Andrew Pearce
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27784liz.bsky.social
Andrew Pearce
@27784liz.bsky.social
You gotta love Chop Suey! and Toxicity
September 27, 2025 at 11:31 PM
The reason these were reported in roving observer format is that prior to 1966, the Perth Observatory was located in the city about 30kms west of its current location
September 13, 2025 at 5:27 AM
Z. Banfalvy is not related to this work. I think they had another 247 roving observer station captured in this MPEC.
September 12, 2025 at 5:03 PM
Terry did all the hard work in cleaning up images to allow me to measure!
September 12, 2025 at 5:02 PM
An image taken on Sept 2 from the Perth Observatory. m1=10.1 with 2’ coma. The Perth Observatory took a long series of images of this interesting comet that wasn’t well observed.
September 5, 2025 at 3:54 AM
C/1959 Y1 imaged at Perth Observatory on 31st March 1960 with the 33cm astrographic refractor. m1=5.0 with a 3.5' and 0.5 deg tail in PA 240 deg.
July 4, 2025 at 2:02 PM
C/1976 D2 imaged from Perth Observatory on 23rd November 1976 using 33cm astrographic refractor. m1=16.3 with a 0.3' coma.
July 4, 2025 at 1:49 PM
This is image of only discovery made from Perth Obs as reported on IAUC 3393. It actually turned out to be 73P/S-W, first time it was seen since 1930. Image taken on Aug 13th 1979. It was quite bright at mag 11.3 with a 4.8' tail in PA 108 deg
July 4, 2025 at 11:58 AM
No worries Maik! I have 28000 images from the Perth Observatory dating back to 1901 to go through and they always had an interest in comets, so plenty of images! I'm actually performing photometry on them using Tycho Tracker and submitting observations to COBS. The accuracy is not too bad.
July 4, 2025 at 11:09 AM
Hi Maik, here's an image of this comet from the Perth Observatory on Aug 25th 1981. I've performed photometry and m1=13.6 with a 0.9' coma. Apologies for the marker pens on the scanned image! Regards Andrew Pearce.
July 4, 2025 at 11:04 AM