220p 20260808 dbartlett

Project Notes:
 

    220P/ McNaught still holding its brightness following August 5 out burst 
    Central cometary region showing bright shell and arrow shaped concentration despite blue processing artifact. 
    Dust tail less defined than previous. 
    Heavy IFN. 
    Measured cometary brightness magnitude 6.8. 

 

 
 

Observational details:
 

    Backyard setup 
    2xscopes Tandem: RASA11 D = 279mm; fl =620mm; F# 2.2 
    camera: asi6200mmP and asi6200mcP 
    Seeing: 3.5/5  
    Transparency: 8.5/10  
    Observer: DEBartlett 
    Location: June Lake, California, USA 

 

 
 

Image Info:
 

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

    Resampled 2x2 
    Acquisition...............172x60sec total 
    Resolution ............... 2.501 arcsec/px 
    Rotation ................. -2.145 deg 
    Field of view ............ 2d 59' 44.7" x 1d 53' 0.5" 
    Image center ............. RA: 2 39 57.865 Dec: +9 16 48.68 

 

 
 

220 2026 08 08.43 C 6.8 AR 28.0T 2E160 7.4 74.7m254 ICQ XX BARae C 7.4 mZCP IMX TYT U9*0.21 8.6 2.5s 2.5 Name: Daniel Bartlett; Location: June Lake Overlook (MPC U66); Comment: Comet Alt. 39.3; Source: COBS