Venus 2020-06-17 The fine weather during the rainy season. In the morning, the transparency was good, and Venus, which had passed more than 10 days since inferior conjunction , was separated from the sun, and sunlight stopped entering the telescope. You can look at Venus with peace of mind. The angle of the thin bow-shaped Venus statue floating in the blue sky returned to 180°.
2020-06-16 Foucault test image of 45cm F/4 reflector. This mirror is a sandwich mirror from Habble optics. A friend tested it when I removed the mirror to change the cell. There is a small hole in the middle of the mirror, but it seems to be overcorrected overall. I found that it can be used for F/4 planets.
2020-06-10(UT) Jupiter I could take only one Jupiter in the clear sky before cloudy. This will be the rainy season! On Jupiter’s side, NEBn is a bay-shaped cove, and NEBZ is a complex with white spots.
Minimini Astronomical Observatory. 2020-06-10 The last sunny night before the rainy season, it is a watching party for only two people. It was one hour long and covered by clouds at 9pm. I saw M13 with the 45cm reflection (270 times with binocular device, full of Bissiri stars inside, wonderful) M57 (ring nebula/270 times, the ring is slightly bluish, the circumference is reddish. After looking into the globular cluster of M10,14, it ends up as a cloudy sky.
2020-06-09(UT) Jupiter The clearness of the nights increased the transparency a little. In Japan, the south-central altitude of Jupiter is as low as 32°, and it is difficult to see Jupiter due to the turbulence of the air on the plains. Seeing was a little stable near the center of the south, and the details of Jupiter were clearly visible inside the NEB at 400 times magnification. I think the binocular device is good for a close look. The NEB has a monotonous feature, whereas the NEB sometimes has a complicated feature, and the NEBs have a bright white spot and an extremely complicated feature thereafter. I have summarized the Jupiter images at each wavelength so that they are easy to see. You can see the difference between the belt position and the description.
2020-06-08(UT) Jupiter The transparency was a little bad, but it was clear sky and the seeing was a little stable, and We could see the inside of Jupiter. We can see GRS. From the UV and CH4 images, there is a bright band near the equator of UV, which is a different pattern from last year.
2020-06-05(UT) Jupiter, Saturn images Although it was a thin cloudy night sky with poor transparency, the seeing condition was sometimes good. A little of the details of Jupiter’s surface. The resolution depends on seeing condition Changed the RGB filter. I can’t get the desired color. Saturn has poor transparency and GRB imaging is bad, so it’s just a picture. The inclination of the ring became smaller. Beautiful looking.
Full Moon 2020-06-06 So-called Strawberry Moon Compared with Jupiter in the same size!
2020-06-04(UT) Jupiter images. Poor transparency and bad seeing! Instantaneously, the details pop out and I can see the inside of the NEB belt feature. We can see the satellites of Ganymede and Europa.
Moon 2020-06-04 The full moon in June is low, with orange to yellow colors. Image from 45 cm down to 17 cm.
