. 
    Dust trail continues to be seen, razor sharp and with ease. 
    Secondary broad dust trail difficult, if not questionable, might be viewed on the right side of comet trail (Negative color image https://app.astrobin.com/i/mzdxmh?r=C ) 
    Measured brightness without comp stars with moonlight, measured at 8.7 mag. 

 

 
 

 
 

Observational details:
 

    Backyard setup 
    2xscopes Tandem: RASA11 D = 279mm; fl =620mm; F# 2.2 
    camera: asi6200mmP and asi6200mcP 
    Seeing: 3.5/5  
    Transparency: 7.5/10 Heavy Moonlight! 
    Observer: DEBartlett 
    Location: June Lake, California, USA 

 

 
 

Image Info:
 

(All images processed solely using PixInsight and Comet Photometry Tycho-Tracker)
 

    Resampled 2x2 
    Acquisition...............271x45sec total 
    Resolution ............... 2.502 arcsec/px 
    Rotation ................. -2.191 deg 
    Field of view ............ 3d 9' 59.3" x 1d 38' 29.8" 
    Image center ............. RA: 21 52 49.741 Dec: -25 14 51.87 

 

 
 

10P (Tempel 2)
 

ICQ line:
 

IIIYYYYMnL YYYY MM DD.DD eM/mm.m:r AAA.ATF/xxxx /dd.ddnDC /t.ttmANG ICQ XX*OBSxxf InT APERTURcamchip SFW C ## u.uu xx.x PIXELSIZE
 

 10 2026 08 03.33 C 8.7 AR 28.0T 2C465 3.5 9.7m281 ICQ XX BARaeI a315C 3.50mZCP IMX TYT 0 U9*0.08 8.7 2.5s 2.5 Location: June Lake Overlook (MPC U66); Comment: Comet Alt. 25.5
 

 
 

COD U66
 

OBS
 

CATALOG: ATLAS2 - BAND: r (Sun Mag=-26.93)
 

 
 

 10x10 20x20 30x30 40x40 50x50 60x60 RSR FC COD
 

COMET UTC +/- +/- +/- +/- +/- +/- N FWHM CAT
 

------------ ------------------- ----- ----- ----- ----- ----- ----- ---- ---- ---
 

10P 03/08/2026 08:02:12 11.36 10.77 10.45 10.22 10.04 9.91 165.2 16.5 U66
 

10P 03/08/2026 08:02:12* 0.07 0.07 0.07 0.07 0.07 0.07 77 21.7 ATL
 

 
 

 AFRHO LOG
 

COMET UTC DELTA r AP " MAG RSR CM +/- AFRHO OBS
 

------------ ------------------- ----- ----- ----- ----- --- ----- ---- ----- ---
 

10P 03/08/2026 08:02:12 0.41 1.42 66.61 9.82 165 614 81 2.788 U66
 
   
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