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Observation by Mike Mattiazzo: Finally got C/2025 R3 PANSTARRS after 6 ...

Uploaded by

BAA Comet Section

Observer

Mike Mattiazzo

Observed

2026 May 12 - 09:20

Uploaded

2026 May 14 - 20:58

Objects

C/2025 R3

Planetarium overlay









Constellation

Orion

Field centre

RA: 05h42m
Dec: -08°18'
Position angle: -143°02'

Field size

9° × 6°

Full filename

2025r3/2025r3_20260512_0920_mmattiazzo.jpg

Target name

C/2025 R3

Title

Finally got C/2025 R3 PANSTARRS after 6 nights of cloud. This image taken on 2026 May 12 at 09:20UT 17x30 sec stack exposure using Canon 6D and 200mm lens at f/2.8 iso 3200. processed in deepskystacker and flattened with graxpert. Orion nebula is at lower left. Comet visual estimate using 15x70mm binoculars = 6.1, tail 1.5 deg (photo>4 deg) Center (RA, Dec): (85.731, -8.302) Center (RA, hms): 05h 42m 55.539s Center (Dec, dms): -08° 18' 07.560" Size: 9.15 x 6.17 deg Radius: 5.518 deg Pixel scale: 16.1 arcsec/pixel "Orientation", may be incorrect, use at your own risk: Up is 142.8 degrees E of N

About this image
Finally got C/2025 R3 PANSTARRS after 6 nights of cloud. This image taken on 2026 May 12 at 09:20UT 17x30 sec stack exposure using Canon 6D and 200mm lens at f/2.8 iso 3200. processed in deepskystacker and flattened with graxpert. Orion nebula is at lower left. Comet visual estimate using 15x70mm binoculars = 6.1, tail 1.5 deg (photo>4 deg) Center (RA, Dec): (85.731, -8.302) Center (RA, hms): 05h 42m 55.539s Center (Dec, dms): -08° 18' 07.560" Size: 9.15 x 6.17 deg Radius: 5.518 deg Pixel scale: 16.1 arcsec/pixel "Orientation", may be incorrect, use at your own risk: Up is 142.8 degrees E of N
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