Dr. John Barentine FRAS on Nostr: #Comet C/2023 A3 was an easy target tonight with a tail that was evident to the ...
#Comet C/2023 A3 was an easy target tonight with a tail that was evident to the unaided eye (even with haze and skyglow) low on the horizon to a length of 3-4°. Nucleus was probably 2nd mag without extinction.
The image is a quick median stack of 7×3.2 s frames in twilight tonight. Based on the angular dimensions of the frame, its tail was around 4 degrees in length.
#Astronomy #comet2023a3
Published at
2024-10-13 03:21:04Event JSON
{
"id": "899af9e11b57ff6614ece26ce5b5a34b1b28e07b9986d540111e8858171d64f8",
"pubkey": "9c8a6f962c1e223d2fc6990c3f9dd3209d8620624b522c692aa1542d9da71813",
"created_at": 1728789664,
"kind": 1,
"tags": [
[
"t",
"comet"
],
[
"t",
"astronomy"
],
[
"t",
"comet2023a3"
],
[
"proxy",
"https://astrodon.social/users/JohnBarentine/statuses/113297959427974866",
"activitypub"
]
],
"content": "#Comet C/2023 A3 was an easy target tonight with a tail that was evident to the unaided eye (even with haze and skyglow) low on the horizon to a length of 3-4°. Nucleus was probably 2nd mag without extinction.\n\nThe image is a quick median stack of 7×3.2 s frames in twilight tonight. Based on the angular dimensions of the frame, its tail was around 4 degrees in length.\n\n#Astronomy #comet2023a3\n\nhttps://cdn.masto.host/astrodonsocial/media_attachments/files/113/297/956/023/521/463/original/6c9797fa97a7d8c7.png",
"sig": "2c7786f51377bf28b75a26801f3b465268c40946d8e1b20921cdb099b31f371c98c23e6987d04e2545e75db399cfc8cba9b8ec530403d2c51a70f185e83e0c0c"
}