C_2026_A1_MAPS_C14Hyperstar_ASI6200mcP_20x90sec_2026_02_13_193621local_JuneLake_California_USA_DEBartlett

Project Notes:

My first efforts on C/2026 A1 (MAPS).
SPCC color calibrated yielding a blue-green color.
The comet is obvious in individual 90sec subframes when debayered.
Needed to remove 27 of the 47 subframes due to low altitude transparency.
Snowbound.

Observational details:

Backyard setup
scope: C14 Hyperstar D = 356mm; fl =729mm; F# 2
camera: asi 6200mcP
Seeing: 4/5
Transparency: 6/10
Observer: DEBartlett
Location: June Lake, California, USA

Image Info (all ):

All images sampled 1x1 (CMOS = BIN 1x1)

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

Acquisition................20x90seconds
Resolution ............... 1.064 arcsec/px
Rotation ................. 0.367 deg
Field of view ............ 1d 7' 34.0" x 46' 21.1"
Image center ............. RA: 3 25 57.204 Dec: -24 18 45.19

📷 C2026A1MAPS_ImageViewer.png

C/2026 A1 (MAPS)

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

2026A1 2026 02 14.15 C 14.1 AR 36.0T 2A710 2.1 0.6m 83 ICQ XX BART I C 2.06mZCP IMX TYT 0 U9*0.06 14.4 2.1s 2.1 Location: June Lake Overlook (MPC XXX); Comment: Comet Alt. 23.6

COD XXX

OBS

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

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

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

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

C/2026 A1 14/02/2026 03:29:28 18.02 17.20 16.74 16.30 15.88 15.55 27.4 18.6 XXX

C/2026 A1 14/02/2026 03:29:28* 0.07 0.06 0.06 0.06 0.06 0.06 19 11.8 ATL

AFRHO LOG

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

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

C/2026 A1 14/02/2026 03:29:28 1.29 1.48 21.33 17.13 27 8 1 0.887 XXX📷 AFPHRO.png

Hint of 14.1 Magnitude Comet C/2026 A1 (MAPS) from February 14 2026