Spring astronomical observation party 2021-04-10 At this mini-observation party, We enjoyed the deep sky in spring with good seeinng condition and transparency and 45 cm newtonian. The brightness of the back of the field of view was good at a magnification of 150 times, and I was satisfied with seeing M51, 104 NGC4565 well.
Moon. 2021-04-02 I took a picture of the moon before observing Jupiter. Theophilus crater looked sharp and I enjoyed it for a long time, but after that, clouds struck and I gave up.
In mid-March, the laptop computer in the observation hut suddenly refused to operate, and the astronomical software that was included due to the initialization did not work, which was a problem! Somehow, the automatic introduction and auto guider software have finally returned. Since it is a telescope system that is a collection of my own works, it will be difficult if something goes wrong. The problem for the 45 cm reflection is only to deal with ashes, and it is difficult to use a sandwich mirror. I think the perfect set is unreasonable.
Yellow sand moon ② 2021-03-31 Tonight’s moon is low in altitude and is more yellowish due to the influence of yellow sand every day.
Yellow sand moon 2021-03-29 A yellowish moon with a veil due to the influence of yellow sand. 45 cm reflection (stopped to 30 cm)
Mars 2021-03-29 It is almost unobserved Mars. The apparent diameter is 5.4 arcseconds. I got the aperture of 45 cm to 40 cm and saw a faint feature at 600 x. The image is distorted due to the seeing. In the UV image, the white ones on the north and south sides are like clouds.
c / 2020 R4 ATLAS 2021-03-27 04:26 (JST) 45cm Newtonian A short time zone between the setting of the moon and the twilight. The color and tail of the comet are clearer than yesterday.
Jupiter 2021-03-25 This is the first image of this season, but the altitude is as low as 15 degrees and Seeing conditionis bad and it cannot be seen. In the image, GRS is about to be hidden in the lower right edge.
c / 2020 R4 ATLAS 2021-03-26 04:31 (JST) 45cm newtonian Is it a green comet and a pale tail on the right?
