金星 ALPO-Japan Latest
Venus Image 2022/06/18(UT)
Antonio Cidadao,Frank J Melillo,Detlev Niechoy
A.Cidadao,F.Melillo,D.Niechoy
Dear sirs,average seeing but a cloud-free morning with normal transparency allowed a good number of independent images (each a 5min SER) from which 25% of frames were used.
A very distinct "hook-like" feature,was observed on today's Venus images (cloud features rotate with time as shown in the attached GIF).
A map projection from yesterday's and today's images was added to give a more broad context to the "hook-like" feature.
Last time I saw a hook like feature (less elaborated though) was 6 days ago (June 12),which I believe may correlate well with the rotation period of the mid-altitude cloud layer. I wonder if the differences in morphology observed in a rotation period correspond in some degree to the evolution/involution of the feature.
≪アントニオ シダダオ ポルトガル≫
[Antonio Cidadao Oeiras - Portugal]
[Frank J Melillo Holtsville NY U.S.A]
[Detlev Niechoy : Goettingen,Germany]