Uploaded by

BAA Comet Section

Observer

dbartlett

Observed

2026 Apr 05 - 00:00

Uploaded

2026 Apr 14 - 19:37

Objects

C/2025 R3

Planetarium overlay

Constellation

Pegasus

Field centre

RA: 22^h48^m
Dec: +20°06'
Position angle: -5°10'

Field size

1°57' × 1°25'

Full filename

2025r3/2025r3_20260405_dbartlett.jpg

Target name

C/2025 R3

Title

Measurement of 1st frame indicates brightness magnitude of 5.8 Tail dynamics subdued from previous night. Seeing a hazy plasma envelope surrounding the coma and front of comet (Best seen in the starless integrated image). Moonlight present. Observational details: Backyard setup scope: RASA11 D = 279mm; fl =620mm; F# 2.2 camera: asi6200mcP Seeing: 3.5/5 Transparency: 7/10 Bright Moonlight Observer: DEBartlett Location: June Lake, California, USA Image Info: (All images processed solely using PixInsight and Comet Photometry Tycho-Tracker) Full Frame Resampled 2x2; Cropped BIN1x1 Acquisition ………… 43 ×15 seconds Resolution ............... 2.506 arcsec/px Rotation ................. -5.174 deg Field of view ............ 1d 57' 32.9" x 1d 25' 13.0" Image center ............. RA: 22 48 44.210 Dec: +20 06 40.00